Review PSBIM

Question 1

necrotizing fasciitis

Answer 1

S.pyogenes from transient bacteremia caused by a non-penetrating minor injury

Question 2

Focal findings on MRI, esp. those involving the temporal lobe, in a patient with encephalitis suggest

Answer 2

HSV as the aetiology

Question 3

Effect of giving antibiotics to a patient with suspected enterohemorrhagic E. coli diarrhea

Answer 3

Increased production of Shiga toxin

Question 4

MC agent travelers diarrhea

Answer 4

ETEC

Question 5

Malaria can invade erythrocytes of all ages. Younger ring forms are seen in RBCs.

Answer 5

P. falciparum
P. vivax and P. ovale– young RBCs
P. malariae– old RBCs

Question 6

administered as a single 3 g oral dose, is used primarily for prophylaxis and treatment of urinary tract infections because of its activity against a wide range of gram positive and gram negative organisms

Answer 6

Fosfomycin

Question 7

most common focal complication of pneumococcal pneumonia

Answer 7

Empyema

Question 8

most serious complication following varicella

Answer 8

Varicella pneumonia

Question 9

ost common infectious complication varicella

Answer 9

secondary bacterial infection of the skin