A nurse is assessing a client with hypertension who is receiving propranolol. Which of the following findings requires the nurse’s intervention?
A.
Heart rate of 56/min
B.
Sa02 95% on 2 L/min of oxygen
C.
Respirations 22/min
D.
Blood pressure 106/68 mm Hg
The correct answer and Explanation is :
In this scenario, the finding that requires the nurse’s intervention is:
A. Heart rate of 56/min
Explanation:
Propranolol is a non-selective beta-blocker commonly used to manage hypertension. One of its primary effects is to reduce heart rate by blocking beta-adrenergic receptors. While this can be beneficial in managing blood pressure and reducing cardiac workload, it can also lead to bradycardia (a slower than normal heart rate).
The normal resting heart rate for adults is typically between 60 and 100 beats per minute. A heart rate of 56 beats per minute is considered bradycardic and may be a sign that the propranolol is lowering the heart rate too much. Bradycardia can cause symptoms such as dizziness, fatigue, and even syncope (fainting). In severe cases, it can impair cardiac output and perfusion, potentially leading to more serious complications.
The other findings are less concerning in the context of propranolol use:
- SaO2 95% on 2 L/min of oxygen: This oxygen saturation level is within an acceptable range, indicating adequate oxygenation. The use of supplemental oxygen suggests that the client may have a respiratory or cardiac condition that requires monitoring, but the SaO2 value itself is not immediately alarming.
- Respirations 22/min: This rate is slightly elevated but can be within normal limits depending on the client’s condition and activity level. It is not specifically indicative of a problem related to propranolol.
- Blood pressure 106/68 mm Hg: While this blood pressure reading is on the lower side, it is not excessively low and may be a desired effect of propranolol in controlling hypertension. The nurse should monitor for any signs of hypotension, but this single reading does not necessarily require immediate intervention.
Therefore, the heart rate of 56 beats per minute is the most critical finding that requires the nurse’s intervention, as it could indicate bradycardia related to propranolol and may need adjustment of the medication or further assessment.