A doctor orders 0.1 mg of Synthroid (levothyroxine), and 50 mcg tablets are available.
How many tablets per dose should the nurse administer to this patient?
1 tablet
3 tablets
4 tablets
2 tablets
The Correct Answer is D
The nurse should administer 2 tablets per dose to this patient.
This answer is correct because it is based on a simple unit conversion and ratio and proportion calculation. The nurse can convert 0.1 mg to 100 mcg by multiplying by 1000, since there are 1000 mcg in 1 mg. Then, the nurse can set up a proportion as follows:
50 mcg / 1 tablet = 100 mcg / x tablets
Cross-multiplying and solving for x gives:
x = 2 tablets
Therefore, the nurse should administer 2 tablets of Synthroid to deliver 0.1 mg or 100 mcg of the medication to the patient.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The dose of the medicine per day is 1.8 mcg.
This answer is correct because it is based on a simple multiplication calculation. The nurse should follow these steps to calculate the dose of the medicine per day:
1) Divide 24 hours by the frequency of the dose to get the number of doses per day, as follows:
24 / 4 = 6
Therefore, the client will receive 6 doses of the medicine per day.
2) Multiply the number of doses per day by the amount of each dose to get the total dose per day, as follows:
6 x 0.3 mcg = 1.8 mcg
Therefore, the dose of the medicine per day is 1.8 mcg.
Correct Answer is A
Explanation
Insulin is a hormone that helps regulate blood sugar levels. It is usually injected into the fat layer just under the skin (subcutaneous or SubQ) using a syringe and needle or a pen-like device². Insulin syringes are marked in units of insulin, not milliliters or cubic centimeters. The most common insulin syringe holds 1 mL of fluid and has markings for 100 units of insulin². A U-100 syringe means that for every 1 mL of fluid, there are 100 units of insulin³.
To administer 14 units of insulin, you would need to draw up 0.14 mL of fluid in a U-100 syringe. You would inject the insulin into your abdomen, upper arm, butocks, hip, or the front or side of the thigh¹. You would use a different area within the site each time you inject insulin to prevent lumps, swelling, or thickened skin¹.
The other options are incorrect because:
b) There is no need to divide the dose into two injections. This would increase the risk of infection and pain.
c) A tuberculin syringe is not designed for insulin administration. It is marked in milliliters or cubic centimeters, not units of insulin. Using a tuberculin syringe could result in an incorrect dose of insulin.
d) The timing of insulin administration depends on the type and duration of insulin. Some insulins are taken before meals, some are taken after meals, and some are taken once or twice a day. The primary healthcare provider should specify when to take the insulin.
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