A physician orders dolasetron (Anzemet) 1.8 mg/kg IV for prevention of chemotherapy-induced nausea and vomiting. Dolasetron (Anzemet) is available in a 20 mg/mL vial. How many milliliters will be prepared and administered per dose to a 134-lb client?
not to sure, please help
To calculate the number of milliliters (mL) to be prepared and administered per dose, we need to follow these steps:
Step 1: Convert the client's weight from pounds to kilograms.
The conversion factor is 2.2 lbs = 1 kg.
134 lbs ÷ 2.2 lbs/kg = 60.91 kg
Rounding to the nearest hundredth, the client's weight is approximately 60.91 kg.
Step 2: Calculate the dose of dolasetron (Anzemet) in milligrams (mg).
The physician ordered a dose of 1.8 mg/kg. Multiply the client's weight in kilograms by the dose per kilogram.
1.8 mg/kg × 60.91 kg = 109.64 mg
Rounding to the nearest whole number, the dose is approximately 110 mg.
Step 3: Determine the amount of dolasetron (Anzemet) to be prepared and administered in milliliters (mL).
The concentration of dolasetron (Anzemet) is 20 mg/mL. Divide the dose in milligrams by the concentration.
110 mg ÷ 20 mg/mL = 5.5 mL
Therefore, 5.5 mL will be prepared and administered per dose to the 134-lb client.