Infectious Disease MCQ Answer 30

The answer is E.

A patient over 50 years of age, with a febrile disease associated with a sudden elevation of temperature after a sharp chill, with chest pain, cough productive of blood-tinged sputum, elevated leukocyte count with neutrophilia, and a confirmatory X-ray showing consolidating lobar pneumonia has most likely pneumococcal pneumonia.

The X-ray patterns in Mycoplasma and Pneumocystis carinii pneumonia are very different, showing bilateral insterstitial infiltrates and no consolidation. Anaerobic pneumonia is seen in totally different clinical contexts and the chest X ray typically shows lung abscesses with gas.

Klebsiella pneumoniae pneumonia is often associated with hemoptysis (currant jelly sputum) and the chest X-ray findings include bulging interlobar fissure and cavitary abscesses. Klebsiella pneumoniae is also extremely rare as a cause of community-acquired pneumonia in the USA accounting for <1%

Tags: Geriatric Quiz, Pneumonia

Category: Infectious Diseases MCQs