A nurse is preparing to administer methotrexate 7.5 mg subcutaneous for a client who has rheumatoid arthritis. Available is methotrexate 15 mg/0.4 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["0.2"]

To calculate the dosage of methotrexate for a client who has rheumatoid arthritis, the nurse needs to use the following formula:

D/H x Q = X, where D is the desired dose, H is the dose on hand, Q is the quantity of the solution, and X is the amount to administer.

In this case, D is 7.5 mg, H is 15 mg, and Q is 0.4 mL.

Plugging these values into the formula, we get: 7.5/15 x 0.4 = 0.2.

Therefore, the nurse should administer 0.2 mL of methotrexate subcutaneously for the client.

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Free Nursing Study Resources

Correct Answer is ["2.1"]

Explanation

To calculate the dosage of tobramycin for a client who weighs 85 kg, first we need to find the total daily dose by multiplying the weight by the dose per kg: 85 kg x 3 mg/kg/day = 255 mg/day.

Then, we need to divide the total daily dose by the number of doses per day to get the dose per administration: 255 mg/day / 3 doses/day = 85 mg/dose.

Finally, we need to use the concentration of the available solution to find the volume per dose by dividing the dose by the concentration: 85 mg/dose / 40 mg/mL = 2.125 mL/dose.

The nurse should administer 2.1 mL of tobramycin per dose to the client.

Correct Answer is ["3"]

Explanation

To calculate the dose of calcitonin for a client who weighs 165 lb, the nurse needs to convert the weight to kilograms first.

One kilogram is equal to 2.2 lb, so the client's weight in kilograms is 165 / 2.2 = 75 kg.

The prescribed dose is 8 units/kg, so the total dose is 8 x 75 = 600 units.

The available concentration is 200 units/mL, so the volume to administer is 600 / 200 = 3 mL.

The nurse should administer 3 mL of calcitonin IM to the client.

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A nurse is preparing to administer methotrexate 7.5 mg subcutaneous for a client who has rheumatoid arthritis. Available is methotrexate 15 mg/0.4 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is ["2.1"]

Explanation

A nurse is preparing to administer calcitonin 8 units/kg IM to a client who weighs 165 lb. Available is 200 units/mL. How many mL 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.)

Correct Answer is ["3"]

Explanation

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