Endocrinology 1
Most common cause of hypoparathyroidism
Neck surgery–associated injury
Test for vitamin D sufficiency
25-Hydroxyvitamin D measurement
Universal vitamin deficiency after bariatric surgery
Vitamin D
Most common cause of hirsutism/androgen excess in women
PCOS
Waist circumference associated with increased risk for DM, ASCVD, and mortality
>40 inches in men, >35 inches in women
Imaging test for thyroid nodule with normal TSH
Ultrasonography
Empiric levothyroxine dose change during pregnancy
30% increase
Timing of infertility evaluation in women <35 years
≥1 year of regular unprotected intercourse
First step in evaluation of female infertility
Assessment of ovulatory function
Test following male hypogonadism diagnosis
LH and FSH levels
Invasive test to confirm source of hyperaldosteronism
Adrenal vein sampling
Prolactin level suggestive of macroprolactinoma
>200 ng/mL
Diagnosis suggested by thionamide use, fever, sore throat
Agranulocytosis
Vitamin that interferes with thyroid function assay
Biotin
Diagnosis suggested by small/absent pituitary gland on MRI
Empty sella syndrome
Treatment following adrenalectomy for Cushing syndrome
Glucocorticoid replacement
Diagnosis suggested by low cortisol, elevated ACTH
Primary adrenal insufficiency
Initial imaging test for ACTH-independent Cushing syndrome
Adrenal CT or MRI
Order of drugs for treating adrenal crisis and hypothyroidism
Hydrocortisone, then thyroid hormone replacement
First drug administered in treatment of myxedema coma
Hydrocortisone
Diagnosis suggested by hyperthyroidism, elevated TSH, and elevated free T4
TSH-secreting pituitary tumor
Screening test for mild autonomous cortisol secretion in adrenal incidentaloma
1-mg overnight dexamethasone suppression test
Indication for insulinoma localization imaging in hypoglycemia
After confirmation of endogenous hyperinsulinism
Drug class associated with euglycemic ketoacidosis
SGLT2 inhibitors
Endocrine adverse effect of checkpoint inhibitor drugs
Hypophysitis