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A client with a history of a-fib is prescribed Digoxin (Lanoxin) 0.125 mg daily. The nurse
needs to determine the amount to be administered per peg tube.
On hand: Digoxin 0.5 mg/mL.
How many mL will be administered?
a) 0.25
b) 0.5
c) 0.75
d) 1.0
Answer: a) 0.25
Rationale: To calculate the volume to administer, divide the prescribed dose by the
concentration on hand:
0.125 mg0.5 mg/mL=0.25 mL\frac{0.125 \, \text{mg}}{0.5 \, \text{mg/mL}} = 0.25 \,
\text{mL}0.5mg/mL0.125mg=0.25mL
The nurse is assessing a client admitted to the cardiac unit. Which assessment findings are a
priority for the nurse to report to the healthcare provider?
a) Pulse oximetry 88% on room air, dry hacking cough, confusion
b) HR 98, BP 110/72, 1+ pedal edema in bilateral extremities
c) Abdominal girth 36 inches, peripheral pulse amplitude regular
d) Sodium level 135 mEq/L, scattered crackles in all lung fields
Answer: a) Pulse oximetry 88% on room air, dry hacking cough, confusion
Rationale: These symptoms suggest possible respiratory distress and/or hypoxia, requiring
immediate attention and intervention.
When titrating IV nitroglycerin for a client with a myocardial infarction (MI), which action will
the nurse take to evaluate the effectiveness of the drug?
, a) Monitor heart rate
b) Observe for dysrhythmias
c) Check blood pressure
d) Ask about chest pain
Answer: d) Ask about chest pain
Rationale: Nitroglycerin is primarily used to relieve chest pain. Evaluating its effectiveness
involves assessing whether the pain is relieved.
Which nursing action can the registered nurse (RN) delegate to experienced unlicensed
assistive personnel (UAP) working as telemetry technicians on the cardiac unit?
a) Select the best lead for monitoring a client admitted with acute coronary syndrome
b) Observe heart rhythms for multiple clients who have telemetry monitoring
c) Monitor a client's level of consciousness during synchronized cardioversion
d) Decide whether a client's heart rate of 116 requires urgent treatment
Answer: b) Observe heart rhythms for multiple clients who have telemetry monitoring
Rationale: UAPs working as telemetry technicians can monitor rhythms but cannot interpret
or make clinical decisions regarding the rhythms.
The nurse is caring for four clients on a cardiac unit. Which of the following therapeutic
nursing interventions is a priority?
a) Initiation of teaching concerning reduction of risk factors for heart disease
b) Taking report on a new admission coming to the unit
c) Administration of morning medications
d) Administration of IV push morphine for a diagnosis of unstable angina
Answer: d) Administration of IV push morphine for a diagnosis of unstable angina
Rationale: Administering morphine for unstable angina helps relieve pain, reduce oxygen
demand, and improve client outcomes, making it the priority intervention.
A nurse on the cardiac care unit is monitoring telemetry. The following appears on the
cardiac monitor. Which of the following medications may be used to treat this dysrhythmia?
(Select all that apply)
a) Amiodarone (Cordarone)
b) Warfarin (Coumadin)
c) Morphine