A nurse is preparing to administer levothyroxine 150 mcg PO. Available is levothyroxine 75 mcg 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.)
The Correct Answer is ["2"]
To give the correct dose of levothyroxine, the nurse needs to calculate how many tablets of 75 mcg are equivalent to 150 mcg. The nurse can use a proportion to solve this problem. Let x be the number of tablets to administer. Then, the proportion is:
75 mcg / 1 tablet = 150 mcg / x tablets
Cross-multiplying, we get:
75x = 150
Dividing both sides by 75, we get:
x = 2
Therefore, the nurse should administer 2 tablets of levothyroxine 75 mcg to give a total of 150 mcg.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.7"]
Explanation
To calculate the dose of chlorpromazine for a child who weighs 66 lb, first convert the weight to kilograms by dividing by 2.2.
This gives 66 / 2.2 = 30 kg.
Then multiply the weight by the prescribed dose of 0.55 mg/kg to get the total dose in milligrams: 30 x 0.55 = 16.5 mg.
Finally, divide the total dose by the concentration of the injection solution to get the volume in milliliters: 16.5 / 25 = 0.66 ml.
The nurse should administer 0.7 ml of chlorpromazine IM to the child.
Correct Answer is ["38"]
Explanation
To calculate the IV flow rate in gtt/min, the nurse needs to use the following formula: IV flow rate (gtt/min) = Volume (mL) x Drop factor (gtt/mL) / Time (min).
In this case, the volume is 150 mL, the drop factor is 15 gtt/mL, and the time is 60 min.
Plugging these values into the formula, we get: IV flow rate (gtt/min) = 150 x 15 / 60.
Simplifying, we get: IV flow rate (gtt/min) = 37.5.
Therefore, the nurse should set the IV flow rate to deliver 38 gtt/min.
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