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A nurse is preparing to administer ondansetron 0.15 mg/kg IV to a client who weighs 132 lb. Available is ondansetron 2 mg/ml. How many ml. should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Answer and Explanation

The Correct Answer is ["4.5"]

To calculate the mL of ondansetron to administer, follow these steps:
    Convert the client's weight from pounds (lb) to kilograms (kg):
    Client's weight in kg = Client's weight in lb / 2.2 Client's weight in kg = 132 lb / 2.2 ≈ 60 kg
    
    Determine the total dosage required based on the client's weight:
    Total dosage = Client's weight in kg × Dosage (mg/kg) Total dosage = 60 kg × 0.15 mg/kg = 9 mg
    
    Determine the mL to administer based on the available concentration:
    Concentration (mg/mL) = 2 mg / 1 mL = 2 mg/mL
    
    Calculate the mL to administer:
    mL to administer = Total dosage (mg) / Concentration (mg/mL) mL to administer = 9 mg / 2 mg/mL = 4.5 mL
    
Round the answer to the nearest tenth:
The nurse should administer 4.5 mL of ondansetron.


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Correct Answer is C

Explanation

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● This prescription is appropriate for a stool softener (Docusate sodium) commonly used to prevent or treat constipation. It's a standard dosage and administration for this type of medication and doesn't require further clarification.

b. Meloxicam 15 mg PO daily
● Meloxicam is a nonsteroidal anti-inflammatory drug (NSAID) used for pain and inflammation. This prescription indicates a standard dosage and administration for this medication and doesn't require further clarification.

c. Regular insulin 8 units subcutaneous before mealsRegular insulin 8 units subcutaneous before meals is a vague and potentially dangerous prescription. The dose of insulin should be individualized based on the client's blood glucose level, carbohydrate intake, and activity level.A prescription for "before meals" without a sliding scale or specific blood glucose parameters is incomplete and potentially dangerous The nurse should contact the provider for clarification on how to adjust the dose according to the client's needs.

d. Fentanyl 25 mcg/hr transdermal patch
● Fentanyl patches are commonly used for chronic pain management. A dose of 25 mcg/hr is within the standard dosing range for patients who are opioid-tolerant. No clarification is typically needed for this prescription.

Correct Answer is ["150"]

Explanation

To calculate the IV pump rate, you need to divide the total volume (1,200 ml) by the total infusion time (8 hours). Here's the calculation:

IV Pump Rate (ml/hr) = Total Volume (ml) / Total Infusion Time (hr)

IV Pump Rate (ml/hr) = 1,200 ml / 8 hr

IV Pump Rate (ml/hr) = 150 ml/hr

So, the nurse should set the IV pump to deliver 150 ml/hr.

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