Lab Med 211-225 (only two cards included)

Question 1

What is the serum 17-alpha-hydroxyprogesterone test used for?

Answer 1

To diagnose congenital adrenal hyperplasia

If serum 17-alpha-hydroxyprogesterone high = positive

Question 2

What is the short (overnight) dexamethasone supression test?

Answer 2

Give dexa at night, measure cortisol in morning

Cortisol suppressed = normal

Cortisol elevated = possible Cushing’s