EMT211 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS

Anaphylactic shock is characterized by: a. labored breathing and hypertension. b. wheezing and widespread vasodilation. c. intracellular hypovolemia and hives. d. a deficiency of circulating histamines. correct answer: b. wheezing and widespread vasodilation Distributive shock occurs when: a. central vasoconstriction forces blood from the core of the body. b. blood pools in expanded vascular beds and tissue perfusion decreases. c. microorganisms attack the blood vessels, resulting in vasodilation. d. a significant decrease in cardiac contractility causes decreased perfusion. correct answer: b. blood pools in expanded vascular beds and tissue perfusion decreases. Baroreceptors, which are located in the carotid artery, aorta, and kidneys, are MOST sensitive to changes in: a. fluid volume. b. blood pressure. c. acid-base balance. d. sodium concentrations. correct answer: b. blood pressure. Scenario: A patient is presenting with rapid onset hypotension, tachycardia, and absent radial pulses. Which type of shock is LEAST likely to be the cause? a. cardiogenic. b. septic. c. hypovolemic. d. neurogenic. correct answer: d. neurogenic. Scenario: A patient was shot in the abdomen and has a resultant massive hemorrhage and hypoperfusion. Intravenous therapy would help treat the hypoperfusion by: a. increasing vasoconstriction. b. increasing preload. c. increasing afterload. d. increasing the heart rate. correct answer: b. increasing preload. Red blood cell oxygen saturation level is NOT dependent on a. the shape of the red blood cells. b. the oxygen level of the environment. c. the health of the respiratory system. d. the volume of cardiac output. correct answer: d. the volume of cardiac output. Which of the following is NOT one of the three parts of the control mechanisms that maintain homeostasis? a. Receptor b. Stabilizer c. Control center d. Effector correct answer: b. Stabilizer The MOST common cause of cardiogenic shock is: a. untreated hypertension. b. blunt force chest trauma. c. acute myocardial infarction.