NR 283 – Exam 2 Practice Questions Study Guide, Chamberlain University Latest Edition (2026)

NR 283 EXAM 2 – CHAMBERLAIN COLLEGE OF
NURSING LATEST EDITION PRACTICE QUESTIONS
WITH CORRECT AND VERIFIED ANSWERS

Tachycardia - ans-abnormally rapid heart rate - above 100
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Bradycardia - ans-abnormally slow heart rate - under 60
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preload - ans-volume of blood in ventricles at end of diastole
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Afterload - ans-resistance against which left ventricle pushes blood out
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Systole - ans-contraction of heart
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Diastole - ans-relaxation of heart. ... required for filling chambers
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When is preload increased? - ans-
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hypervolemia, regurgitation of cardiac valves, heart failure
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When is afterload increased? - ans-hypertension, vasoconstriction
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What increases when afterload increases? - ans-increase in cardiac workload
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What is cardiac output? - ans-Volume of blood ejected by the heart in one minute:
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cardiac output = heart rate x stroke volume
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What is stroke volume? - ans-Volume of blood pumped out of ventricle- contraction
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The heart sound, lubb is due to the
ws ws ws ws ws ws ws ws . - ans-closure of AV valves
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The heart sound, dub is due to the
ws ws ws ws ws ws ws ws . - ans-closure of semilunar valves.
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pulse rate - ans-heart rate 60-100 bpm.
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What do vasodilators do? - ans-
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dilates (opens) blood vessels, which allows blood to flow more easily
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example: nitroglycerin ws

, What do beta blockers do? - ans--decrease heart rate and blood pressure
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-treat HTN & dysrhythmias
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-reduce angina attacks ws ws




arteriosclerosis - ans-hardening of blood vessels ws ws ws ws ws




Atherosclerosis - ans- ws ws


plaque build up in the coronary artery causing clots, often leads to MI.
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Diuretics - ans- ws ws


medications administered to increase urine secretion in order to remove excess sodi
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um and/or water.
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- treats high blood pressure and congestive heart failure
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anticoagulant - ans-a drug that prevents clotting of the blood
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low-density lipoprotein (LDL) - ans-Transports cholesterol from liver to cells
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Major factor contributing to atheroma formation
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High-density lipoprotein (HDL) - ans- ws ws ws ws


Transports cholesterol away from the peripheral cells to liver—"good" lipoprotein
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Catabolism in liver and excretion ws ws ws ws




angina pectoris - ans- when the heart
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chest pain that results brief episodes ofdoes not get enough oxygen -
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recurrent, intermittent
ws substernal chest pain
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unstable angina - ans-prolonged chest pain at rest
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Stable angina - ans- ws ws ws


chest pain that occurs when a person is active or under severe stress
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Nitroglycerin - ans- ws ws


A drug that helps to dilate the coronary vessels that supply the heart muscle with bl
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ood.

Warning signs of a heart attack - ans-
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Feeling of pressure, heaviness, or burning in chest -
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especially with increased activity
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Sudden shortness of breath, weakness, fatigue
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Nausea, indigestion ws


Anxiety and fear ws ws ws


Pain may occur and if present is usually
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Substernal
Crushing