A nurse is administering haloperidol to a client who has schizophrenia.
For which of the following adverse effects should the nurse monitor?
Gingival hyperplasia.
Muscle rigidity.
Polyuria.
Bruising.
The Correct Answer is B
Choice A rationale
Gingival hyperplasia is an overgrowth of gum tissue, often associated with certain medications like phenytoin or cyclosporine. It is caused by an increase in the number of fibroblasts and collagen deposition in the gingiva. Haloperidol, an antipsychotic, primarily affects dopamine receptors in the brain and does not cause gingival hyperplasia.
Choice B rationale
Haloperidol is a first-generation antipsychotic that blocks D2 dopamine receptors in the brain. This blockade, particularly in the nigrostriatal pathway, can lead to extrapyramidal symptoms (EPS) such as acute dystonia, parkinsonism (including muscle rigidity, bradykinesia, and tremor), and akathisia. Muscle rigidity is a common manifestation of drug-induced parkinsonism.
Choice C rationale
Polyuria is the excessive production of urine, often a symptom of diabetes mellitus or insipidus. It results from impaired water reabsorption in the kidneys. While some medications can affect fluid balance, haloperidol's primary pharmacological action on dopamine receptors does not directly induce polyuria as a typical adverse effect.
Choice D rationale
Bruising, or ecchymosis, results from bleeding under the skin, often due to trauma or coagulation disorders. It is caused by extravasation of blood from capillaries into surrounding tissues. Haloperidol does not affect coagulation factors or platelet function and is not associated with increased bruising as a direct adverse effect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Ocular erythema, or redness of the eye, is not a typical adverse effect associated with spironolactone. Spironolactone is a potassium-sparing diuretic that primarily acts on the renal tubules to inhibit aldosterone, affecting electrolyte balance and fluid excretion, not directly impacting ocular tissues or causing inflammatory responses in the eye.
Choice B rationale
Diarrhea is not a common or expected adverse effect of spironolactone. While gastrointestinal disturbances can occur with many medications, spironolactone is more commonly associated with effects related to its diuretic and anti-androgenic properties, such as electrolyte imbalances (hyperkalemia) or endocrine-related symptoms, rather than increased bowel motility.
Choice C rationale
Muscle weakness can occur as an adverse effect of spironolactone, particularly due to its potential to cause hyperkalemia. Spironolactone's mechanism of action involves conserving potassium, and elevated serum potassium levels (normal range 3.5-5.0 mEq/L) can impair the excitability of muscle cells, leading to symptoms like muscle weakness, fatigue, and in severe cases, cardiac dysrhythmias.
Choice D rationale
Depression is not a recognized or common adverse effect of spironolactone. Spironolactone's primary pharmacological actions are on the kidney and endocrine system, and it is not known to directly affect neurotransmitter systems in the brain in a way that would commonly induce depressive symptoms. Psychotropic effects are not typically associated with this medication.
Correct Answer is C
Explanation
Choice A rationale
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can exacerbate gastric ulcers by inhibiting prostaglandin synthesis, which normally protects the gastric mucosa. Continuing ibuprofen would counteract the therapeutic effects of esomeprazole, a proton pump inhibitor, and increase the risk of gastrointestinal bleeding and ulcer perforation.
Choice B rationale
Esomeprazole delayed-release capsules contain enteric-coated pellets to protect the active ingredient from gastric acid degradation, allowing absorption in the small intestine. Crushing the medication would destroy this protective coating, leading to premature drug release in the stomach and reduced bioavailability, thereby diminishing its therapeutic efficacy.
Choice C rationale
Esomeprazole is a proton pump inhibitor that irreversibly binds to and inhibits the H+/K+-ATPase pump in gastric parietal cells, thereby reducing gastric acid secretion. Taking it 60 minutes before a meal ensures that peak plasma concentrations coincide with the maximal activity of these pumps, which are stimulated by food intake, optimizing its acid-suppressing effect.
Choice D rationale
While some medications can cause insomnia, it is not a commonly reported adverse effect of esomeprazole. Common adverse effects of proton pump inhibitors typically include headache, nausea, diarrhea, abdominal pain, and flatulence, reflecting their primary actions on the gastrointestinal system and potential systemic effects.
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