Rhythm Strip
The nurse is evaluating the following rhythm strip on a client in the telemetry unit. The client is alert and oriented but is complaining of slight nausea after eating breakfast. What is the nurse's best action?
Complete the remainder of the assessment.
Obtain an order for adenosine IV.
Notify the physician of the symptoms.
Administer the prescribed ace inhibitor.
The Correct Answer is C
A. Complete the remainder of the assessment: While ongoing assessment is important, the rhythm strip shows atrial flutter, a potentially unstable arrhythmia, and the client is experiencing symptoms (nausea after breakfast) which could suggest compromised cardiac output. Completing the remainder assessment delays the necessary intervention.
B. Obtain an order for adenosine IV: Adenosine is typically used for stable supraventricular tachycardia (SVT), not for atrial flutter, as it may not terminate the rhythm. It may slow conduction enough to better visualize flutter waves, but initiating it without a provider's order or further evaluation is inappropriate.
C. Notify the physician of the symptoms: The client’s rhythm strip shows atrial flutter with a rapid ventricular response and the patient is experiencing nausea, which could indicate decreased perfusion or early decompensation. Immediately notifying the provider is the safest and most appropriate action for further evaluation and treatment planning.
D. Administer the prescribed ACE inhibitor: ACE inhibitors are used for blood pressure control or heart failure management, not for acute rhythm disturbances. Administering it would not address the current rhythm or symptoms and could worsen hypotension if cardiac output is compromised.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Hypermagnesemia: Hypermagnesemia (high magnesium levels) can cause bradycardia, hypotension, and prolonged PR and QRS intervals. While it can affect cardiac rhythm, it's less commonly associated with PVCs. The client's magnesium level of 2.5 mg/dL is within the normal range (1.5-2.5 mg/dL).
B. Hypocalcemia: While the calcium level of 8.0 mg/dL is slightly low (normal: ~8.5–10.5 mg/dL), mild hypocalcemia is less commonly associated with PVCs compared to hypokalemia. It can affect cardiac contractility but is not the most likely cause of these arrhythmias.
C. Hypokalemia: The potassium level is 2.8 mEq/L, which is significantly below normal (normal: 3.5–5.0 mEq/L). Potassium is a crucial electrolyte for maintaining normal cardiac electrical activity. Hypokalemia increases myocardial excitability and can lead to various cardiac dysrhythmias and a known cause of ventricular irritability, including multifocal PVCs, and increases the risk of life-threatening arrhythmias in clients with cardiac or metabolic conditions.
D. Hyperglycemia: The glucose level of 200 mg/dL is elevated but not severely high. While it reflects poor glycemic control, it is not directly linked to the occurrence of PVCs. Electrolyte imbalances, particularly low potassium, are more arrhythmogenic.
Correct Answer is ["0.5"]
Explanation
Convert milligrams to micrograms.
1 mg = 1000 mcg.
0.05 mg × 1000 mcg/mg = 50 mcg
Desired dose = 25 mcg
Available dose = 50 mcg/tablet
Calculate the number of tablets.
Number of tablets = Desired dose / Available dose per tablet
= 25 mcg / 50 mcg/tablet
= 0.5
The nurse should administer 0.5 tablet.
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