Confirm the medication doses with physician. Assay for GH: GH:Immunoenzymatic Assay Precautions: Facial flushing occurs immediately after administration of GHRH in about half of the patients. Paresthesias, nausea, and abnormal…
Precautions: Sustained hypotension may occur. Keep patient supine throughout testing. Patients may experience dry mouth or drowsiness [1] Interpretation: Criteria for diagnosis of pheochromocytoma : 3 h after clonidine; one of…
Assay for Aldosterone: Enzymatic Radioimmunoassay (RIA). Precautions: Do not perform this test in patients with severe uncontrolled hypertension, renal insufficiency, cardiac insufficiency, cardiac arrhythmia, or severe hypokalemia [1]. Interpretation: With…
50 mg of captopril. Blood tubes for plasma renin activity (PRA) and aldosterone. Assay for PRA and Aldosterone: Radioimmunoassay. Precautions: Monitor BP hourly. Interpretation: Plasma aldosterone is normally suppressed by captopril…
Day Date What to do 1 Day and date Have labs (thyroglobulin) drawn Related posts: Metyrapone Stimulation Test Ovine Corticotropin-Releasing Hormone (oCRH) Stimulation Test Insulin Tolerance Test (ITT) GHRH–Arginine GH…
Sample ACTH (pg/mL) Prolactin (ng/mL) Cortisol (µg/mL) Petrosal sinus Petrosal sinus Peripheral Right Left ACTH ratio Peripheral Right Left Prolactin ratio Peripheral R/P L/P R/L R/P L/P ADH (− 10 min) ADH…
Precautions: Do not leave the patient unattended since hypoglycemia is expected. A physician must be available in the walking distance from the room where the ITT is performed. Interpretation: A…
Assay for Cortisol: Chemiluminescence immunoassay (CLIA) . Precautions: Cosyntropin is category C of pregnancy. Interpretation: Normal response: Peak stimulated cortisol value > 18 mcg/dl at 30 min [1, 2]. Most patients achieve higher…
© Springer International Publishing Switzerland 2015Ahmet Bahadir Ergin, A. Laurence Kennedy, Manjula K. Gupta and Amir H. HamrahianThe Cleveland Clinic Manual of Dynamic Endocrine Testing10.1007/978-3-319-13048-4_7 7. Overnight Low Dose Dexamethasone Suppression Test—1 mg Ahmet Bahadir Ergin1 , Amir H. Hamrahian1 , A….
Assay for Cortisol: Chemiluminescence Immunoassay (CLIA) . Precautions: None. Interpretation: Serum cortisol concentration > 1.4–1.8 µg/dl after 2 day low dose dex is strongly suggestive of Cushing’s syndrome [1]. Caveats: Use of…
