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发帖数: 37 | 1 45. A 32-year-old woman comes to the physician because of a 4-month history
of fatigue, cough, and shortness of breath with exertion. She has had two
episodes of pneumonia and one episode of severe sinusitis over the
past 2 years. She has never smoked. She takes no medications. Crackles are
heard at the left lung base. An x-ray film of the chest shows a left lower
lobe infiltrate and scarring of the right base.
A) Measurement of serum a1-antitrypsin level
B) Methacholine challenge test
C) Quantitative measurement of serum antibody levels
D) Sweat chloride test
E) Ventilation-perfusion lung scans
What's the answer? Why? How to differentiate between C and D? | h**s
发帖数: 1757 | 2 it is C.
this patients is 32 . Kind of old for CF, but it is a good age for common
variable immunodeficiency. |
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