If a patient's peripheral arteries constrict due to hypothermia, which consequence follows regarding mean arterial pressure?

💡 Explanation

Peripheral artery constriction increases total peripheral resistance (TPR). Because mean arterial pressure (MAP) is the product of cardiac output and TPR, the MAP increases. Therefore, the correct answer is that it will increase due to TPR increase, rather than a primary change in cardiac output or stroke volume.

• An athlete performs repeated high-intensity exercises, leading to increased cardiac muscle mass and contractility. What happens to the ejection fraction when the heart adapts through structural remodeling?
• Why does prolonged exposure to synthetic progestins increase osteoporosis risk in postmenopausal women?
• An individual consumes excessive salt, disrupting electrolyte balance. Which mechanism explains why increased water reabsorption occurs in the kidney's collecting duct?
• Which consequence results when systemic capillary leak develops due to endothelial cell glycocalyx degradation?
• If a deep dermal wound in a patient with peripheral vascular disease develops a chronic non-healing ulcer, which consequence is the MOST likely to prolong the inflammatory phase?
• If a drug with a high volume of distribution (Vd) is administered intravenously but encounters extensive binding to plasma proteins, which consequence follows for its overall effect?