Adrenal Insufficiency Diagnostic Testing

Test acutely ill patients for primary adrenal insufficiency when otherwise unexplained volume depletion, hypotension, hyponatremia, hyperkalemia, fever, abdominal pain, hyperpigmentation, or—particularly in children—hypoglycemia is present. Oxford Academic+2Oxford AcademicDiagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice GuidelinePubMedDiagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice Guideline - PMCsupport endocrinePrimary Adrenal Insufficiency Guideline Resources | Endocrine Society

For severe symptoms or suspected adrenal crisis, administer hydrocortisone before diagnostic results return. The recommended emergency regimen is 100 mg hydrocortisone intravenously or intramuscularly immediately, with fluid resuscitation, then 200 mg hydrocortisone over 24 hours by continuous intravenous infusion or 50 mg intravenously or intramuscularly every 6 hours. PubMed+1PubMedDiagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice Guideline - PMCPubMedAdrenal insufficiency: identification and management - NCBI Bookshelf

If doing so does not delay therapy, obtain serum cortisol and plasma ACTH before the first glucocorticoid dose. Once initial samples are drawn, high clinical suspicion warrants steroid treatment even before confirmatory testing; defer dynamic testing until the patient is clinically stable. ccjm+1ccjm[PDF] Abdominal pain without physical findings is not always without ...PubMedDiagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice Guideline - PMC

In a hemodynamically stable patient with suspected adrenal insufficiency, measure an early-morning serum cortisol with plasma ACTH collected concurrently. ACTH is the key discriminator after low or inappropriately low cortisol: an ACTH concentration greater than twice the upper limit of normal at any time of day is consistent with primary adrenal insufficiency, whereas low or inappropriately normal ACTH indicates secondary or tertiary disease. ccjm+2ccjmPrimary adrenal insufficiency in adults: When to suspect, how to ...ccjm[PDF] Abdominal pain without physical findings is not always without ...ccjmA 71-year-old woman with shock and a high INR | Cleveland Clinic Journal of medicine

Basal cortisol can triage the need for dynamic testing, but cutoffs are assay- and center-dependent. In an observational cohort of 804 patients undergoing cosyntropin testing, basal cortisol at least 450 nmol/L had a 98.7% negative predictive value for adrenal insufficiency; basal cortisol values of 100 nmol/L or lower and 450 nmol/L or higher had high diagnostic accuracy in that cohort. ScienceDirectScienceDirectDiagnostic Accuracy of Basal Cortisol Level to Predict Adrenal Insufficiency in Cosyntropin Testing: Results from an Observational Cohort Study with 804 Patients

Do not apply a single basal cortisol threshold as a universal exclusion rule. Current diagnostic strategy still recommends corticotropin stimulation testing for patients with symptoms or signs suggesting primary adrenal insufficiency when their condition permits, and contemporary commentary emphasizes limitations of single cortisol measurements. Nature+1NatureNature Index Adrenal Insufficiency Diagnosis and Managementsupport endocrinePrimary Adrenal Insufficiency Guideline Resources | Endocrine Society

Use a corticotropin stimulation test to confirm suspected primary adrenal insufficiency when the patient is clinically stable enough to undergo testing. The Endocrine Society guideline recommends the standard 250-mcg test for most patients and reserves the 1-mcg low-dose test for primary adrenal insufficiency when standard corticotropin is in short supply. ccjm+1ccjmA 71-year-old woman with shock and a high INR | Cleveland Clinic Journal of medicinesupport endocrinePrimary Adrenal Insufficiency Guideline Resources | Endocrine Society

A standard 250-mcg cosyntropin test can be performed at any time of day. In the cited clinical review, a cortisol value greater than 18 to 20 mcg/dL after intravenous cosyntropin excluded adrenal insufficiency; after intramuscular administration, a 30-minute value greater than 16 to 18 mcg/dL excluded adrenal insufficiency. These thresholds require alignment with the local assay and protocol. ccjmccjmA 71-year-old woman with shock and a high INR | Cleveland Clinic Journal of medicine

A blunted cosyntropin response confirms deficient adrenal reserve but does not establish adrenal versus central pathology. Chronic ACTH deficiency can produce adrenal hyporesponsiveness, so an abnormal response occurs in secondary disease as well as primary disease; use ACTH rather than the cosyntropin result alone to classify the disorder. ccjm+1ccjmPrimary adrenal insufficiency in adults: When to suspect, how to ...ccjm[PDF] Abdominal pain without physical findings is not always without ...

After documenting adrenal insufficiency, classify primary versus central disease immediately because mineralocorticoid evaluation and replacement apply to primary disease. Primary adrenal insufficiency requires lifelong glucocorticoid and mineralocorticoid replacement, whereas secondary adrenal insufficiency reflects impaired pituitary ACTH secretion and tertiary disease impaired hypothalamic corticotropin-releasing hormone signaling. ccjm+1ccjm[PDF] Abdominal pain without physical findings is not always without ...ccjmA 71-year-old woman with shock and a high INR | Cleveland Clinic Journal of medicine

For the primary pattern—low cortisol with elevated ACTH—measure renin and aldosterone to determine mineralocorticoid deficiency. Confirmed aldosterone deficiency is an indication for fludrocortisone replacement, in addition to glucocorticoid replacement. support endocrinesupport endocrinePrimary Adrenal Insufficiency Guideline Resources | Endocrine Society

For the central pattern—low cortisol with low or inappropriately normal ACTH—evaluate for pituitary or hypothalamic structural causes when clinically indicated; adrenal imaging and pituitary imaging can identify structural etiologies in their respective branches. NatureNatureNature Index Adrenal Insufficiency Diagnosis and Management

Do not postpone emergency hydrocortisone for a technically ideal stimulation test. In severe suspected adrenal insufficiency, the clinical priority is immediate stress-dose therapy, with diagnostic confirmation and etiologic classification pursued after stabilization. Oxford Academic+2Oxford AcademicDiagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice GuidelinePubMedDiagnosis and Treatment of Primary Adrenal Insufficiency: An Endocrine Society Clinical Practice Guideline - PMCsupport endocrinePrimary Adrenal Insufficiency Guideline Resources | Endocrine Society

Avoid interpreting a delayed ACTH result as if it were paired with the original cortisol. Concurrent early-morning cortisol and ACTH sampling gives the most reliable primary-versus-central distinction, while dynamic testing assesses reserve rather than disease location. ccjm+2ccjmPrimary adrenal insufficiency in adults: When to suspect, how to ...ccjm[PDF] Abdominal pain without physical findings is not always without ...ccjmA 71-year-old woman with shock and a high INR | Cleveland Clinic Journal of medicine

In patients receiving exogenous corticosteroids or with concern for treatment-related suppression, recognize that systemic corticosteroid exposure is associated with adrenal insufficiency and that inhaled fluticasone has been associated with impaired adrenal responses in bronchiectasis cohorts. A medication history should therefore precede interpretation of a suspected central pattern. BMJ+1BMJBritish Thoracic Society Guideline for bronchiectasis in adults - ThoraxWileyLong‐term corticosteroid use, adrenal insufficiency and the need for ...