The resultant increase in preload causes an increase in cardiac output. Perform the passive leg raise by placing the patient in a semirecumbent position with the head of the bed at 45 degrees. Record baseline measurements and then lower the head of the bed and elevate the legs to 45 degrees. Measure stroke volume, cardiac output or cardiac index, or systolic blood pressure within 30 to 90 seconds after raising the legs.
I feel like answer C should be the answer because of the heart rate of 124 beats/minute, respirations of 16 beats/minute, and blood pressure of 75/38 mmHg, which indicate the patient is experiencing a shock.
Here is a note on how I ended up with option C from my critical care textbook: "The passive leg raise is a dynamic and predictive indicator of fluid responsiveness. Blood volume from the lower body is mobilized to the heart and temporarily mimics a fluid bolus during the passive leg raise. The resultant increase in preload causes an increase in cardiac output. Perform the passive leg raise by placing the patient in a semirecumbent position with the head of the bed at 45 degrees. Record baseline measurements and then lower the head of the bed and elevate the legs to 45 degrees. Measure stroke volume, cardiac output or cardiac index, or systolic blood pressure within 30 to 90 seconds after raising the legs.
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