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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 37-year-old man is brought to the emergency department following a motor vehicle collision. His temperature is 38.1°C (100.6°F), pulse is 39/min, respirations are 29/min, and blood pressure is 58/42 mm Hg. There is no improvement in his blood pressure despite adequate fluid resuscitation. A drug is administered that causes increased IP3 concentrations in arteriolar smooth muscle cells and increased cAMP concentrations in cardiac myocytes. This drug only has a negligible effect on cAMP concentration in bronchial smooth muscle cells. Which of the following sets of cardiovascular changes is most likely following administration of this drug?
 $$$ Cardiac output %%% Mean arterial pressure %%% Systemic vascular resistance $$$
assistant
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