A 60-Year-Old Man Undergoes a Right Lung Biopsy for Diagnosis

A 60-year-old man undergoes a right lung biopsy for diagnosis of restrictive lung disease.  Two hours after the procedure, he develops severe shortness of breath and chest pain.  His other medical problems include hypertension, hyperlipidemia, pernicious anemia, and an inguinal hernia repair 10 years ago.  The patient does not smoke and drinks alcohol only occasionally.  Blood pressure is 70/40 mm Hg, pulse is 118/min, and respirations are 30/min.  He is diaphoretic, and the skin is cold and clammy.  Pupils are equal and reactive to light bilaterally.  Intraarterial blood pressure monitoring is established, and pulmonary artery catheterization is performed.  Initial measurements are as follows: Which of the following is the most likely diagnosis in this patient?

A) Anaphylaxis
B) Myocardial infarction
C) Noncardiogenic pulmonary edema
D) Pulmonary artery embolism
E) Pulmonary parenchymal hemorrhage
F) Septic shock
G) Tension pneumothorax
H) Volume depletion

Correct Answer:

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