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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Correct Answer is B
Explanation
A) Incorrect- Genetically inherited disorders of family members: While a family history of certain disorders might provide some insight, it is not typically the primary cause of elevated serum magnesium levels in an older adult.
B) Correct- Elevated serum magnesium levels are commonly associated with chronic laxative use, especially those containing magnesium-based compounds. Laxatives can lead to excessive magnesium intake, causing hypermagnesemia.
C. Incorrect- Smoking is not a common cause of elevated serum magnesium levels.
D. Incorrect- While dietary sources can contribute to magnesium intake, chronic laxative use is a more likely cause in this context.
Correct Answer is C
Explanation
A) Incorrect- While physical soothing can help comfort the child after the injections, it may not significantly reduce the duration of pain during the injections themselves.
B) Incorrect- Verbal reassurance is important to provide a calming environment, but it may not directly reduce the duration of pain during the injections.
C) Correct- Administering vaccines can be distressing for toddlers due to the pain associated with injections. To reduce the duration of pain and minimize the overall discomfort, the nurse should prioritize the strategy of simultaneous injections. This involves administering multiple vaccines at the same time rather than spacing them out. The rationale behind this approach is that the child experiences the discomfort of the injections only once, which can help reduce their overall distress and anxiety.
D) Incorrect- The positioning of the child may not have a direct impact on the duration of pain during injections. However, choosing an appropriate position for comfort is still important.
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