A nurse is preparing to administer dexamethasone 3 mg PO.
Available are dexamethasone 1.5 mg tablets.
How many tablets should the nurse administer? (Round the answer to the nearest whole number.
Use a leading zero if it applies. Do not use a trailing zero.).
1.
2.
3.
4.
The Correct Answer is B
The nurse should administer 2 tablets.
Since each tablet contains 1.5 mg of dexamethasone, to administer a dose of 3 mg, the nurse should give 3 mg / 1.5 mg/tablet = 2 tablets.
Choice A is incorrect because 1 tablet would only provide a dose of 1.5 mg.
Choice C is incorrect because 3 tablets would provide a dose of 4.5 mg.
Choice D is incorrect because 4 tablets would provide a dose of 6 mg.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["50"]
Explanation
To calculate the flow rate in gtt/min, you need to divide the total volume of the IV fluid (400 mL) by the total infusion time in minutes (8 hours x 60 minutes/hour = 480 minutes) and then multiply by the drop factor of the manual IV tubing (60 gtt/mL).
This gives you a flow rate of (400 mL / 480 minutes) x 60 gtt/mL = 50 gtt/min.
The other choices are not answers because they are not provided in the question.
Correct Answer is A
Explanation
Protamine sulfate is a medication that can be used to reverse the anticoagulant effects of heparin1.
It is a polycationic protein drug obtained from the sperm of fish and is used to reverse the anticoagulant effect of unfractionated heparin (UFH)2.
Choice B, Deferoxamine, is not the correct answer because it is a medication used to treat iron overload, not to reverse heparin’s effects.
Choice C, Sodium polystyrene sulfonate, is not the correct answer because it is a medication used to treat high levels of potassium in the blood, not to reverse heparin’s effects.
Choice D, Acetylcysteine, is not the correct answer because it is a medication used to treat acetaminophen overdose and to loosen thick mucus in individuals with cystic fibrosis or chronic obstructive pulmonary disease.
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