Tennessee medicine : journal of the Tennessee Medical Association
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Review Case Reports
Is the cosyntropin test redundant in the acutely ill patient suspected of adrenal insufficiency? A case report and literature review.
Relative adrenal insufficiency is an increasingly documented phenomenon in acute illness. Recognizing and treating such adrenal insufficiency has the potential to improve outcome. A post-cosyntropin cortisol value greater than 20 microg/dl has been recognized as consistent with normal adrenal function. ⋯ Pituitary MRI revealed a 7-mm pituitary cyst. Pending the availability of free cortisol levels, it is prudent not to disregard low basal cortisol levels, even in the presence of a normal cosyntropin response. We recommend that clinicians managing acutely ill patients have a low threshold for initiating glucocorticoid replacement in the presence of hypoglycemia and shock regardless of the peak cortisol values.