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Zorluk: KolayPharmacological and Parenteral Therapies

A nurse is preparing to administer ondansetron 4 mg4 \text{ mg} via intravenous (IV) push to a client experiencing nausea. The medication vial is labeled 2 mg/mL2 \text{ mg/mL}. How many milliliters (mL) should the nurse administer?

  1. 2 mL2 \text{ mL}Cevap
  2. B
    0.5 mL0.5 \text{ mL}
  3. C
    4 mL4 \text{ mL}
  4. D
    8 mL8 \text{ mL}

Cevap

2 mL2 \text{ mL}
The correct volume is calculated by taking the desired dose (4 mg4 \text{ mg}), dividing it by the available concentration (2 mg2 \text{ mg}), and multiplying by the volume (1 mL1 \text{ mL}). This mathematically evaluates to 2 mL2 \text{ mL}, which is the correct volume to administer the prescribed dose.

Adım Adım Çözüm

1
Identify the prescribed dose (Desired) and the available concentration (Have).
Desired = 4 mg4 \text{ mg}, Have = 2 mg2 \text{ mg} in 1 mL1 \text{ mL}.
These values are needed for the standard dosage calculation formula.
2
Apply the dosage calculation formula: (Desired / Have) ×\times Volume.
(4 mg/2 mg)×1 mL=2 mL(4 \text{ mg} / 2 \text{ mg}) \times 1 \text{ mL} = 2 \text{ mL}.
This determines the exact volume of medication to administer to deliver the prescribed dose safely.

Anahtar Kavram

Intravenous Medication Dosage Calculation
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