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A patient who weighs 154 pounds receives a prescription for epoetin alfa 50 units/kg subcutaneously 3 times a week. The medication is available in 2000 units/mL vial. How many mL should the nurse administer with each dose?
(Enter numerical value only. If rounding is required, round to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["0.9"]

The correct answer is 0.9 mL. To find the answer, we can use the following steps:

- Convert the patient's weight from pounds to kilograms by dividing by 2.2

- Multiply the weight in kilograms by the dosage in units/kg

- Divide the dose in units by the concentration in units/mL

- Round the result to the nearest tenth

Using these steps, we get:

- (weight in kg) = (154) / (2.2) = 70 kg

- (dose in units) = (50) x (70) = 3500 units

- (volume in mL) = (3500) / (2000) = 1.75 mL

- (rounded volume in mL) = 1.8 mL

Therefore, the nurse should administer 1.8 mL of epoetin alfa from the vial to the patient.

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Correct Answer is ["2"]

Explanation

To find the answer, we can use the following steps:

- Calculate the volume of loratadine suspension in mL by dividing the dose in mg by the concentration in mg/mL

- Convert the volume in mL to teaspoons by multiplying by 0.2

- Round the result to the nearest whole number

Using these steps, we get:

- (volume in mL) = (10) / (5 / 5) = 10 mL

- (volume in teaspoons) = (10) x (0.2) = 2 teaspoons

- (rounded volume in teaspoons) = 2 teaspoons

Therefore, the nurse should instruct the client to take 2 teaspoons of loratadine suspension.

Correct Answer is ["1"]

Explanation

The correct answer is 1 mL. To find the answer, we can use the following steps:

- Convert the client's weight from pounds to kilograms by dividing by 2.2

- Multiply the weight in kilograms by the dosage in mg/kg

- Divide the dose in mg by the concentration in mg/mL

- Round the result to the nearest whole number

Using these steps, we get:

- (weight in kg) = (176) / (2.2) = 80 kg

- (dose in mg) = (0.05) x (80) = 4 mg

- (volume in mL) = (4) / (4) = 1 mL

- (rounded volume in mL) = 1 mL

Therefore, the nurse should administer 1 mL of lorazepam from the vial to the client.

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Naxlex Comprehensive Predictor Exams

A client receives a prescription for loratadine suspension 10 mg by mouth once a day. The bottle is labeled "Loratadine for Oral Suspension, USP 5 mg per 5 mL." How many teaspoons should the nurse instruct the client to take? (Enter numerical value only.)

Correct Answer is ["2"]

Explanation

A client who weighs 176 pounds receives a prescription for lorazepam 0.05 mg/kg intramuscularly 2 hours before a scheduled procedure. The medication is available in 4 mg/mL vial. How many mL should the nurse administer? (Enter numeric value only.)

Correct Answer is ["1"]

Explanation

Dobutamine hydrochloride 2 mcg/kg/min is prescribed for a client weighing 165 pounds. The solution is mixed with 50 mg of dobutamine in 1,000 mL of D5W. The nurse should set the infusion pump to deliver how many mL/hour? (Enter numeric value only.)

An adult client receives a prescription for diphenhydramine 15 mL by mouth every 12 hours PRN for pruritus. The bottle is labeled, "diphenhydramine 12.5 mg/5 mL." What is the total daily dose in mg that the client receives? (Enter numerical value only.)

The nurse is initiating a 500 mL IV of normal saline at 60 mL/hour for a client with heart failure. How many hours should the IV infuse? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

A client who weighs 60 kg receives a prescription for dalteparin 200 units/kg subcutaneously once a day for a month. The medication is available in 25,000 units/mL vial. How many mL should the nurse administer? (Enter numerical value. If rounding is required, round to the nearest tenth.)

A patient is receiving a secondary infusion of azithromycin 500 mg in 500 mL of normal saline (NS) to be infused over 2 hours. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only.)