The nurse is planning health teaching for a client starting on donepezil for Alzheimer’s disease (AD). For which side effect will the nurse teach the family to monitor?
Low oxygen saturation
High blood pressure
Elevated body temperature
Low pulse rate
The Correct Answer is D
Choice A Reason:
Low oxygen saturation is not a common side effect of donepezil. Donepezil is a cholinesterase inhibitor used to treat symptoms of Alzheimer’s disease by increasing the levels of acetylcholine in the brain. While it can have various side effects, respiratory issues like low oxygen saturation are not typically associated with this medication. Therefore, monitoring for low oxygen saturation is not a primary concern for patients starting donepezil.
Choice B Reason:
High blood pressure is also not a common side effect of donepezil. The medication primarily affects the central nervous system and does not typically cause significant changes in blood pressure. While it is always important to monitor a patient’s overall health, high blood pressure is not a side effect specifically linked to donepezil use. Therefore, it is not a primary focus for monitoring in this context.
Choice C Reason:
Elevated body temperature is not commonly associated with donepezil. The side effects of donepezil are more likely to involve gastrointestinal issues such as nausea, vomiting, and diarrhea, as well as muscle cramps and fatigue. Elevated body temperature is not a typical reaction to this medication, so it is not a primary concern for monitoring.
Choice D Reason:
Low pulse rate, or bradycardia, is a known side effect of donepezil. Donepezil can increase the levels of acetylcholine, which can affect the heart’s electrical conduction system and lead to a slower heart rate. This can be particularly concerning in elderly patients or those with pre-existing heart conditions. Therefore, it is crucial for the nurse to teach the family to monitor the client’s pulse rate regularly and report any significant decreases to the healthcare provider.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason:
Pronation of the hands.
Pronation of the hands is not typically associated with decorticate posturing. Decorticate posturing is characterized by the flexion of the arms and wrists, with the hands often clenched into fists. Pronation refers to the rotation of the hands so that the palms face downward, which is not a feature of decorticate posturing.
Choice B Reason:
Extension of the arms.
Extension of the arms is more characteristic of decerebrate posturing, not decorticate posturing. In decorticate posturing, the arms are flexed and held tightly to the chest, not extended. This flexion is due to damage to the cerebral hemispheres, which affects the corticospinal tract.
Choice C Reason:
External rotation of the lower extremities.
External rotation of the lower extremities is not a typical finding in decorticate posturing. In decorticate posturing, the legs are usually extended and rigid, with the toes pointed. External rotation would indicate a different type of posturing or neurological condition.
Choice D Reason:
Plantar flexion of the legs.
Plantar flexion of the legs is a characteristic finding in decorticate posturing. This involves the toes pointing downward, which is a result of the increased muscle tone and reflexes due to the brain injury. This posture indicates severe damage to the brain, specifically the corticospinal tract.
Correct Answer is A
Explanation
Choice A Reason:
0.45% sodium chloride (half-normal saline) is an appropriate solution for treating hypernatremia, especially in a client who is NPO (nothing by mouth). This hypotonic solution helps to gradually reduce the serum sodium levels by providing free water to the extracellular space, which dilutes the high sodium concentration. It is essential to administer this solution slowly to avoid rapid shifts in fluid balance, which can lead to cerebral edema.
Choice B Reason:
Dextrose 5% in 0.9% sodium chloride (D5NS) is not the best choice for treating hypernatremia. While it provides some free water, the presence of 0.9% sodium chloride makes it an isotonic solution, which does not effectively lower serum sodium levels. This solution is more suitable for maintaining fluid balance rather than correcting hypernatremia.
Choice C Reason:
Lactated Ringer’s is also not appropriate for treating hypernatremia. This isotonic solution contains electrolytes, including sodium, which can exacerbate hypernatremia rather than correct it. Lactated Ringer’s is typically used for fluid resuscitation and electrolyte replacement in other clinical scenarios.
Choice D Reason:
Dextrose 10% in water (D10W) is a hypertonic solution and is not suitable for treating hypernatremia. While it provides free water, the high concentration of dextrose can lead to rapid shifts in fluid balance and potential complications such as hyperglycemia. This solution is generally used for providing calories and preventing hypoglycemia in specific clinical situations.
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