A client who weighs 65 kg receives a prescription for lorazepam 44 mcg/kg intravenously to be administered 20 minutes before a scheduled procedure. The medication is available in 2 mg/mL vial. How many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["1.4"]
Calculate the total dosage required: 44 mcg/kg * 65 kg = 2860 mcg. Convert mcg to mg: 2860 mcg ÷ 1000 = 2.86 mg.
Divide by concentration: 2.86 mg ÷ 2 mg/mL = 1.43 mL.
Considering the vial contains 2 mg/mL, the nurse should administer around 1.43 mL, which can be rounded to 1.4 mL.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
In this scenario, the child with a congenital heart defect is presenting with a fever and an
earache. The mother expresses concern about the child's weight and height being at the 5th percentile for his age. Given the child's medical history of a congenital heart defect, it is important for the nurse to address the mother's concerns and provide an accurate response.
The response that states "His smaller size is probably due to the heart disease" is appropriate because children with congenital heart defects may experience growth and developmental delays. Heart defects can affect the child's ability to obtain sufficient nutrients for growth, leading to slower weight and height gain. By acknowledging the relationship between the child's heart disease and his smaller size, the nurse provides the mother with an explanation for the child's growth pattern and helps alleviate concerns.
The other response options are not appropriate or helpful. Asking about the child's mental abilities or implying that the mother has not been feeding the child adequately can be perceived as judgmental or dismissive.
Correct Answer is B
Explanation
The correct answer is Choice B.
Choice A rationale: Ice application induces vasoconstriction, which reduces swelling but does not evert inverted nipples. This action does not address the primary issue of nipple inversion preventing adequate latch.
Choice B rationale: Breast pump use creates negative pressure, drawing out the nipple. This eversion facilitates latching by providing a more prominent nipple for the infant's oral cavity to grasp effectively.
Choice C rationale: Supplemental formula feedings provide nutrition, but do not resolve the latching difficulty caused by inverted nipples. This can interfere with the establishment of the mother's milk supply.
Choice D rationale: Breast shields can aid latching, but they are most effective when used in conjunction with nipple eversion techniques. They do not directly address the underlying problem of inverted nipples.
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