Answer: A, B, C, D
In addition to sudden onset of SOB six months ago, the patient complained of 60 lbs weight loss and dry cough. An outside hospital previously diagnosed her with emphysema given similar radiographic findings. The patient reports only minor smoking history.
Fearing the possibility of occult malignancy with associated thromboembolism, the emergency department ordered a d-dimer, which came back elevated (1650 ng/mL, normal < 250 ng/mL). How should this result be interpreted?
A) Positive for pulmonary embolism
B) Negative for pulmonary embolism
C) Not negative for pulmonary embolism
D) Not positive for pulmonary embolism
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