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A nurse is preparing to administer phenytoin extended release 300 mg PO daily.

Available is phenytoin 100 mg capsules.

How many capsules 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.). capsule(s).
Answer and Explanation

The Correct Answer is ["3"]

Step 1 is to determine the total amount of medication needed. The doctor ordered 300 mg of phenytoin and each capsule contains 100 mg. So, we divide the total amount ordered by the amount per capsule: 300 mg ÷ 100 mg/capsule = 3 capsules. 

So, the correct answer is 3 capsules.


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Related Questions

Correct Answer is ["1.2"]

Explanation

Step 1 is to convert the client’s weight from pounds to kilograms since the dosage is ordered in mg/kg. There are approximately 2.2 lb/kg, so 165 lb ÷ 2.2 lb/kg = 75 kg. The doctor ordered phenobarbital at a dosage of 2 mg/kg/day divided into 2 equal doses, so we multiply the client’s wei

Step 1 is to convert the client’s weight from pounds to kilograms since the dosage is prescribed in mg/kg. Given that 1 kg = 2.2 lb, we calculate:

165 lb ÷ 2.2 lb/kg = 75 kg

Step 2 is to determine the total daily dose of phenobarbital. The doctor ordered 2 mg/kg/day, divided into 2 equal doses. So, we first calculate the total daily dose:

75 kg × 2 mg/kg/day = 150 mg/day

Since the medication is to be given in 2 equal doses, we divide:

150 mg/day ÷ 2 = 75 mg/dose

Step 3 is to determine the volume to administer. The medication has a concentration of 65 mg/mL, so we divide the required dose by the concentration:

75 mg ÷ 65 mg/mL = 1.15 mL

Rounding to the nearest tenth, the correct amount to administer is 1.2 mL.

ght in kg by the dosage and divide by 2: (75 kg × 2 mg/kg/day) ÷ 2 = 75 mg/dose. The medication is available at a concentration of 65 mg/mL, so we divide the total mg needed per dose by the mg per mL: 75 mg ÷ 65 mg/mL = 1.15 mL.

So, the correct answer is 1.2 mL.

Correct Answer is ["1.5"]

Explanation

Step 1 is to calculate the volume to administer using the formula:

Dose (mg) ÷ Concentration (mg/mL)

Given that the prescribed dose is 1.5 mg and the available concentration is 1 mg/mL, we calculate:

1.5 mg ÷ 1 mg/mL = 1.5 mL

Since the result is already rounded to the nearest tenth, the nurse should administer 1.5 mL of oxymorphone.

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