Question

Difficulty: MediumPharmacological Therapies

A practical nurse (PN) is caring for an adult client with a history of a seizure disorder. The client has no known allergies and their morning vital signs are stable. The provider's prescription states: "phenytoin 300300 mg, PO, every 1212 hours." The pharmacy supplies the medication in a liquid suspension labeled "phenytoin 250250 mg / 55 mL." Which of the following actions should the PN take to safely administer this medication?

  1. Verify the client's identity using their full name and date of birth, then administer 66 mL of the suspension.Answer
  2. B
    Scan the client's identification band and the medication barcode, then administer 1.21.2 mL of the suspension.
  3. C
    Ask the client to confirm their name and date of birth, then administer 4.24.2 mL of the suspension.
  4. D
    Confirm the client's identity by checking the room number and bed assignment, then administer 66 mL of the suspension.

Answer

The practical nurse should verify the client's identity using their full name and date of birth, then administer 66 mL of the suspension.
Safe medication administration requires fulfilling all the 'rights' of medication administration. First, the practical nurse must calculate the correct dosage. Using the formula DesiredHave×Quantity\frac{\text{Desired}}{\text{Have}} \times \text{Quantity}, the calculation is 300 mg250 mg×5 mL=6 mL\frac{300 \text{ mg}}{250 \text{ mg}} \times 5 \text{ mL} = 6 \text{ mL}. Second, the nurse must verify the 'right client' using at least two distinct, acceptable identifiers. The client's full name and date of birth are standard, safe identifiers. Therefore, the option that combines the accurate 66 mL dose with these valid identifiers is the only safe and correct action.

Step-by-Step Solution

1
Determine the correct medication dosage using the standard calculation formula: DesiredHave×Quantity\frac{\text{Desired}}{\text{Have}} \times \text{Quantity}.
300 mg250 mg×5 mL=1.2×5 mL=6 mL\frac{300 \text{ mg}}{250 \text{ mg}} \times 5 \text{ mL} = 1.2 \times 5 \text{ mL} = 6 \text{ mL}.
Accurate dose calculation is a critical component of the 'right dose' principle in medication administration.
2
Identify the proper method for verifying the right client before administration.
Select two acceptable patient identifiers, such as the client's full name, date of birth, or medical record number.
National patient safety standards strictly prohibit the use of room numbers or bed assignments to identify a client.

Key Concept

Safe medication administration involves both precise dosage calculation and strict adherence to the rights of medication administration, including proper client identification.
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