A 40-year-old man is brought to the emergency department due to 5 episodes of bloody emesis. He also describes epigastric pain over the last month that was relieved by over-the-counter antacids. He has a history of alcohol disorder. The patient has smoked a pack of cigarettes daily for the last 15 years. Blood pressure is 80/45 mm Hg and pulse is 130/min and regular. Extremities are cool to the touch with loss of skin turgor. Intravenous access is obtained via 2 large-bore peripheral catheters, and rapid infusion of 2 liters of normal saline is initiated. This intervention is most likely to increase which of the following hemodynamic parameters?

Question

Quizplus · Accepted Answer

Eductional Objective: Intravenous fluids increase the intravascular and left ventricular end-diastolic volumes. The increase in preload stretches the myocardium and increases the end-diastolic sarcomere length, leading to an increase in stroke volume and cardiac output by the Frank-Starling mechanism.

A 40-Year-Old Man Is Brought to the Emergency Department Due