USMLE Forum Archives - USMLE Step 3 - critical care medicine: q4
critical care medicine: q4
zkadhem - 05-21-09 23:31
Q.4. A 70-year-old patient who collapsed in a nursing home is brought to the emergency department. His temperature is 36.0° C, pulse 100, and blood pressure is initially 75/40. He is obtunded and requires intubation for airway protection. Initial laboratory data shows blood glucose of 800. His initial creatinine kinase is 300 with an MB index of 5%. His urinalysis shows pyuria. A pulmonary artery catheter is
placed in the intensive care unit and the following values are obtained: Cardiac index, 2.3 L/min/m2; pulmonary artery occlusion pressure, 6 mm Hg; Systemic vascular resistance (indexed to BSA), 3000 mm Hg min/L·m2. These readings suggest that his condition is most consistent with
A. Septic shock
B. Hypovolemic shock
C. Cardiogenic shock
D. Anaphylaxis
zkadhem - 05-21-09 23:31
Q.4. A 70-year-old patient who collapsed in a nursing home is brought to the emergency department. His temperature is 36.0° C, pulse 100, and blood pressure is initially 75/40. He is obtunded and requires intubation for airway protection. Initial laboratory data shows blood glucose of 800. His initial creatinine kinase is 300 with an MB index of 5%. His urinalysis shows pyuria. A pulmonary artery catheter is
placed in the intensive care unit and the following values are obtained: Cardiac index, 2.3 L/min/m2; pulmonary artery occlusion pressure, 6 mm Hg; Systemic vascular resistance (indexed to BSA), 3000 mm Hg min/L·m2. These readings suggest that his condition is most consistent with
A. Septic shock
B. Hypovolemic shock
C. Cardiogenic shock
D. Anaphylaxis
The correct answer and explanation will be available after you answer.
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#11
Re: critical care medicine: q4 mtniharika - 09-14-09 14:27 someone enlighten abt the normal values with pulmonary artery catheter to differentiate these conditions
#18
Re: critical care medicine: q4 babbu5508 - 08-30-10 03:21 My answer is: b.
Cardiac index, 2.3 L/min/m2; pulmonary artery occlusion pressure, 6 mm Hg; Systemic vascular resistance (indexed to BSA), 3000 mm Hg min/L·m2.
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