USMLE Forum Archives - USMLE Step 2 CK - IM 27
IM 27
Brainlab - 12-11-06 16:52
A 79-year-old man, weighing 75 kg, with emphysema is intubated in the intensive care unit because of respiratory failure after developing adult respiratory distress syndrome secondary to an Escherichia coli bacteremia after an untreated urinary tract infection. His ventilator is set to a respiratory rate of 20/min, a tidal volume of 750 mL/breath, and a pO2 of 100%. If these settings are continued for the next 72 hours, the patient is at most increased risk for the development of which of the following complications?
A. Congestive heart failure
B. Jugular venous distention
C. Pulmonary embolus
D. Pulmonary fibrosis
E. Tension pneumothorax
Brainlab - 12-11-06 16:52
A 79-year-old man, weighing 75 kg, with emphysema is intubated in the intensive care unit because of respiratory failure after developing adult respiratory distress syndrome secondary to an Escherichia coli bacteremia after an untreated urinary tract infection. His ventilator is set to a respiratory rate of 20/min, a tidal volume of 750 mL/breath, and a pO2 of 100%. If these settings are continued for the next 72 hours, the patient is at most increased risk for the development of which of the following complications?
A. Congestive heart failure
B. Jugular venous distention
C. Pulmonary embolus
D. Pulmonary fibrosis
E. Tension pneumothorax
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#1
Re: IM 27 drs_kh - 12-12-06 04:12 I think correct answer is D, oxygen toxicity is seen after administering 100% pO2 more than 48 hours.
#4
Re: IM 27 babbu5508 - 07-07-10 22:11 D. Pulmonary fibrosis
Complications
Chronic hypoxemia
Cor pulmonale
Pneumothorax
Polycythemia
Pulmonary hypertension
Respiratory failure
#5
Re: IM 27 bingousmle - 07-11-10 02:31 this patient is suffering from emphsema so with ventilator settings of respiratory rate of 20/min, a tidal volume of 750 mL/breath, and a pO2 of 100%. continued for the next 72 hours, he is likely to develop pulmonaryfibrosis
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