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A child with a seizure disorder receives a prescription for phenytoin 20 mg by mouth every 8 hours. The suspension is available in 125 mg/5 mL. How many mL should the nurse administer? (Enter the numerical value only. If rounding is required, round to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["0.8 mL"]

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

(mL to be administered) = (mg prescribed) / (mg per mL)

Substituting the given values, we get:

(mL to be administered) = (20) / (125 / 5)

Simplifying, we get:

(mL to be administered) = (20) x (5 / 125)

(mL to be administered) = 0.8

Therefore, the nurse should administer 0.8 mL of phenytoin suspension to the child.

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Correct Answer is ["0.9 mL"]

Explanation

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.

Correct Answer is ["6 mL\/hour"]

Explanation

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

- Convert the dosage of oxytocin from milliunits/min to units/hour by multiplying by 60

- Calculate the concentration of oxytocin in the IV bag by dividing the amount of oxytocin by the volume of solution

- Divide the dosage of oxytocin by the concentration of oxytocin in the IV bag to get the volume to be delivered

Using these steps, we get:

- (dosage of oxytocin in units/hour) = (2) x (60) = 120 milliunits/hour

- (concentration of oxytocin in IV bag) = (20) / (1000) = 0.02 units/mL

- (volume to be delivered in mL/hour) = (120 x 10^-3) / (0.02) = 6 mL/hour

Therefore, the nurse should program the infusion pump to deliver 6 mL/hour of oxytocin in lactated Ringer's to the patient.

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A child with a seizure disorder receives a prescription for phenytoin 20 mg by mouth every 8 hours. The suspension is available in 125 mg/5 mL. How many mL should the nurse administer? (Enter the numerical value only. If rounding is required, round to the nearest tenth.)

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["0.9 mL"]

Explanation

A patient receives a prescription for oxytocin 2 milliunits/min intravenously (IV) for labor augmentation. The IV bag contains oxytocin 20 units in lactated Ringer's 1 liter. How many mL/hour should the nurse program the infusion pump to deliver? (Enter numerical value only.)

Correct Answer is ["6 mL\/hour"]

Explanation

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