NURS 316B: CARDIO EXAM QUESTIONS
WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.
A client has been given a prescription for Furosemide 40 mg every day in conjunction with
Digoxin. Which concern would prompt the nurse to ask the health care provider about
potassium supplements?
A. Digoxin causes significant potassium depletion.
B. The liver destroys potassium as digoxin is detoxified.
C. Lasix requires adequate serum potassium to promote diuresis.
D. Digoxin toxicity occurs rapidly in the presence of hypokalemia - ANS D. Digoxin toxicity
occurs rapidly in the presence of hypokalemia.
A client takes furosemide and digoxin for heart failure. Why would the nurse advise the client
to drink a glass of orange juice every day?
A. Maintaining potassium levels
B. Preventing increased sodium levels
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,C. Limiting the medications' synergistic effects
D. Correcting the associated dehydration - ANS A. Maintaining potassium levels
A client is admitted to the hospital for a new onset of supraventricular tachycardia (SVT) and is
prescribed digoxin. For which laboratory finding should the nurse notify the healthcare provider
immediately?
A. Potassium level of 3.1 mEq/L.
B. Sodium level of 132 mEq/L.
C. Calcium level of 8.6 mg/dL.
D. Magnesium level of 1.2 mEq/L. - ANS A. Potassium level of 3.1 mEq/L.
The nurse is caring for a client prescribed furosemide and digoxin for the treatment of heart
failure. The client reports seeing halos and bright lights. Which laboratory result would be
anticipated?
A. Low sodium level
B. Low digitalis level
C. Low potassium level
D. Low serum osmolality - ANS C. Low potassium level
The nurse is providing care for a client admitted to the hospital with a diagnosis of digoxin
toxicity. The client reports more than usual urine output over the previous 48 hours, because of
the prescribed diuretic. Which assessment finding does the nurse anticipate?
A. Muscle weakness or cramping
B. Blood in the urine
C. Hypertension
D. Tinnitus - ANS A. Muscle weakness or cramping
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,An 80-year-old client who is taking digoxin reports nausea, vomiting, abdominal cramps and
halo vision. Which laboratory result should the nurse evaluate first?
A. Potassium levels
B. Blood pH
C. Magnesium levels
D. Blood urea nitrogen - ANS A. Potassium levels
A nurse is preparing to administer morning medications to a client with heart failure. The
morning lab values are: sodium 142 mEq/L (142 mmol/L), potassium 2.9 mEq/L (2.9 mmol/L),
digoxin level 1.4 ng/mL. Which of the following medications should the nurse not administer
until after speaking with the health care provider?
A. Spironolactone
B. Carvedilol (Coreg)
C. Digoxin (Lanoxin)
D. Ferrous sulfate - ANS C. Digoxin (Lanoxin)
The nurse is preparing to administer digoxin to a client with recurring atrial fibrillation. Which
laboratory value should be of highest concern for the nurse?
A. Hemoglobin 9.4 g/dL
B. Serum potassium 3.1 mEq/L
C. Serum creatinine 1.9 mg/dL
D. B-type natriuretic peptide 140 pg/mL - ANS B. Serum potassium 3.1 mEq/L
A client recently diagnosed with heart failure has been prescribed digoxin and furosemide.
Which of the following foods should the nurse teach the client to eat at least one serving a day?
A. Blueberries
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, B. Wheat cereal
C. Tomato juice
D. Pear nectar - ANS C. Tomato juice
The client with hypokalemia reports nausea, vomiting, and seeing a yellow light around objects.
Which of the client's medications is the likely cause of the client's symptoms?
A. Digoxin
B. Furosemide
C. Propranolol
D. Spironolactone - ANS A. Digoxin
A client who takes multiple medications complains of severe nausea, and the client's heartbeat
is irregular and slow. The nurse determines that these signs and symptoms are toxic effects of
which medication?
A. Digoxin
B. Captopril
C. Furosemide
D. Morphine sulfate - ANS A. Digoxin
The nurse is providing discharge medication teaching to a client who will be taking furosemide
and digoxin after discharge from the hospital. Which information is important for the nurse to
include in the teaching plan?
A. Maintenance of a low-potassium diet
B. Avoidance of foods high in cholesterol
C. Signs and symptoms of digoxin toxicity
D. Importance of monitoring output - ANS C. Signs and symptoms of digoxin toxicity
Digoxin is prescribed for a client with heart failure. The nurse will assess for which signs and
symptoms that indicate digoxin toxicity? Select all that apply. One, some, or all responses may
be correct.
A. Nausea
4 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.
A client has been given a prescription for Furosemide 40 mg every day in conjunction with
Digoxin. Which concern would prompt the nurse to ask the health care provider about
potassium supplements?
A. Digoxin causes significant potassium depletion.
B. The liver destroys potassium as digoxin is detoxified.
C. Lasix requires adequate serum potassium to promote diuresis.
D. Digoxin toxicity occurs rapidly in the presence of hypokalemia - ANS D. Digoxin toxicity
occurs rapidly in the presence of hypokalemia.
A client takes furosemide and digoxin for heart failure. Why would the nurse advise the client
to drink a glass of orange juice every day?
A. Maintaining potassium levels
B. Preventing increased sodium levels
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,C. Limiting the medications' synergistic effects
D. Correcting the associated dehydration - ANS A. Maintaining potassium levels
A client is admitted to the hospital for a new onset of supraventricular tachycardia (SVT) and is
prescribed digoxin. For which laboratory finding should the nurse notify the healthcare provider
immediately?
A. Potassium level of 3.1 mEq/L.
B. Sodium level of 132 mEq/L.
C. Calcium level of 8.6 mg/dL.
D. Magnesium level of 1.2 mEq/L. - ANS A. Potassium level of 3.1 mEq/L.
The nurse is caring for a client prescribed furosemide and digoxin for the treatment of heart
failure. The client reports seeing halos and bright lights. Which laboratory result would be
anticipated?
A. Low sodium level
B. Low digitalis level
C. Low potassium level
D. Low serum osmolality - ANS C. Low potassium level
The nurse is providing care for a client admitted to the hospital with a diagnosis of digoxin
toxicity. The client reports more than usual urine output over the previous 48 hours, because of
the prescribed diuretic. Which assessment finding does the nurse anticipate?
A. Muscle weakness or cramping
B. Blood in the urine
C. Hypertension
D. Tinnitus - ANS A. Muscle weakness or cramping
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,An 80-year-old client who is taking digoxin reports nausea, vomiting, abdominal cramps and
halo vision. Which laboratory result should the nurse evaluate first?
A. Potassium levels
B. Blood pH
C. Magnesium levels
D. Blood urea nitrogen - ANS A. Potassium levels
A nurse is preparing to administer morning medications to a client with heart failure. The
morning lab values are: sodium 142 mEq/L (142 mmol/L), potassium 2.9 mEq/L (2.9 mmol/L),
digoxin level 1.4 ng/mL. Which of the following medications should the nurse not administer
until after speaking with the health care provider?
A. Spironolactone
B. Carvedilol (Coreg)
C. Digoxin (Lanoxin)
D. Ferrous sulfate - ANS C. Digoxin (Lanoxin)
The nurse is preparing to administer digoxin to a client with recurring atrial fibrillation. Which
laboratory value should be of highest concern for the nurse?
A. Hemoglobin 9.4 g/dL
B. Serum potassium 3.1 mEq/L
C. Serum creatinine 1.9 mg/dL
D. B-type natriuretic peptide 140 pg/mL - ANS B. Serum potassium 3.1 mEq/L
A client recently diagnosed with heart failure has been prescribed digoxin and furosemide.
Which of the following foods should the nurse teach the client to eat at least one serving a day?
A. Blueberries
3 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, B. Wheat cereal
C. Tomato juice
D. Pear nectar - ANS C. Tomato juice
The client with hypokalemia reports nausea, vomiting, and seeing a yellow light around objects.
Which of the client's medications is the likely cause of the client's symptoms?
A. Digoxin
B. Furosemide
C. Propranolol
D. Spironolactone - ANS A. Digoxin
A client who takes multiple medications complains of severe nausea, and the client's heartbeat
is irregular and slow. The nurse determines that these signs and symptoms are toxic effects of
which medication?
A. Digoxin
B. Captopril
C. Furosemide
D. Morphine sulfate - ANS A. Digoxin
The nurse is providing discharge medication teaching to a client who will be taking furosemide
and digoxin after discharge from the hospital. Which information is important for the nurse to
include in the teaching plan?
A. Maintenance of a low-potassium diet
B. Avoidance of foods high in cholesterol
C. Signs and symptoms of digoxin toxicity
D. Importance of monitoring output - ANS C. Signs and symptoms of digoxin toxicity
Digoxin is prescribed for a client with heart failure. The nurse will assess for which signs and
symptoms that indicate digoxin toxicity? Select all that apply. One, some, or all responses may
be correct.
A. Nausea
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