APEA 3P Exam
Complete Study Guide
296 NCLEX-Style Multiple-Choice Questions
with Full Clinical Rationales for Every Answer
✓ 100% GUARANTEED PASS
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⏹ ✓ APEA 3P Exam Complete Study Guide
⏹ 296 multiple-choice questions with elaborate rationales
⏹ 100% Guaranteed Pass
⏹ Complete A+ Guide
⏹ NP Board Review
Trusted Study Material for Nursing & NP Students
,APEA 3P Exam Complete Study Guide
1 Digoxin is part of what family of drugs?
A. Angiotensin-converting enzyme inhibitors
B. Beta-blockers
C. Angiotensin II receptor blockers
D. Cardiac glycosides
D. Cardiac glycosides
The answer is D: Digoxin is a cardiac glycoside. This family of drugs increases the
force of myocardial contraction (positive inotropic effect) and decreases the heart rate
(negative chronotropic effect) by inhibiting the sodium-potassium ATPase pump in
myocardial cells.
2 Digoxin helps the heart pump more efficiently by altering the inotropic, chronotropic,
and dromotropic actions of the heart. Select all the options below that accurately
describe these actions created by Digoxin: Select all that apply
A. Positive Chronotropic
B. Positive Inotropic
C. Negative Inotropic
D. Negative Dromotropic
E. Negative Chronotropic
F. Positive Dromotropic
,Answers: B, D, E
B. Positive Inotropic
D. Negative Dromotropic
E. Negative Chronotropic
The answer is B, D, E: Digoxin has a positive inotropic effect (increases contractility), a
negative chronotropic effect (decreases heart rate), and a negative dromotropic effect
(slows conduction through the AV node). This combination makes contractions
stronger and slower, increasing stroke volume and cardiac output while improving
cardiac efficiency.
3 A patient is taking Digoxin. What medication on the patient's medication list
increases the patient's risk of experiencing Digoxin toxicity?
A. Furosemide
B. Metformin
C. Nitroglycerin
D. Coumadin
A. Furosemide
The answer is A: Furosemide is a loop diuretic that causes potassium wasting.
Hypokalemia (low potassium) increases the risk of digoxin toxicity because potassium
competes with digoxin for binding sites on the Na+/K+ ATPase pump; lower potassium
levels allow more digoxin to bind, enhancing toxic effects.
4 Your patient, who is 55-years-old, is prescribed to take Digoxin. What patient finding
requires that the nurse hold the dose of Digoxin and notify the physician?
A. Digoxin level of 1.2 ng/mL
B. Blood glucose 82
, C. Heart rate 61 bpm
D. Potassium 2.8 mEq/L
D. Potassium 2.8 mEq/L
The answer is D: A potassium level of 2.8 mEq/L indicates severe hypokalemia (normal
is 3.5-5.0 mEq/L), which puts the patient at extreme risk for developing digoxin
toxicity. The nurse must hold the dose and contact the provider. The other parameters
(digoxin level 1.2, glucose 82, and heart rate 61) are within acceptable limits.
5 What is the therapeutic range of the drug Digoxin?
A. 2-3.5 ng/mL
B. 0.1-2 ng/mL
C. 0.5-2 ng/mL
D. 3.5-5 ng/mL
C. 0.5-2 ng/mL
The answer is C: The therapeutic serum range for digoxin is generally 0.5 to 2.0 ng/mL.
Levels above 2.0 ng/mL are considered toxic and require monitoring and potential
intervention.
6 An adult patient is being discharged home on Digoxin. Which statements below
verbalized by the patient demonstrates they understand how to properly take this
medication? Select all that apply: Select all that apply
A. "I will limit my intake of foods high in potassium."
B. "I will not take this medication and notify the physician if my heart rate is less than
70 bpm."
C. "I will measure my pulse rate before every dose I take."