NAPLEX CHF Questions with Correct Answers (Grade A+)
Question 1: heart failure
Answer: inability to supply sufficient oxygenated blood to the body
Question 2: What are the 2 major categories of heart failure?
Answer: ischemic vs. nonischemic
Question 3: How is heart failure diagnosed?
Answer: echocardiogram - look at LV ejection fraction
Question 4: HFrEF
Answer: systolic HF; LVEF <40%
Question 5: HFpEF
Answer: diastolic HF; LVEF >50%
Question 6: normal LVEF
Answer: 55-70%
Question 7: HFmrEF
Answer: EF 41-49%
Question 8: HFimpEF
Answer: LVEF d40% then improves
Question 9: ACC/AHA Stage A
Answer: at risk for HF - HTN, ASCVD, DM, etc.
Question 10: ACC/AHA Stage B
Answer: pre-HF with structural heart disease - LV hypertrophy, low EF, valvular disease, no sx
Question 11: ACC/AHA Stage C
Answer: clinical HF with structural/functional changes and symptoms
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, Question 12: ACC/AHA Stage D
Answer: clinical advanced HF with severe symptoms and recurrent hospitalizations
Question 13: NYHA Class I
Answer: No limitation of physical activity
Question 14: NYHA Class II
Answer: Slight limitations of physical activity but comfortable at rest (physical activity results in fatigue,
palpitations, dyspnea, angina)
Question 15: NYHA Class III
Answer: marked limitation of activity, comfortable only at rest
Question 16: NYHA Class IV
Answer: Symptoms at rest
Question 17: elevated BNP
Answer: >100
Question 18: elevated NT-proBNP
Answer: >300
Question 19: What are s/sx of left sided heart failure?
Answer: orthopnea, paroxysmal nocturnal dyspnea, crackling lungs, S3 gallop, hypoperfusion
Question 20: What are s/sx of right sided heart failure?
Answer: peripheral edema, ascites, JVD, hepatojugular reflux, hepatomegaly
Question 21: cardiac index
Answer: CO/BSA
Question 22: How does the body compensate in HFrEF?
Answer: neurohormonal pathway activation to increase blood volume or force/speed of contractions; leads
to a temporary increase in CO but also cardiac remodeling
Page 2
Question 1: heart failure
Answer: inability to supply sufficient oxygenated blood to the body
Question 2: What are the 2 major categories of heart failure?
Answer: ischemic vs. nonischemic
Question 3: How is heart failure diagnosed?
Answer: echocardiogram - look at LV ejection fraction
Question 4: HFrEF
Answer: systolic HF; LVEF <40%
Question 5: HFpEF
Answer: diastolic HF; LVEF >50%
Question 6: normal LVEF
Answer: 55-70%
Question 7: HFmrEF
Answer: EF 41-49%
Question 8: HFimpEF
Answer: LVEF d40% then improves
Question 9: ACC/AHA Stage A
Answer: at risk for HF - HTN, ASCVD, DM, etc.
Question 10: ACC/AHA Stage B
Answer: pre-HF with structural heart disease - LV hypertrophy, low EF, valvular disease, no sx
Question 11: ACC/AHA Stage C
Answer: clinical HF with structural/functional changes and symptoms
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, Question 12: ACC/AHA Stage D
Answer: clinical advanced HF with severe symptoms and recurrent hospitalizations
Question 13: NYHA Class I
Answer: No limitation of physical activity
Question 14: NYHA Class II
Answer: Slight limitations of physical activity but comfortable at rest (physical activity results in fatigue,
palpitations, dyspnea, angina)
Question 15: NYHA Class III
Answer: marked limitation of activity, comfortable only at rest
Question 16: NYHA Class IV
Answer: Symptoms at rest
Question 17: elevated BNP
Answer: >100
Question 18: elevated NT-proBNP
Answer: >300
Question 19: What are s/sx of left sided heart failure?
Answer: orthopnea, paroxysmal nocturnal dyspnea, crackling lungs, S3 gallop, hypoperfusion
Question 20: What are s/sx of right sided heart failure?
Answer: peripheral edema, ascites, JVD, hepatojugular reflux, hepatomegaly
Question 21: cardiac index
Answer: CO/BSA
Question 22: How does the body compensate in HFrEF?
Answer: neurohormonal pathway activation to increase blood volume or force/speed of contractions; leads
to a temporary increase in CO but also cardiac remodeling
Page 2
