A client is ordered ceftazidime 10 mg/kg for each dose IV. The client weighs 90 kg. The drug is available in vials containing 1 Gram of ceftazidime in 12 mL of sterile water. How many millilitres will the nurse withdraw from the vial? (Use a preceding zero if it applies. Do not use trailing zeros. Round to the nearest tenth)
The Correct Answer is ["10.8"]
Calculate the total dose in mg:
The client weighs 90 kg and the dose is 10 mg/kg.
Total dose = 90 kg x 10 mg/kg = 900 mg
Convert the drug available to mg:
The vial contains 1 gram of ceftazidime.
1 gram = 1000 mg
Determine the concentration of the drug in mg/mL:
The vial has 1000 mg of ceftazidime in 12 mL of sterile water.
Concentration = 1000 mg / 12 mL = 83.33 mg/mL
Calculate the volume to withdraw in mL:
Use the concentration as a conversion factor:
Volume (mL) = Total dose (mg) / Concentration (mg/mL) Volume (mL) = 900 mg / 83.33 mg/mL = 10.8 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["500"]
Explanation
Calculate the total IV fluid intake:
Main IV Fluid:
From 2300 to 0000: 1 hour x 200 mL/hr = 200 mL
From 0000 to 0100: 1 hour x 200 mL/hr = 200 mL
From 0200 to 0600: 4 hours x 200 mL/hr = 800 mL
Antibiotic IV Fluid:
Administered at 0000: 150 mL
Total IV Intake: 200 mL + 200 mL + 800 mL + 150 mL = 1350 mL
Calculate the total output:
Urine output: 850 mL (given)
Calculate the fluid balance:
Fluid Balance = Total Intake - Total Output
Fluid Balance = 1350 mL - 850 mL = 500 mL
Correct Answer is ["25"]
Explanation
Convert the client's weight from pounds to kilograms:
1 lb = 0.454 kg
Weight in kg = 220 lbs x 0.454 kg/lb = 99.88 kg (approximately 100 kg)
Calculate the total daily dose of Methylprednisolone:
Daily dose = 1.5 mg/kg x 100 kg = 150 mg
Calculate the dose per administration:
The daily dose is divided into four equal doses.
Dose per administration = 150 mg / 4 = 37.5 mg
Determine the concentration of the Methylprednisolone:
The medication is supplied as 7.5 mg per 5 mL.
Concentration = 7.5 mg / 5 mL = 1.5 mg/mL
Calculate the volume (in mL) to administer per dose:
Use the concentration as a conversion factor:
Volume (mL) = Dose per administration (mg) / Concentration (mg/mL) Volume (mL) = 37.5 mg / 1.5 mg/mL = 25 mL
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