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 C
Explanation
Choice A rationale
Myasthenia gravis primarily affects voluntary muscles, especially those involved in breathing and facial movements. Gastrointestinal (GI) and lower extremity muscles are generally not the main muscles affected by this condition. It is an autoimmune disorder that impacts the neuromuscular junction, where nerves communicate with muscles, leading to muscle weakness and fatigue.
Choice B rationale
The central nervous system (CNS), memory, and cognition are not typically impacted by myasthenia gravis. This disorder primarily involves peripheral nervous system issues that affect voluntary muscle control rather than cognitive functions. Myasthenia gravis does not cause alterations in memory or cognition as seen with central nervous system disorders like Alzheimer's disease.
Choice C rationale
Myasthenia gravis notably affects respiratory and facial muscles. The autoimmune attack on acetylcholine receptors leads to muscle weakness, particularly in muscles controlling eye movements, facial expressions, and breathing. Patients may experience difficulty breathing, swallowing, and maintaining an open airway due to this muscle weakness.
Choice D rationale
The cardiovascular system and postural muscles are not commonly affected by myasthenia gravis. This condition involves the neuromuscular junction and leads to fatigue in voluntary muscles, primarily those involved in eye movement, facial expressions, and respiration. Cardiovascular symptoms are not a direct consequence of myasthenia gravis.
Correct Answer is D
Explanation
Choice A rationale
Serotonin does not compete with anticholinergic agents at muscarinic acetylcholine receptor sites; anticholinergics target these receptors to inhibit the parasympathetic nervous system.
Choice B rationale
Anticholinergics do not increase norepinephrine at the neuromuscular junction.
Choice C rationale
Nicotinic receptors are primarily affected by different classes of drugs, such as neuromuscular blockers.
Choice D rationale
Anticholinergics inhibit the actions of the parasympathetic nervous system by blocking muscarinic receptors, reducing bodily functions like saliva production, digestion, and urination.
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