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.)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["10"]
Explanation
To calculate the dose of amoxicillin oral suspension for a client, the nurse needs to use the following formula: Dose (mL) = Desired dose (mg) / Available dose (mg/mL) x Volume (mL).
In this case, the desired dose is 500 mg, the available dose is 250 mg/5 mL, and the volume is 5 mL.
Therefore, the dose (mL) = 500 mg / (250 mg/5 mL) x 5 mL = 10 mL.
The nurse should administer 10 mL of amoxicillin oral suspension to the client.
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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