For the uninitiated, Kaplan’s Question of the Day (QOTD) is a free (or subscription-based, depending on the platform iteration) daily email or mobile notification that delivers one USMLE Step 1-style multiple choice question to your inbox or phone.

: A common high-yield question focuses on Vitamin C deficiency (Scurvy) . Vitamin C acts as a critical cofactor for the hydroxylation of preprocollagen (specifically proline and lysine residues) within the rough endoplasmic reticulum.

A) Myocardial infarction

A) Ectopic pregnancy