Answer: option A: Frequent syncope.
Frequent syncope, or fainting, is a significant concern when taking blood pressure readings in a client with Parkinson's disease. Fainting can occur due to orthostatic hypotension, a common symptom in Parkinson's disease where blood pressure drops significantly upon standing. It is crucial for the nurse to take precautions to ensure the client's safety during the blood pressure measurement. This may involve assisting the client in sitting or lying down to prevent falls or providing support and monitoring if the client is at risk of syncope.
While options D (blurred vision) and E (frequent drooling) can also impact the client's comfort and cooperation during the measurement, frequent syncope has more direct implications for the client's safety during the procedure.
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