The primary health-care provider prescribes a cough syrup 0.4 g every 4 hours. The dosage strength of the syrup is 100 mg/5 mL. The medication bottle contains a measuring spoon that measures in teaspoons and tablespoons. How many teaspoons will the nurse instruct the client to take?
The Correct Answer is ["4"]
Step 1: Convert the Prescribed Dose to Milligrams
The prescribed dose is 0.4 grams (g), but the medication strength is in milligrams (mg). We need to use the same unit for both.
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There are 1000 mg in 1 g.
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To convert 0.4 g to mg, we multiply by 1000.
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0.4×1000=400
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The prescribed dose is 400 mg.
Step 2: Calculate the Volume (in mL) Needed for the Dose
We know that 5 mL of the syrup contains 100 mg of medication. We need to find out how many mL are needed for 400 mg.
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To find out how many groups of 100 mg are in 400 mg, we divide:
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400÷100=4
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This means we need 4 times the volume of syrup that contains 100 mg.
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The volume for 100 mg is 5 mL. So, we multiply 4 by 5 mL.
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4×5 mL=20 mL
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The total volume needed per dose is 20 mL.
Step 3: Convert the Volume to Teaspoons
The measuring spoon is in teaspoons (tsp). We need to convert 20 mL to teaspoons.
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There are 5 mL in 1 teaspoon.
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To find out how many teaspoons are in 20 mL, we divide 20 by 5.
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20÷5=4
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The dose is 4 teaspoons.
The nurse will instruct the client to take 4 teaspoons.
Sources
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
One mg is equal to 1000 mcg, so 0.3 mg is equal to 300 mcg.
Then, the nurse has to divide the ordered dose by the available dose.
300 mcg divided by 150 mcg is equal to 2.
Therefore, the nurse has to give 2 tablets of Synthroid 150 mcg p.o. daily.
Correct Answer is D
Explanation
- Choice A Rationale: Placing the head of the bed in the flat position is not recommended as it can increase the risk of airway obstruction and reduce venous drainage from the head, which is especially critical after thyroid surgery.
- Choice B Rationale: While deep breathing is important postoperatively, it is not specific to thyroidectomy care and should be done more frequently than every 4 hours to ensure adequate ventilation and prevent atelectasis.
- Choice C Rationale: Hyperextending the client's neck can be harmful post-thyroidectomy as it may put stress on the surgical site, potentially leading to dehiscence or damage to the area.
- Choice D Rationale: Checking the client's voice every 2 hours is essential after a thyroidectomy because vocal cord paralysis can be an indicator of recurrent laryngeal nerve damage, which is a potential complication of the surgery. Monitoring the voice allows for early detection and intervention.
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