A client who is prone to motion sickness is going on a fishing trip on a boat and has been prescribed an antiemetic.
What action should the nurse recommend?
Avoid eating or drinking for 6 hours before the trip.
Take the medication 30 minutes before departing.
Take two doses if relief is not achieved.
Increase fluid intake to prevent urinary retention.
The Correct Answer is B
This is because antiemetics should be given to prevent motion sickness rather than after nausea or vomiting develop. Taking the medication 30 minutes before departing allows enough time for the drug to be absorbed and reach its peak effect.
Choice A is wrong because avoiding eating or drinking for 6 hours before the trip may cause dehydration and low blood sugar, which can worsen nausea and vomiting.
It is better to eat a light meal or snack before the trip and avoid spicy, greasy, or acidic foods.
Choice C is wrong because taking two doses if relief is not achieved may cause overdose and adverse effects.
Antiemetics should be taken as prescribed and not exceeded without consulting a doctor.
Choice D is wrong because increasing fluid intake to prevent urinary retention is not relevant for motion sickness.
Urinary retention is a possible side effect of some antiemetics, such as anticholinergics, but it is not a common problem for most people.
Fluid intake should be moderate and not excessive to avoid stomach distension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This is because proton pump inhibitors (PPIs) are drugs that block the enzyme that produces hydrochloric acid in the stomach, thereby reducing the amount of acid secreted into the lumen. PPIs are commonly used to treat peptic ulcer disease and gastroesophageal reflux disease.
Choice B. Histamine-2 antagonist is wrong because histamine-2 antagonists (H blockers) are drugs that block the action of histamine on the parietal cells of the stomach, thereby reducing the amount of acid secreted into the lumen.
However, PPIs are more potent and effective than H blockers in suppressing acid secretion.
Choice C. Prostaglandin is wrong because prostaglandins are substances that protect the stomach lining from the damaging effects of acid and other factors.
Prostaglandins do not directly affect the secretion of acid into the lumen, but they may increase the production of mucus and bicarbonate that buffer the acid.
Choice D. Antipeptic agent is wrong because antipeptic agents are drugs that form a protective barrier over the ulcer crater, preventing further damage from acid and pepsin.
Antipeptic agents do not affect the secretion of acid into the lumen, but they may enhance healing by creating a favorable environment for tissue repair.
Normal ranges for hydrochloric acid secretion in the stomach are 1.5 to 3.5 liters per day, with a pH of 1.5 to 3.53.
Correct Answer is A
Explanation
Desmopressin is a synthetic analog of antidiuretic hormone (ADH) that acts on the kidneys to increase water reabsorption and decrease urine output. Neurogenic diabetes insipidus is a condition caused by a deficiency of ADH due to damage to the hypothalamus or pituitary gland. Patients with this condition have excessive thirst and urination, dehydration, and low urine specific gravity.
Choice B. Methylprednisolone is wrong because it is a corticosteroid that suppresses inflammation and immune response.
It is not used to treat diabetes insipidus.
Choice C. Dexamethasone is wrong because it is also a corticosteroid that has similar effects as methylprednisolone.
It is not used to treat diabetes insipidus.
Choice D. Physostigmine is wrong because it is a cholinesterase inhibitor that increases the levels of acetylcholine in the body.
It is used to treat myasthenia gravis and anticholinergic poisoning.
It has no effect on diabetes insipidus.
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