NR 283 Exam 2 - Chamberlain verified questions with correct
answers A+ Grade 2026\2027
Tachycardia
- correct answer abnormally rapid heart rate - above 100
Bradycardia
- correct answer abnormally slow heart rate - under 60
preload
- correct answer volume of blood in ventricles at end of diastole
Afterload
- correct answer resistance against which left ventricle pushes blood out
Systole
- correct answer contraction of heart .... provides increase in pressure to eject blood
Diastole
- correct answer relaxation of heart.... required for filling chambers
When is preload increased?
- correct answer hypervolemia, regurgitation of cardiac valves, heart failure
When is afterload increased?
- correct answer hypertension, vasoconstriction
What increases when afterload increases?
- correct answer increase in cardiac workload
,What is cardiac output?
- correct answer Volume of blood ejected by the heart in one minute:
cardiac output = heart rate x stroke volume
What is stroke volume?
- correct answer Volume of blood pumped out of ventricle- contraction
The heart sound, lubb is due to the _________ .
- correct answer closure of AV valves
The heart sound, dub is due to the ________.
- correct answer closure of semilunar valves.
pulse rate
- correct answer heart rate 60-100 bpm.
What do vasodilators do?
- correct answer dilates (opens) blood vessels, which allows blood to flow more easily
example: nitroglycerin
What do beta blockers do?
- correct answer -decrease heart rate and blood pressure
-treat HTN & dysrhythmias
-reduce angina attacks
arteriosclerosis
- correct answer hardening of blood vessels
Atherosclerosis
- correct answer plaque build up in the coronary artery causing clots, often leads to MI.
, Diuretics
- correct answer medications administered to increase urine secretion in order to remove excess sodium
and/or water.
- treats high blood pressure and congestive heart failure
anticoagulant
- correct answer a drug that prevents clotting of the blood
low-density lipoprotein (LDL)
- correct answer Transports cholesterol from liver to cells
Major factor contributing to atheroma formation
High-density lipoprotein (HDL)
- correct answer Transports cholesterol away from the peripheral cells to liver—"good" lipoprotein
Catabolism in liver and excretion
angina pectoris
- correct answer chest pain that results when the heart does not get enough oxygen - recurrent,
intermittent brief episodes of substernal chest pain
unstable angina
- correct answer prolonged chest pain at rest
Stable angina
- correct answer chest pain that occurs when a person is active or under severe stress
Nitroglycerin
- correct answer A drug that helps to dilate the coronary vessels that supply the heart muscle with
blood.
Warning signs of a heart attack
- correct answer Feeling of pressure, heaviness, or burning in chest - especially with increased activity
Sudden shortness of breath, weakness, fatigue
answers A+ Grade 2026\2027
Tachycardia
- correct answer abnormally rapid heart rate - above 100
Bradycardia
- correct answer abnormally slow heart rate - under 60
preload
- correct answer volume of blood in ventricles at end of diastole
Afterload
- correct answer resistance against which left ventricle pushes blood out
Systole
- correct answer contraction of heart .... provides increase in pressure to eject blood
Diastole
- correct answer relaxation of heart.... required for filling chambers
When is preload increased?
- correct answer hypervolemia, regurgitation of cardiac valves, heart failure
When is afterload increased?
- correct answer hypertension, vasoconstriction
What increases when afterload increases?
- correct answer increase in cardiac workload
,What is cardiac output?
- correct answer Volume of blood ejected by the heart in one minute:
cardiac output = heart rate x stroke volume
What is stroke volume?
- correct answer Volume of blood pumped out of ventricle- contraction
The heart sound, lubb is due to the _________ .
- correct answer closure of AV valves
The heart sound, dub is due to the ________.
- correct answer closure of semilunar valves.
pulse rate
- correct answer heart rate 60-100 bpm.
What do vasodilators do?
- correct answer dilates (opens) blood vessels, which allows blood to flow more easily
example: nitroglycerin
What do beta blockers do?
- correct answer -decrease heart rate and blood pressure
-treat HTN & dysrhythmias
-reduce angina attacks
arteriosclerosis
- correct answer hardening of blood vessels
Atherosclerosis
- correct answer plaque build up in the coronary artery causing clots, often leads to MI.
, Diuretics
- correct answer medications administered to increase urine secretion in order to remove excess sodium
and/or water.
- treats high blood pressure and congestive heart failure
anticoagulant
- correct answer a drug that prevents clotting of the blood
low-density lipoprotein (LDL)
- correct answer Transports cholesterol from liver to cells
Major factor contributing to atheroma formation
High-density lipoprotein (HDL)
- correct answer Transports cholesterol away from the peripheral cells to liver—"good" lipoprotein
Catabolism in liver and excretion
angina pectoris
- correct answer chest pain that results when the heart does not get enough oxygen - recurrent,
intermittent brief episodes of substernal chest pain
unstable angina
- correct answer prolonged chest pain at rest
Stable angina
- correct answer chest pain that occurs when a person is active or under severe stress
Nitroglycerin
- correct answer A drug that helps to dilate the coronary vessels that supply the heart muscle with
blood.
Warning signs of a heart attack
- correct answer Feeling of pressure, heaviness, or burning in chest - especially with increased activity
Sudden shortness of breath, weakness, fatigue
