What is a common cause of persistent fever in intensive care unit (ICU) patients with pneumo-nia?
a. Congestive heart failure
b. Most exudative effusions
c. Parapneumonic effusions
d. Transudative effusions
ANS: C
Parapneumonic effusions are common causes of persistent fever among ICU patients with pneu-monia. Sampling by thoracentesis is commonly performed to exclude empyema. Pleural fluid drainage can improve ventilation if the fluid volume is large.
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