A patient who experiences motion sickness when flying asks the nurse the best time to take the medication prescribed to prevent motion sickness for a flight.
The nurse will instruct the patient to take the medication at what time?
As needed at the first sign of nausea.
When seated just prior to takeoff.
At 0830 just prior to boarding the flight.
At 0700 before leaving for the airport.
The Correct Answer is D
Choice A rationale
Taking medication at the first sign of nausea may be too late to prevent motion sickness as it takes time for the medication to be absorbed and take effect.
Choice B rationale
Taking medication just prior to takeoff might not give the drug enough time to be absorbed and start working effectively.
Choice C rationale
Taking medication just prior to boarding the flight may not provide sufficient time for the drug to reach its peak effectiveness.
Choice D rationale
Taking the medication at 0700 before leaving for the airport allows enough time for the drug to be absorbed and reach its peak effect, which is essential for preventing motion sickness during the flight.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Parkinson's disease is characterized by an imbalance of dopamine and acetylcholine, primarily due to the degeneration of dopamine-producing neurons in the substantia nigra. This imbalance results in the characteristic motor symptoms of Parkinson's disease, such as tremors, rigidity, and bradykinesia.
Choice B rationale
Parkinson's disease involves decreased dopamine production, not increased. The disease is caused by the progressive loss of dopamine-producing neurons in the brain, leading to reduced dopamine levels and an imbalance with acetylcholine.
Choice C rationale
Alzheimer's disease is not primarily characterized by a decrease in dopamine. Instead, it involves the degeneration of cholinergic neurons and a deficiency in acetylcholine, which is crucial for memory and cognitive functions.
Choice D rationale
Alzheimer's disease is associated with a deficiency of acetylcholine rather than an excess. The disease is also characterized by the presence of neuritic plaques and neurofibrillary tangles in the brain, which contribute to cognitive decline.
Correct Answer is D
Explanation
Choice A rationale
Coagulation studies assess the blood's ability to clot and are not directly related to the monitoring of phenytoin therapy. These tests are more relevant for patients with bleeding disorders or those on anticoagulant therapy.
Choice B rationale
Serum electrolytes, including levels of sodium, potassium, and calcium, are important for overall health but are not specifically indicative of phenytoin levels. Phenytoin may affect calcium metabolism, but it is not the primary focus for routine monitoring.
Choice C rationale
Renal function tests are crucial for assessing kidney function but do not directly monitor phenytoin therapy. Phenytoin is primarily metabolized in the liver, making liver function tests more relevant.
Choice D rationale
Blood glucose levels should be monitored in patients taking phenytoin as the drug can cause alterations in blood glucose levels. Both hypoglycemia and hyperglycemia have been reported, so it is important to check glucose levels to ensure they remain within a normal range.
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