A 22-year-old healthy university student is administered phentolamine as part of a research study. Which of the following sets of findings would be likely to result?
↑ Systemic vascular resistance; ↑ Heart rate; ↓ Inositol triphosphate (IP3)
↑ Systemic vascular resistance; ↓ Heart rate; ↑ Inositol triphosphate (IP3)
↑ Systemic vascular resistance; ↑ Heart rate; ↑ Inositol triphosphate (IP3)
↓ Systemic vascular resistance; ↓ Heart rate; ↑ Inositol triphosphate (IP3)
↓ Systemic vascular resistance; ↑ Heart rate; ↓ Inositol triphosphate (IP3)
↓ Systemic vascular resistance; ↓ Heart rate; ↓ Inositol triphosphate (IP3)
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Cut-to-the-chase Answer (0:42):
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HY USMLE Answer (2:58):
