Exam 2: NR341 / NR 341 (Latest
Update 2025 / 2026) Complex Adult Health | Questions & Answers | Grade A | 100% Correct - Chamberlain
Question:
Factors affecting heart rate include
Answer:
the autonomic nervous system, temperature, certain medications
Question:
Factors affecting stroke volume include
Answer:
preload, afterload, and contractility
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Question:
Preload
Answer:
VOLUME
of blood in ventricles at end of diastole, before the next contraction
it determines the amount of stretch placed on the myocardial fibers
Question:
Preload (CVP and PAP) decreases with (what shock)
Answer:
hypovolemia shock anaphylactic shock septic chock
Question:
preload (CVP and PAP) increases with (what shock)
Answer:
cardiogenic shock obstructive shock
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Question:
Preload Treatment
Answer:
Aldosterone antagonists, diuretics, decrease Na+ and fluid intake
Question:
Afterload
Answer:
The force or resistance against which the heart pumps.
Question:
afterload increased in
Answer:
hypertension, vasoconstriction
Question:
Afterload decreases with
Answer:
vasodilation and dehydration.
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Question:
Afterload Treatment
Answer:
ACE inhibitors, ARBs, Beta Blockers
Question:
positive inotropic agents
Answer:
substances that increase contractility
Question:
Central Venous Pressure (CVP)
Answer:
reflects the amount of blood returning to the heart and the ability of the heart to pump the blood into the arterial system
**measurement of preload right side of heart 2-6 mmHg
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