A practical nurse is preparing to administer a scheduled dose of gabapentin 300\text{ mg} … — NCLEX-PN

A practical nurse is preparing to administer a scheduled dose of gabapentin $300\text{ mg}$ PO to a client with neuropathic pain. The medication is supplied as an oral solution with a concentration of $250\text{ mg}/5\text{ mL}$ . How many milliliters should the nurse administer? (Record answer as a whole number. Do not include units in answer.)

Answer: 6 mL

Answer

To determine the correct volume to administer, the nurse uses the formula: (Desired / Have) \times Quantity. The desired dose is

300\text{ mg}

, the available dose (Have) is

250\text{ mg}

, and the Quantity is

5\text{ mL}

. Therefore,

(300\text{ mg} / 250\text{ mg}) \times 5\text{ mL} = 1.2 \times 5\text{ mL} = 6\text{ mL}

. The practical nurse should administer

6\text{ mL}

of the gabapentin oral solution.

Step-by-Step Solution

Identify the prescribed dose and the available concentration.

Prescribed dose =

300\text{ mg}

; Available concentration =

250\text{ mg}

5\text{ mL}

These values are required to set up the dosage calculation formula accurately.

Apply the basic dosage calculation formula: (Desired / Have) \times Quantity.

\left( \frac{300\text{ mg}}{250\text{ mg}} \right) \times 5\text{ mL}

This formula determines the correct volume of medication to administer to achieve the prescribed dose.

Perform the calculation.

1.2 \times 5\text{ mL} = 6\text{ mL}

Mathematical computation provides the final volume in milliliters to administer.

Key Concept

Oral Dosage Calculation

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