Which of the following is true regarding bronchoalveolar lavage (BAL) fluids?
a. The differential is not done on these fluids.
b. It is often received from patients suspected of having asthma.
c. Moving ciliated cells suggest that the patient has Pneumocystis carinii.
d. A mask should be worn when performing tests.
ANS: D
BAL examination is performed on patients with severe lung dysfunction. They may contain airborne organisms because they are taken from the interior of the lung; they often contain bacteria and/or yeast when cytocentrifuge slides are examined. Aerosol production is a real risk; thus it is critical to wear a mask when working with these specimens.
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