A patient reports feeling dizzy after standing quickly. Which of the following could provide a clue regarding the cause?
a. Hemoglobin level of 14.0 g/dL and hematocrit level of 42.3%
b. Poor skin turgor with extended tenting
c. Supine blood pressure of 146/93 mm Hg
d. Resting heart rate of 96 beats/min
B
Poor skin turgor could suggest dehydration. Dehydration can cause orthostatic hypotension because of low capacitance reserves from hypovolemia. Supine blood pressure of 146/93 mm Hg would be considered hypertensive, and the patient would most likely experience a headache rather than dizziness. A resting heart rate of 96 beats/min is still considered a normal value.
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