A nurse is assisting with the care of a client who is in preterm labor and has a prescription for terbutaline 250 mcg subcutaneously, every 20 min. Available is terbutaline 1 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero d applies Do not use a trailing zero)
The Correct Answer is ["0.25"]
Given:
Prescribed dose: 250 mcg of terbutaline
Available concentration: 1 mg/mL
Steps to solve:
Convert mg to mcg:
1 mg = 1000 mcg
1 mg/mL = 1000 mcg/mL
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
1000 mcg/mL = 250 mcg/X mL
Cross-multiplying gives us:
1000 mcg x X mL = 250 mcg x 1 mL
Simplifying:
1000X = 250
Solving for X:
X = 250 / 1000 = 0.25 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Given:
Prescribed dose: 10 mg of metoclopramide
Available concentration: 5 mg/mL
Steps to solve:
Determine the volume to be administered:
Set up a proportion to solve for the unknown volume (X):
5 mg/mL = 10 mg/X mL
Cross-multiplying gives us:
5 mg x X mL = 10 mg x 1 mL
Simplifying:
5X = 10
Solving for X:
X = 10 / 5 = 2 mL
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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