A nurse is preparing to administer diphenhydramine 40mg IM to a client who has allergies. Available is diphenhydramine injection 50mg/mL. How many mL should the nurse administer? Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero
The Correct Answer is ["0.8"]
Given:
Prescribed dose: 40 mg of diphenhydramine
Available concentration: 50 mg/mL
Steps to solve:
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
50 mg/mL = 40 mg/X mL
Cross-multiplying gives us:
50 mg x X mL = 40 mg x 1 mL
Simplifying:
50X = 40
Solving for X:
X = 40 / 50 = 0.8 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3.5"]
Explanation
Convert the weight from grams to kilograms.
1000 grams = 1 kilogram.
To convert 3500 grams to kilograms, we divide:
3500 grams / 1000 grams/kg = 3.5 kg
Correct Answer is A
Explanation
A) Under the tongue: Ergotamine is prescribed for sublingual administration, which means the medication should be placed under the tongue for absorption. Sublingual administration allows the medication to be absorbed directly into the bloodstream through the mucous membranes, bypassing the gastrointestinal system and providing a quicker onset of action.
B) Vaginal: Vaginal administration is not indicated for ergotamine, as this is not a typical route for the medication. Ergotamine is commonly used via sublingual, oral, or rectal routes for migraine treatment, but not vaginally.
C) Topical: Ergotamine is not typically administered topically. The medication is designed for sublingual or oral use, so applying it topically would not provide the intended therapeutic effects for treating a migraine.
D) Subcutaneous: While some medications are administered subcutaneously (under the skin), ergotamine is not commonly given via this route. The prescribed route is sublingual, and administering it subcutaneously would not align with the prescription and could potentially lead to improper absorption and reduced effectiveness.
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