The patient newly diagnosed with epilepsy asks the nurse to explain the meaning of the diagnosis.
What is the nurse's best response?
Epilepsy is the clonic-tonic muscle contraction with the potential to cause injury.
Epilepsy is a convulsive disorder caused by electrical discharge in the muscle.
Epilepsy is a single disease.
Epilepsy is characterized by sudden discharge of electrical energy.
The Correct Answer is D
Choice A rationale
Clonic-tonic muscle contraction is related to convulsions and seizures but does not accurately define epilepsy. Epilepsy is a neurological disorder characterized by recurrent seizures due to abnormal electrical activity in the brain.
Choice B rationale
Epilepsy involves abnormal electrical discharges in the brain, not in the muscles. Muscle contractions are a symptom of seizures, not the cause of epilepsy.
Choice C rationale
Epilepsy is not a single disease; it encompasses various conditions characterized by recurrent seizures. It is a spectrum of disorders with different causes and manifestations.
Choice D rationale
This choice accurately describes epilepsy as characterized by sudden, recurrent, and transient disturbances in brain function due to abnormal electrical discharges in the brain.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Magnesium plays a role in various cellular functions, including enzyme activity and muscle contraction, but it does not directly inactivate troponin to enable actin and myosin interaction.
Choice B rationale
Sodium is essential for action potential generation and nerve impulse transmission but does not directly influence troponin activity or muscle contraction through actin and myosin bridge formation.
Choice C rationale
Potassium is critical for maintaining cellular resting membrane potential and repolarization of cells but does not play a direct role in inactivating troponin to facilitate muscle contraction.
Choice D rationale
Calcium is the electrolyte that inactivates troponin, allowing actin and myosin to form cross-bridges and contract muscle fibers. Calcium binds to troponin, causing a conformational change that exposes binding sites for myosin on actin filaments.
Correct Answer is D
Explanation
Choice A rationale
Platelet count measures the number of platelets in the blood, which are essential for blood clotting. However, it is not specific to monitoring the anticoagulant effects of warfarin.
Choice B rationale
Activated thromboplastin time (APT) measures the intrinsic pathway of coagulation and is typically used to monitor heparin therapy, not warfarin.
Choice C rationale
Red blood count (RBC) measures the number of red blood cells in the blood, which can indicate anemia but is unrelated to the anticoagulant effects of warfarin.
Choice D rationale
Prothrombin time (PT) and international normalized ratio (INR) are specific tests used to monitor the anticoagulant effects of warfarin. PT measures the time it takes for blood to clot, and INR standardizes this measurement to ensure consistency across different laboratories.
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