The nurse is reviewing medication prescriptions.
Which is an appropriate dosage and frequency of cimetidine?
800 mg PO at bedtime.
150 mg PO b.i.d.
20 mg PO b.i.d.
300 mg PO at bedtime.
The Correct Answer is A
800 mg PO at bedtime is an appropriate dosage and frequency of cimetidine for the treatment of gastric ulcer. Cimetidine is a histamine H antagonist that reduces the secretion of gastric acid.
Choice B is wrong because 150 mg PO b.i.d. is too low of a dose for cimetidine. The usual adult dose for duodenal ulcer is 800 mg PO once a day at bedtime or 300 mg PO four times a day.
Choice C is wrong because 20 mg PO b.i.d. is not a valid dose for cimetidine.
The lowest available tablet strength is 100 mg.
Choice D is wrong because 300 mg PO at bedtime is also too low of a dose for cimetidine.
The usual adult dose for gastric ulcer is 800 mg PO once a day at bedtime or 300 mg PO four times a day.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The nurse should question an order for bismuth salts for a client with an allergy to aspirin because bismuth salts contain salicylates, which are chemically related to aspirin and can cause allergic reactions.
Choice A is wrong because rheumatoid arthritis is not a contraindication for bismuth salts.
Bismuth salts may have anti-inflammatory effects that could benefit clients with rheumatoid arthritis.
Choice B is wrong because viral gastroenteritis is not a contraindication for bismuth salts.
Bismuth salts may help reduce diarrhea and inflammation caused by viral gastroenteritis.
Choice D is wrong because hypertension is not a contraindication for bismuth salts.
Bismuth salts do not affect blood pressure or interact with antihypertensive medications.
Correct Answer is D
Explanation
Choice A reason:
Injury sustained to the perineum during birth is not a perinatal injury, but a perineal injury. The perineum is the area between the anus and the genitals, and it can be torn or cut during vaginal delivery. This is a common complication that affects the mother, not the fetus or newborn.
Choice B reason:
Traumatic injury to the mother during pregnancy is not a perinatal injury, but a maternal injury. This can occur due to accidents, violence, or complications of pregnancy such as preeclampsia or placental abruption. This can affect the mother's health and well-being, and may also have consequences for the fetus or newborn.
Choice C reason:
Traumatic injury to a fetus is not a perinatal injury, but a fetal injury. This can occur due to external forces such as blunt trauma, penetrating trauma, or radiation exposure that affect the fetus in utero. This can cause fetal distress, bleeding, fractures, or organ damage.
Choice D reason:
Injury sustained surrounding birth is a perinatal injury. This occurs in the period shortly before, during, or after delivery. This can be a critical time when the baby has to transition from surviving off oxygen, blood, and nutrients from the mother to separating from the womb and breathing oxygen from the air. Perinatal injuries can include head injuries, nerve injuries, hemorrhages, fractures, or soft-tissue injuries that result from the forces of labor and delivery or medical interventions such as forceps or vacuum extraction. Perinatal injuries can lead to long-term neurodevelopmental challenges for the newborn.
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