Cardiac output decreases during: (A) Moderate increase in environmental temperature, (B) Anxiety and excitement, (C) Eating, (D) Standing from lying down position
Answer is D. Ans. (d) Standing from lying down positionRef: Ganong, 25th ed/p.544Cardiac output changesNo change:SleepIncreases during:Anxiety and excitement (50-100%)Eating (30%)Exercise (up to 700%)High environmental temperaturePregnancyEpinephrineDecreases during:Standing from lyingHeart diseases