Infectious Diseases Practice Questions

Question 1

HIV patient presented with diarrhea. On stool examination, acid-fast organisms (Isospora belli) were seen. What is the drug of choice in this patient?

Accepted Answer

TMP-SMX

Answer

Niclosamide

Answer

Nitazoxanide

Answer

Primaquine

Question 2

A cluster of pneumonia cases is reported from a city with high mortality rate. Sputum cultures show gram-negative coccobacilli resistant to multiple antibiotics including carbapenems. Gene sequencing reveals blaNDM-1. What is the most critical factor contributing to this emerging resistance?

Accepted Answer

Horizontal gene transfer through plasmids

Answer

Point mutations in chromosomal DNA

Answer

Decreased porin expression

Answer

Efflux pump mechanisms only

Question 3

Which of the following are components of SOFA scoring system?
I. PaO_2 / FiO_2 ratio
II. Mean arterial pressure
III. Glasgow coma scale
IV. Prothrombin Time with INR

Select the correct answer using the code given below :

Accepted Answer

I, III and IV

Answer

I, II and IV

Answer

II, III and IV

Answer

I, II and III

Question 4

A 45-year-old woman with severe pneumonia is prescribed gentamicin. Her serum creatinine is 0.9 mg/dL and creatinine clearance is 95 mL/min. Laboratory monitoring shows a trough level of 3.2 μg/mL (therapeutic range: <2 μg/mL). Apply pharmacokinetic principles to determine the most appropriate management.

Accepted Answer

Increase the dosing interval while maintaining the same dose

Answer

Decrease the dose while maintaining the same dosing interval

Answer

Add a second antibiotic and discontinue gentamicin

Answer

Continue current regimen as levels are within acceptable range

Answer

Switch to continuous infusion of gentamicin

Question 5

Which of the following diseases is characterized by propagative transmission?

Accepted Answer

All of the options

Answer

Filaria

Answer

Plague

Answer

Malaria

Question 6

Incidence of Pneumocystis jiroveci pneumonia has declined in recent times due to which of the following?

Accepted Answer

Prophylactic use of trimethoprim-sulfamethoxazole

Answer

Better living conditions

Answer

Decrease in the incidence of HIV infection

Answer

Stronger immunity of the general population

Question 7

What is the rapid test recommended by WHO for the diagnosis of tuberculosis?

Accepted Answer

Sputum AFB smear microscopy

Answer

Quantiferon gold

Answer

ELISPOT

Answer

Xpert MTB

Question 8

All of the following infections may be transmitted via blood transfusion, except?

Accepted Answer

Dengue virus

Answer

Parvovirus B-19

Answer

Cytomegalovirus

Answer

Hepatitis G virus

Question 9

Which of the following infections is not transmitted by arthropods?

Accepted Answer

Q fever

Answer

Rickettsial pox

Answer

Rocky mountain spotted fever

Answer

Relapsing fever

Question 10

Which of the following is false about Brucellosis?

Accepted Answer

Ampicillin is the antibiotic of choice

Answer

Also known as undulant fever

Answer

B. melitensis is the most virulent species

Answer

The incubation period is typically 1-3 weeks

Infectious Diseases

Study Resources

Lessons

Questions

Flashcards

Lessons

Respiratory Tract Infections

Urinary Tract Infections

Gastrointestinal Infections

Skin and Soft Tissue Infections

Central Nervous System Infections

Bone and Joint Infections

Cardiovascular Infections

Sexually Transmitted Infections

Zoonotic Infections

Bloodstream Infections and Sepsis

Fever of Unknown Origin

Infections in Immunocompromised Host

Practice Questions

Flashcards

About Infectious Diseases for NEET-PG

Lessons in Infectious Diseases

Master Infectious Diseases