USMLE Step 1

An old man is found in the basement of his house. He was on the floor with rigor mortis setting in. What is the mechanism responsible for rigor mortis?

A) He overdosed on Baclofen
B) Increase in ATP production before he died
C) Myocyte death
D) Depletion of ATP
E) Myosin cross-bridge detachment


check back tomorrow for your answer.

Yesterday's Answer:
A) Pyrimethamine-sulfadiazine. This patient is experiencing Toxoplasma encephalitis caused by toxoplasma gondii. It is a common dementia in full blown AIDS. Drug of choice for toxoplasma is Pyrimethamine-sulfadiazine. Answer D is the D.O.C. for Pneumocystis carinii. Answer E is the D.O.C. for M. avium complex.