USMLE Step 1

Hemophilia A is the most common type of hemophilia. Which of the following is a characteristic of Hemophilia A?

A) autosomal dominant
B) autosomal recessive
C) factor IX deficiency
D) bleeding time prolonged
E) aPTT prolonged

check back tomorrow for your answer.

Yesterday's Answer:
D) Metronidazole. Mr. D was treated with a broad spectrum antibiotic for his bronchopneumonia. He developed pseudomembranous colitis from the antibiotic use. Pseudomembranous colitis is caused by an overgrowth of clostridium difficile. It is characterized by fever, bloody diarrhea, and abdominal pain. The drug of choice for clostridium difficile is metronidazole.