Week 30: CNS Infection

Question 1

Gram positive is…

Answer 1

Purple

Question 2

What tests should a person who injects drugs have done while in the hospital?

Answer 2

Hep C, HIV, Hep B

Question 3

Rash on palms and soles of feet. What is it?

Answer 3

Syphilis

Question 4

Physical sx of 3 stages of syphilis

Answer 4

1: painless chancre (aka ulcer) in site of exposure
2: rash distributed (classically palms and soles)
3: neurosyphilis

Question 5

What is the antibiotic of choice for a syphilis infection?

Answer 5

Penicillin

Question 6

Best test for very early HIV infection

Answer 6

PCR (i.e., testing viral load - finds the HIV RNA load in the plasma)

Question 7

If a 4th generation EIA is negative and the patient believes that they were exposed 2 weeks ago, do they have HIV?

Answer 7

We don’t know yet because it can take up to 1.5 months for the 4th generation EIA to detect infection.

Question 8

Best test to diagnose suspected TB infection

Answer 8

AFB stain, culture and drug susceptibility testing

Question 9

Antibiotics or TB are…

Answer 9

Isoniazid, rifampin, ethambutol, pyrazinamide all get started at once