Showing posts with label usmle mcq's. Show all posts
Showing posts with label usmle mcq's. Show all posts

Wednesday, July 23, 2014

Regarding SLE

Which of the following Antibody titer is helpful in determining flare ofSLE?

a)ANA
b)Anti Smith
c)Anti dsDNA
d)Anti SSA
e)Anti SSB

Answer: c) Anti dsDNA

Sunday, July 20, 2014

40 Year old smoker

A 40yearold smoker presented to  the A & E department with sudden onset of  severe shortness of breath, his respiratory rate was 36/min, O2 Saturation at room air was 82%,heart rate 136/min, Blood pressure 80/55 mmhg. He was profusely sweating, neck veins were distended, on auscultation there was reduced air entry on  the right hemithorax.

What is the most appropriate next best step

a)Do a Chest Xray
b)Insert a partially saline filled syringe at right 2nd I.C Space
c)Call to arrange a chest drain
d)CT Chest
e)Give Streptokinase

Answer : B)Insert a partially saline filled syringe at right 2nd I.C Space. (case of tension pneumothorax. This needs  to be done even before ordering a chest xray.)

Thursday, July 10, 2014

Sleep Apnoea

How many episodes of apnoea or hypopnea are required in 1hour of sleep to indicate significant Sleep Apnoea

a)5
b)10
c)15
d)20
e)25


Answer : C) 15