Infectious Disease

Question 1

Pericardial calcifications and worsening dyspnea

Answer 1

Tuberculosis constrictive pericarditis

Question 2

Chemoprophylaxis and asymptomatic patient with tuberculosis

Answer 2

Isoniazid plus pyridoxine for nine months

Question 3

Sequealea for group a strep impetigo vs pharyngitis

Answer 3

Impetigo: post strep GN

Pharyngitis : post strep GN or rheumatic disease (though rheumatic dz is more common)

Question 4

Medication that cause vivid or bizarre dreams in HIV patients

Answer 4

Efavirenz

Question 5

Lamivudine side effects

Answer 5

Fewer than most other HIV drugs

Hepatotoxicity may occur

Question 6

Pancreatitis from HIV drug

Answer 6

Didanosine

Question 7

Cut off for PPD testing

Answer 7

> 5mm. In HIV, recent contact with no TB, immunosuppressed
10mm. Recent immigrant from TB endemic area, IV drug user, residence and employees of high-risk settings (nursing homes, hospitals), children under four
15mm: healthy individuals without exposure

Question 8

Bacterial infection after viral URI that causes necrotizing pulmonary bronchopneumonia with multiple nodular infiltrates that cavitate to cause small abscesses is caused by what bacteria

Answer 8

Staph aureus

Question 9

What is myringitis? How is it diagnosed and what are common causes

Answer 9

Inflammation of the tympanic membrane.
Aotoscope result reveals vesicles on tympanic membrane.
Caused by Mycoplasma species but streptococcus pneumonia or viruses can also cause. Treat with erythromycin or claromycin

Question 10

Treatment for disseminated histoplasmosis

Answer 10

Itraconazole for mild to moderate cases and Amphotericin in severe case

Question 11

What type of prophylaxis should be given in febrile neutropenia

Answer 11

Monotherapy with anti-pseudomonal beta-lactam agent provides both gram-negative and gram-positive coverage and is recommended initial.
Examples include cefepime, meropenem and pipercillin tazobactam