A client is receiving ketorolac IM 45 mg every 6 hours for postoperative pain. The available 2 mL vial is labeled, "Ketorolac IM 30 mg/mL." How many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["1.5"]
Given:
Ordered dose of Ketorolac: 45 mg IM every 6 hours
Concentration of Ketorolac: 30 mg/mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
45 mg / Volume = 30 mg/mL
Step 3: Solve for the unknown volume:
Volume = 45 mg / (30 mg/mL)
Volume = 45 mg x (1 mL / 30 mg)
Volume = 1.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["30"]
Explanation
Given:
Total insulin in solution: 100 units
Volume of solution: 250 mL
Infusion rate: 12 units/hour
Step 1: Determine the concentration of insulin in the solution:
Concentration (units/mL) = Total insulin (units) / Volume of solution (mL)
Concentration (units/mL) = 100 units / 250 mL
Concentration (units/mL) = 0.4 units/mL
Step 2: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Infusion rate (units/hr) / Concentration (units/mL)
Infusion rate (mL/hr) = 12 units/hr / 0.4 units/mL
Infusion rate (mL/hr) = 30 mL/hr
Correct Answer is ["0.2"]
Explanation
Given:
Ordered dose of Atropine Sulfate: 0.01 mg/kg
Child's weight: 44 pounds
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 44 lbs x 0.453592 kg/lb = 19.958 kg
Step 2: Calculate the total dose of Atropine Sulfate:
Total dose (mg) = Ordered dose (mg/kg) x Child's weight (kg)
Total dose (mg) = 0.01 mg/kg x 19.958 kg
Total dose (mg) = 0.19958 mg
Step 3: Round to the nearest tenth:
Total dose (mg) ≈ 0.2 mg
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