A nurse is caring for a client who has hypertension and has a potassium level of 6.8 mEq/L. Which of the following actions should the nurse take?
Suggest that the client use a salt substitute.
Advise the client to add citrus juices and bananas to her diet.
Obtain a 12-lead ECG
Obtain a blood sample for a serum sodium level
The Correct Answer is C
Rationale:
A. Salt substitutes often contain potassium and should be avoided in clients with hyperkalemia.
B. Citrus juices and bananas are high in potassium and should be avoided in clients with hyperkalemia.
C. A 12-lead ECG may include changes such as peaked T wave, flattened P wave, prolonged PR interval, ST depression, and prolonged QRS duration.
D. A serum sodium level should be obtained but it is not the priority in this case.
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Related Questions
Correct Answer is D
Explanation
Rationale:
A. Synchronized cardioversion is not appropriate for pulseless ventricular tachycardia.
B. A repeat ECG is not necessary for pulseless ventricular tachycardia.
C. Assessment of blood pressure is not the priority in pulseless ventricular tachycardia.
D. Immediate defibrillation is the priority in pulseless ventricular tachycardia to restore a perfusing rhythm.

Correct Answer is A
Explanation
Rationale:
A. Mitral valve regurgitation typically presents with a murmur, which is a characteristic sound associated with the backflow of blood into the left atrium during systole.
B. S3 and S4 are not typical heart sounds and do not relate to mitral valve regurgitation.
C. A click is typically associated with mitral valve prolapse, not mitral valve regurgitation.
D. A friction rub is typically associated with pericarditis, not mitral valve regurgitation.
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