Which information does the professor teach the class regarding how a child's body compensates for cardiogenic shock? (Select all that apply.)
A)Splanchnic arteries are constricted to divert blood from the skin, kidneys, and gut to the heart and brain.
B)Peripheral blood vessels are constricted to raise blood pressure.
C)Adrenergic responses produce tachycardia to increase cardiac output.
D)The renin-angiotensin-aldosterone system is stimulated when renal function decreases.
E)Compensation prevents the child from developing hepatic or mesenteric failure.

Question

Quizplus · Accepted Answer

In the early stages of cardiogenic shock, adrenergic compensatory mechanisms produce tachycardia, peripheral vasoconstriction, and constriction of the splanchnic arteries to divert blood flow from the skin, gut, and kidneys to maintain flow to the heart and brain. These compensatory mechanisms may be sufficient to maintain the child's systolic blood pressure and effective coronary artery and cerebral blood flow. However, tachycardia and systemic arterial constriction increase myocardial oxygen consumption. In addition, reduction in gut and kidney blood flow may produce hepatic, mesenteric, or renal ischemia or failure. Decreased renal perfusion stimulates the renin-angiotensin-aldosterone system, as described for hypovolemic shock.

Which Information Does the Professor Teach the Class Regarding How