Measuring cortisol: which examinations are available and who orders them
The key points at a glance
In medical care, cortisol is not measured with one examination, but with one of several—and which one is used depends on the question. If too much cortisol is suspected, the dexamethasone suppression test, 24-hour urine collection, and late-evening salivary cortisol are options. If too little is suspected, the morning blood level is measured together with the hormone ACTH.
This article describes the process, not the feeling. It explains which methods are available, how they differ, who orders them, how to get an appointment for one in Germany, who pays the bill, and what happens after an abnormal initial result. It deliberately does not list prices for medical examinations—why is explained in Chapter 10.
You will first learn what question lies behind a measurement and who asks it. This is followed by a comparison of the three initial examinations, the role of a simple blood draw, how the suppression test works, and the factors that can distort a result. The latter part covers costs, what happens after an abnormal finding, and the limitations that even medical testing cannot overcome.
What to expect in this article
1. What question lies behind a cortisol measurement
2. Who orders the measurement and how you get there
3. The three initial examinations compared
4. Where a simple blood draw has its place
5. The dexamethasone suppression test, step by step
6. 24-hour urine collection and late-evening salivary cortisol
7. What the guideline requires for the initial examination
8. What shifts a result before anyone interprets it
9. The path from the question to the findings
10. Who pays for the examination
11. What happens after an abnormal initial finding
12. Which at-home test includes a cortisol reading
13. Who the medical route is right for—and who it is not
14. Limitations: what medical testing cannot clarify either
15. What ultimately matters
Frequently asked questions
Sources
What question lies behind a cortisol measurement
Those who search for “measuring cortisol” are usually looking for a number. In medical care, however, the process does not begin with a number, but with a question. And there are exactly two.
The first is: Is there permanently too much cortisol in the body? The second is: Is there too little? These two questions lead to completely different tests, different times of day, and different medical specialties. If they are not distinguished beforehand, you end up with a lab report that is of no use to anyone.
This is the real difference between a measurement at home and a measurement in healthcare. At home, you choose a test and then get a number. In clinical practice, the question determines the method, and the number comes at the end, not the beginning.
Key message
In medical care, there is no single “cortisol test.” There are several methods, and which one is used depends on the direction of the suspicion—too much or too little.
Why this article does not begin with the symptoms
Which symptoms suggest too much cortisol and which only look that way is explained in High cortisol: which symptoms in women really point to it. This article also puts the widely used online term “adrenal fatigue” into context; it does not refer to a recognized medical condition. This article takes both points for granted and begins one step later: the suspicion is already present, and the focus now is on the diagnostic process.
How a sample is collected at home, why the time of day determines the result, and when two of your own measurements can actually be compared is explained in Measuring cortisol at home. This is not repeated here. You can find the basics about the hormone itself in What is cortisol?.
Who orders the test and how you get there
The first point of contact is generally a primary care practice. It orders laboratory tests itself, knows your medical history and medications, and determines whether the suspicion points toward cortisol at all or rather toward something else.
This is not a mere formality. A large proportion of the symptoms that lead people to consider cortisol have other causes: the thyroid, iron stores, sleep, or medication. A primary care practice also checks these possibilities before starting a complex procedure.
When endocrinology takes over
If the suspicion persists or an initial result is abnormal, the next step is an endocrinology practice or a clinic's outpatient department. This is where procedures that require preparation and a fixed sequence are performed—above all, the dexamethasone suppression test and measurement of the hormone ACTH.
Endocrinology practices are few and far between in Germany, and the waiting time for an appointment is the most common reason people turn to an at-home test in the meantime. In this situation, there is an official route that many people do not know about.
The route via the appointment service center
People with statutory health insurance can arrange a specialist appointment through the appointment service centers by calling 116117. According to the German National Association of Statutory Health Insurance Physicians, this generally requires a referral with a referral code; this requirement does not apply to appointments in primary care, with pediatricians and adolescent physicians, or in gynecology.
The German National Association of Statutory Health Insurance Physicians specifies staggered deadlines for arranging appointments: in acute cases, following an initial medical assessment, no later than the next day; in other cases, staggered deadlines apply up to a maximum of the 35th calendar day (Agreement on Appointment Service Centers, 2021 version, in force since 2022). The degree of urgency is not at your discretion but at that of the referring practice.
In practical terms, this means that the referral code on the referral form is the difference between an appointment in weeks and an appointment in months. Anyone who goes home after the primary care consultation without a referral has not even opened the shorter route.
What is clarified before the first sample
Before a tube is even labeled, a series of questions must be addressed that help determine the procedure. How long have the symptoms been present, and have they changed? Which medications are being used, in what form, and for how long? Are there previous findings from other practices, and are blood pressure or blood sugar outside the expected range?
This also includes questions that at first glance have nothing to do with hormones. When do you get up, when do you go to bed, do you work shifts? These details help determine whether late-night salivary cortisol can be measured meaningfully at all. A practice that asks about them is not delaying things; it is saving you a test.
Bringing these details prepared significantly shortens the initial consultation. A handwritten list is sufficient. The most useful part is what most people underestimate: a complete list of all preparations used, including products that are not perceived as medication.
Comparison of the three initial tests
When excess cortisol is suspected, three procedures are suitable as initial tests. They measure the same hormone but nevertheless do not answer the same question. The table compares them according to the same six criteria.
| Criterion | 1-mg dexamethasone suppression test | 24-hour urine collection | Late-night salivary cortisol |
|---|---|---|---|
| What is measured | Blood serum cortisol in the morning after taking a medication the previous evening | Free cortisol excreted by the body in urine over an entire day | The unbound fraction of the hormone in saliva at the lowest point of the daily rhythm |
| How the sample is obtained | One tablet late in the evening, blood draw the next morning at the practice | Complete collection over 24 hours in a container, at home, without missing a single portion | A cotton swab in the mouth late in the evening, at home, without brushing the teeth or eating beforehand |
| How often according to the guideline | Once as an initial test (Endocrine Society, 2008) | At least two collections (Endocrine Society, 2008) | Two samples on different evenings (Endocrine Society, 2008) |
| What question it answers | Can cortisol production be suppressed by an artificial hormone, as it is in a healthy person? | How much cortisol is produced over the entire day in total? | Does the level still fall at night, or is the daily rhythm absent? |
| What typically causes the result to fail | Medications that speed up or slow down dexamethasone breakdown; a forgotten or prematurely taken tablet | A single missed portion makes the collection unusable; severely impaired kidney function also limits its interpretability | Blood in the saliva due to bleeding gums, smoking, corticosteroid-containing inhalers, shift work with a shifted rhythm |
| Where it takes place | Preparation at home, measurement in the practice; the medication is prescribed | Collected at home, analyzed in the laboratory through the prescribing practice | Sample collected at home with a tube from the medical practice, analyzed in the laboratory |
Two things stand out in this comparison. First, a large part of these tests takes place at home—the collection, the pill, the swab. The medical components are prescribing, evaluating, and interpreting the test, not the location. Second, none of the three procedures is a simple measurement. All three are protocols with conditions, and those conditions also influence the result.
Where a Simple Blood Draw Has Its Place
The most obvious test is missing from the table above, and there is a reason for that. A single blood cortisol measurement is not one of the initial tests when the question is whether there is too much. It fluctuates too much over the course of the day to demonstrate sustained exposure.
The reverse question looks different. When the concern is too little cortisol, the morning blood level is exactly the right place to start—because the level should be high then, and it simply is not.
The Morning Level and the Hormone Beside It
The Endocrine Society guideline on primary adrenal insufficiency describes the finding that should raise concern: a morning cortisol below 140 nanomoles per liter, equivalent to 5 micrograms per deciliter, together with elevated ACTH (Bornstein and colleagues, Journal of Clinical Endocrinology & Metabolism, 2016).
ACTH is the hormone from the pituitary gland that drives the adrenal gland to produce cortisol. It is therefore almost always measured together with cortisol: only the pair of values shows where the problem lies. If ACTH is more than twice the upper limit of the reference range according to the same information, this suggests a disorder in the adrenal gland itself.
The stimulation test as confirmation
As the standard for confirmation, the same guideline names the stimulation test with 250 micrograms of corticotropin. A synthetic form of ACTH is administered, and then it is checked whether the adrenal gland responds. If the peak value after 30 to 60 minutes remains below 500 nanomoles per liter, equivalent to 18 micrograms per deciliter, adrenal insufficiency is considered confirmed (Endocrine Society, 2016).
This test is an intervention involving an infusion and a time window, not a lab slip. It takes place in a clinic or outpatient facility and cannot be recreated with a sample collected at home. This is the clearest dividing line between the two worlds discussed in this article.
The dexamethasone suppression test step by step
The suppression test is the procedure most often misunderstood because its name sounds like it involves a measurement. It does not measure how much cortisol is present. It checks whether cortisol production can still be switched off at all.
This is based on a simple rule of the body: When enough cortisol is present, the pituitary gland reduces the supply. Dexamethasone is a synthetic corticosteroid that mimics this exact signal to the body. In healthy people, the body then produces very little of its own cortisol the following morning.
Prescription and medication review
The clinic prescribes the dexamethasone and reviews your complete medication list beforehand. Without this review, the result cannot be interpreted later.
1 milligram late in the evening
You take a 1-milligram tablet of dexamethasone at the specified time in the evening. The timing is part of the procedure, not a recommendation.
Blood draw the next morning
The following morning, blood is drawn in the clinic and serum cortisol is measured from it. One appointment, one tube, no collection.
Interpreting the cutoff
The European guideline for adrenal incidentalomas gives a cutoff of 50 nanomoles per liter, equivalent to 1.8 micrograms per deciliter (Fassnacht and colleagues, European Journal of Endocrinology, 2023).
If cortisol falls below this cutoff in the morning, the suppression has worked. If it remains above it, it has not—and that is precisely when further evaluation begins. The guideline itself emphasizes that classification depends on whether this cutoff is exceeded or not reached, not on the exact value.
A result above the cutoff is therefore not yet a diagnosis. It is an abnormal initial finding that leads to a second step. What that second step is can be found in Chapter 11.
24-hour urine collection and late-night salivary cortisol
The other two initial examinations do not require medication. Instead, they require something else from you: care over a longer period.
The 24-hour urine collection
A 24-hour urine collection determines how much free cortisol the body excretes over a complete day. The advantage is obvious: A single high number in the morning does not matter here because the total is calculated over 24 hours. The fluctuation that makes a single blood sample unusable disappears in the collection container.
The price of this is completeness. If even a single portion is not collected, the result will be too low, without anyone being able to recognize this later. For the same reason, the Endocrine Society guideline calls for at least two collections, not one (2008).
Late-night salivary cortisol
Late-night salivary cortisol uses a property of the hormone that none of the other tests captures: its daily rhythm. In healthy people, the level falls to a low point by late evening. If this decline does not occur, it is an independent sign—regardless of how high the morning level was.
Saliva also contains only the unbound fraction of the hormone, meaning the part that actually acts in the tissue. The guideline therefore also calls for two samples taken on different evenings (Endocrine Society, 2008). Sample cleanliness is important: blood from the gums, food residue, smoking, or a cortisol-containing inhaler can distort the result.
People who work shifts have a particularly difficult time with this. The test assumes a normal day-night rhythm. If your rhythm is permanently shifted, the lowest point is not where the clock expects it to be.
Why these two procedures are not available as self-tests
Both examinations take place at home, and neither requires a device. Nevertheless, they are not included in the mybody®x product range, and there is an objective reason for this: Their value comes not from the sample but from what has been specified around it.
For 24-hour urine collection, this includes the number of collections, how the collection container is handled, and assessing whether the collection was complete. For salivary cortisol, it includes the time of day, coordinating it with your actual daily rhythm, and checking for cortisol-containing sprays. Both are part of a doctor's instructions, not a package insert.
This is not modesty but a matter of distinction. A self-test that imitates one of these examinations without providing the necessary conditions produces a number that looks like a finding but is not one.
What the guideline requires for the initial evaluation
The authoritative guideline for the initial evaluation comes from the Endocrine Society and was published in the Journal of Clinical Endocrinology & Metabolism. Its central recommendation for the initial evaluation is notably open-ended.
Documented Source
“For the initial testing for Cushing’s syndrome, we recommend one of the following tests based on its suitability for a given patient.”
Endocrine Society
The Diagnosis of Cushing’s Syndrome – An Endocrine Society Clinical Practice Guideline, Recommendation 3.4, Journal of Clinical Endocrinology & Metabolism 93(5), 2008. Original wording in English.
In plain English: For the initial evaluation, one of the procedures mentioned is recommended, selected according to what suits the individual. There is therefore no fixed order that applies to everyone. Someone who works shifts, takes certain medications, or has impaired kidney function: in each of these cases, the choice will be different.
The same guideline specifies what follows an abnormal initial result: another of the recommended procedures. The search for the cause begins only when two different tests are consistently abnormal. A single result does not establish this diagnosis—and a value from a home test even less so.
What Shifts a Result Before Anyone Interprets It
Between the sample and the result lies a series of factors that can shift the value without anything being abnormal in the adrenal gland. They are why every procedure begins with a conversation, not a tube.
Medications in Both Directions
In the suppression test, what matters most is how quickly the body breaks down dexamethasone. Medications that accelerate its breakdown lower the active concentration—the suppression is weaker, and the result looks more abnormal than it actually is. Medications that slow the breakdown have the opposite effect. That is why medication reconciliation comes before prescribing.
Corticosteroid-containing medications play a role of their own, in every form: tablets, ointments, nasal sprays, inhalers, and injections into a joint. They are not a minor side issue but the most common explanation for excessive cortisone effects in the body. Anyone who takes or applies them should address the matter with the prescribing practice, not place an order.
Hormonal Contraception and the Transport Protein Effect
Estrogen-containing contraceptives increase the protein that transports cortisol in the blood. Because a blood test measures total cortisol—that is, bound and free cortisol together—the result is systematically higher as a result. The article on symptoms in women explains how significant this effect is and what follows from it, with figures.
This has a practical consequence for choosing the procedure: saliva and 24-hour urine collections measure free cortisol and are less affected by this effect than measurement from blood. This is one reason the guideline makes the choice dependent on the individual person.
Technical errors in collecting the sample
The least obvious source of error is the sample itself. An incomplete urine collection produces a value that is too low. A saliva sample taken after brushing your teeth may contain blood and produce a value that is too high. A tablet taken two hours too early shifts the entire time window.
None of these errors can be detected from the result. The laboratory measures what is in the tube and writes down a number. Only the person who collected the sample knows whether it was obtained as intended. That is precisely why every result must state how it was produced.
The path from the question to the findings
The order of the stations is not arbitrary. Each depends on the result of the previous one, and anyone who skips one will sooner or later end up back at the beginning.
The five stations
The primary care consultation
Symptoms, course, and a complete medication list. This is where the decision is made as to whether cortisol is even relevant—and in which of the two directions.
The basic blood values
Often the thyroid is checked first, along with a complete blood count, blood glucose, and iron stores. Not to buy time, but because these values can explain the same symptoms and are available more quickly.
The initial cortisol test
One of the three procedures from Chapter 3, selected according to your situation. Or, when the question is whether there is too little, the morning level together with ACTH.
Confirmation with a second procedure
If the first result is abnormal, another of the recommended procedures follows. Only two concordant findings support the next step (Endocrine Society, 2008).
The search for the cause
Only now does the question arise of where the excess or deficiency comes from. This stage is handled by endocrinology and includes imaging studies.
Months may pass between station one and station five. This is unsatisfactory, but it is not an oversight: each station is the filter for the next. Anyone who enters at station three without having stations one and two will get a number that no one can interpret.
Who pays for the test
There is deliberately no figure here. The reason belongs at the beginning of this chapter, not at the end: for a cortisol measurement, a 24-hour urine collection, or a suppression test, there is no single patient-facing amount for which an institution can take responsibility. What ultimately appears on an invoice depends on the number of parameters measured, the billing basis, and who provides the service. A figure that does not reflect this would be false precision.
What can be stated reliably, however, is the rule behind it. If a physician orders the examination because it is necessary to investigate a symptom, it is part of medical treatment. Patients with statutory health insurance do not have to make a separate payment for it. That is precisely the value of the initial appointment.
Where the boundary for self-payment lies
The situation is different when there is no medical question behind it, but simply a desire to check one’s own level. In that case, the examination is a self-pay service, and the amount is set by the practice performing it. The only reliable information comes from the practice itself, before the examination and in writing.
Privately insured patients and those eligible for public-sector aid are subject to separate rules again, depending on their respective plans. Here too, asking before the examination is a shorter route than clarifying matters afterward.
By contrast, a home test is always self-pay. Its price is known in advance and is stated in this article—that is the only price we can mention without vouching for someone else’s figure.
Chapter at a glance
For physician-ordered cortisol tests, this article does not state amounts in euros because there is no reliable figure from an institution that applies to all cases. The key rule is this: if the examination is necessary to investigate a symptom and has been ordered by a physician, it is part of medical treatment. Without this clinical question, it is a self-pay service, and the amount is set by the practice performing it, which should state it in writing beforehand. A home test always has to be paid for by the patient, and its price is known in advance.
What happens after an abnormal initial finding
An abnormal first result is often interpreted as a diagnosis. It is not. It is the point at which the examination really begins, and the next steps are defined.
The first step is confirmation with a second recommended method. Only when two different examinations both show abnormal results does the question of the cause arise (Endocrine Society, 2008). This sequence is the real safeguard against a misdiagnosis, because each method has its own sources of interference—and these are not the same for two different methods.
The search for the cause
Once excess cortisol is established, the question is where it originates. The first step is to determine ACTH: if it is low, the source is in the adrenal gland itself; if it is normal or elevated, the source lies further up the regulatory chain. This determines which imaging examination follows and which additional tests are performed.
A special case is an adrenal incidentaloma: a nodule discovered during imaging performed for an entirely different reason. For this, the 2023 European guideline explicitly recommends the 1-mg dexamethasone suppression test to detect mild autonomous cortisol secretion (Fassnacht and colleagues, European Journal of Endocrinology, 2023). Here, the test is therefore performed at the outset, even though no one presented with symptoms.
When nothing abnormal is found
The more common outcome is an unremarkable result. Two unremarkable initial examinations make excess cortisol as an explanation unlikely—and that is a result, not a non-result. It closes off one line of inquiry and clears the way for the next.
The symptoms are not explained by this, nor have they gone away. They return to the conversation they came from, where other possibilities are then on the list: the thyroid, sleep, iron stores, a depressive episode, or medication. Anyone who knows this beforehand will not experience an unremarkable result as a setback.
Which home test includes a cortisol value
The question remains: what can a home test contribute in this context at all? The honest answer appears before the product card, not behind it: It does not replace any of the examinations described in Chapter 3, and it is not a diagnostic pathway for too much or too little cortisol.
What it can do is something else. It provides a baseline value along with a range of other blood values that could explain the same symptoms—and it does so before the appointment takes place. mybody®x (MYBODY Lab GmbH) offers a capillary blood test for this purpose, with the sample collected at home.
Blood test from capillary blood
Women’s Wellness Check
In addition to cortisol, it includes a thyroid profile with TSH, fT3, and fT4, as well as prolactin, SHBG, ferritin, vitamin B12, vitamin D3, blood lipids, liver and kidney values, blood glucose, and CRP. What the test cannot do: It provides a cortisol value at the time of sampling, not a daily profile or any information about nighttime suppression. It does not replace the dexamethasone suppression test, 24-hour urine collection, late-night salivary cortisol measurement, ACTH measurement, or stimulation test. The product page does not list cycle hormones such as estradiol, progesterone, or FSH.
Laboratory analysis 3–5 business days after sample receipt
Product-page information without a location, accessed 27 August 2026
One detail is intentionally omitted here. As of 27 August 2026, the product page lists several different numbers of included biomarkers side by side. As long as this discrepancy remains, this article gives no number, only the list of values.
Its appropriate use is therefore narrowly defined: as a starting point for a conversation that is already due to take place, and as a look at the values that could explain the same symptoms. How to collect the sample and why the time of day determines the number is explained in Measuring cortisol at home.
Who the medical route is right for—and who it is not
Not every question about cortisol requires the procedures from Chapter 3. And not every question can be answered with an individual measurement. The following comparison distinguishes between the two cases.
The medical route is the right one if …
you use cortisone medications in any form, including as an ointment, nasal spray, or inhalation. Interpretation belongs with the prescribing practice.
a nodule was found on your adrenal gland during imaging for another reason. The suppression test is specifically intended for this.
the question goes in the other direction and you might have too little cortisol. The stimulation test cannot be replicated at home.
you already have a cortisol result that was above the stated range and want to know what it means.
Probably not the right approach if …
you are looking for a number to substantiate a stressful phase of life. There is no test for that, and an abnormal result would not change it.
you want to track your level regularly. The procedures from Chapter 3 are designed for diagnostic clarification, not monitoring over time.
you work shifts and want to have your evening saliva level measured without discussing it beforehand. The shifted rhythm makes the result unusable.
you are hoping the result will provide a treatment recommendation for everyday life. A test answers whether something is present, not what you should do differently tomorrow.
Limitations: what medical testing does not clarify either
At the end of this path, there is no device that indicates a person's level of strain. Even the most elaborate procedures described answer a narrowly defined question: Is there a disorder of cortisol regulation, yes or no?
At the end of this path, there is no device that indicates a person's level of strain.
This leads to three limitations that are rarely stated explicitly in conversation. The first: An unremarkable result does not rule out that you are feeling unwell. It rules out one particular explanation, and nothing more.
The second: An abnormal result does not identify a cause. It leads to the next test, and the search for the cause is a separate stage with its own duration.
The third concerns the reference ranges. They depend on the laboratory, method, and age. Two results from two laboratories are not readily comparable, even if both contain a number in the same unit. The information on your own test report is always authoritative.
And a fourth limitation concerns this article itself: It describes procedures, does not make a diagnosis, and does not replace a conversation. Which procedure is right in your case is decided by the practice familiar with your medical history.
What matters in the end
Anyone searching for “measure cortisol” is looking for a number. What they find is a procedure with conditions—and the conditions are the actual information. A suppression test without a medication review, a urine collection with one missing sample, or a saliva sample taken after brushing your teeth: In all three cases, a number is produced, and in all three cases, it says nothing.
The most concrete next step is therefore not ordering a test, but making a list. Write down which symptoms have been present and since when, and list every medication you use—including creams, sprays, and contraception. This list helps determine during the initial consultation which procedures are even suitable.
And if you take one thing away from your appointment with your general practitioner, let it be the question of a referral with a referral code. It costs one sentence and considerably shortens the route to endocrinology. That is the part of this article that pays off most quickly.
Frequently asked questions
How is cortisol measured at the doctor’s office?
That depends on the question. If the concern is too much cortisol, three initial tests are possible according to the Endocrine Society guideline (2008): the 1-milligram dexamethasone suppression test, free cortisol in 24-hour urine, and late-night salivary cortisol. Two measurements are recommended for both urine collection and saliva. If the concern is too little cortisol, the evaluation begins with the morning blood level together with ACTH and, if necessary, is confirmed with a stimulation test (Endocrine Society, 2016).
Who issues the referral for a cortisol test?
Usually, your general practitioner’s office. It orders the initial laboratory tests itself and refers you to endocrinology if a procedure requiring preparation is planned. For patients with statutory health insurance, the referral code on the referral is crucial: With it, the appointment service center at 116117 arranges a specialist appointment— in urgent cases, after an initial medical assessment, by the next day at the latest; otherwise, in stages, by the 35th calendar day at the latest (National Association of Statutory Health Insurance Physicians, 2021 version, in force since 2022).
How much does a cortisol test cost at the doctor’s office?
This article deliberately does not state a figure because there is no reliable figure from an institution that applies in all cases. The amount depends on the number of parameters measured, the billing basis, and the provider’s practice. The underlying rule is reliable: if the examination is ordered by a physician and is necessary to investigate a symptom, it is part of medical treatment. Without this clinical question, it is a self-pay service, and the practice should state the amount in writing beforehand.
Why isn’t a single blood draw for cortisol sufficient?
Because cortisol follows a pronounced daily rhythm, a single number primarily reflects the time of day. For this reason, a simple blood draw is not among the initial investigations when the question is whether there is too much cortisol; the Endocrine Society guideline (2008) instead lists the suppression test, 24-hour urine collection, and late-night salivary cortisol. When the question is whether there is too little cortisol, however, the morning value is the right starting point—together with ACTH.
Can an at-home test replace the dexamethasone suppression test?
No. The suppression test is not a measurement procedure but a protocol: an prescribed medication is taken in the evening, serum cortisol is measured the next morning, and the result is assessed against the threshold of 50 nanomoles per liter or 1.8 micrograms per deciliter (Fassnacht and colleagues, European Journal of Endocrinology, 2023). An at-home test provides a cortisol value at the time of sampling and therefore answers a different question.
Next step
The checklist before your appointment
If you want a baseline before your appointment, the Women’s Wellness Check provides thyroid, iron stores, and vitamin D results alongside cortisol—values that can explain the same symptoms. How to collect the sample and why the time of day determines the result are explained in the article about measuring at home.
Women’s Wellness Check Measure cortisol at homeRead more
You might also be interested in this
The question before the procedure: which signs actually indicate too much cortisol and which only appear to.
Adrenal cortex development, regulation by ACTH, and the hormone’s functions in metabolism.
Sources
- Nieman LK, Biller BMK, Findling JW, Newell-Price J, Savage MO, Stewart PM, Montori VM: The Diagnosis of Cushing’s Syndrome – An Endocrine Society Clinical Practice Guideline. Journal of Clinical Endocrinology & Metabolism 93(5):1526–1540 (2008) – academic.oup.com
- Fassnacht M and colleagues (European Society of Endocrinology in collaboration with ENSAT): Management of adrenal incidentalomas – European Society of Endocrinology clinical practice guidelines. European Journal of Endocrinology 189(1):G1–G42 (2023) – academic.oup.com
- Bornstein SR, Allolio B, Arlt W and colleagues: Diagnosis and Treatment of Primary Adrenal Insufficiency – An Endocrine Society Clinical Practice Guideline. Journal of Clinical Endocrinology & Metabolism 101(2):364–389 (2016) – academic.oup.com
- National Association of Statutory Health Insurance Physicians: Appointment scheduling through appointment service centers, agreement in the version dated 06 December 2021, in force since 01 January 2022 – kbv.de
The verbatim quotation on the initial examination, the selection from several procedures, the requirement for at least two collections for 24-hour urine and two samples for late-evening salivary cortisol, and the rule that a further recommended procedure follows an abnormal initial finding and that only two concordant findings lead to a search for the cause are taken from source [1]. The cutoff of 50 nanomoles per liter or 1.8 micrograms per deciliter in the 1-milligram dexamethasone suppression test, the note that what matters is whether this threshold is exceeded or not reached rather than its exact level, and the role of the suppression test in an adrenal incidentaloma are taken from [2]. Morning cortisol below 140 nanomoles per liter or 5 micrograms per deciliter together with elevated ACTH, the classification of an ACTH value more than twice as high, the stimulation test with 250 micrograms of corticotropin, and the peak value below 500 nanomoles per liter or 18 micrograms per deciliter are taken from [3]. The requirement for a referral with a referral code, the exceptions to it, and the graduated referral deadlines up to and including the 35th calendar day are taken from [4]. Information on price, range of values, sample type, and laboratory comes from the mybody®x product page, accessed on 27 August 2026; processing times follow the central specification for blood tests. This article deliberately provides no figure for the cost of medical cortisol tests because no reliable figure valid for all cases is available from an institution. All sources were accessed and reviewed on 27 August 2026.
mybody®x Editorial & Specialist Team
Laboratory diagnostics Blood analysis interpretation Hormones and metabolism Nutritional science
This article was created by the mybody®x editorial and specialist team. The team combines laboratory diagnostics, the interpretation of blood analyses, and nutritional science. Those who contribute to it are listed on the authors page.
Published on 24 August 2025 · Last updated on 27 August 2026
The content is for general information and does not replace medical advice, diagnosis, or treatment. Reference ranges depend on the laboratory, method, and age; the information on your report is always authoritative.
Share now:
Cortisol too high: which symptoms in women really indicate it
Foods with Histamine: The Complete Guide to Your Well-Being