A nurse is preparing to administer midazolam 0.03 mg/kg IM to a client who weighs 110 lb. Available is midazolam 1 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.)
The Correct Answer is ["1.5"]
Understanding the Problem
Order: Midazolam 0.03 mg/kg IM
Client Weight: 110 lbs
Available Solution: Midazolam 1 mg/mL
Desired Dose: mL to administer
Step 1: Convert Client Weight to Kilograms (kg)
1 kg = 2.2 lbs
Client Weight in kg: 110 lbs / 2.2 lbs/kg = 50 kg
Step 2: Calculate the Total Dose
Ordered Dose: 0.03 mg/kg
Client Weight: 50 kg
Total Dose: 0.03 mg/kg x 50 kg = 1.5 mg
Step 3: Calculate the Volume to Administer
Total Dose: 1.5 mg
Concentration: 1 mg/mL
Volume: 1.5 mg / 1 mg/mL = 1.5 mL
Step 4: Round to the Nearest Tenth
The calculated volume is 1.5 mL, which is already to the nearest tenth.
Answer: 1.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["25"]
Explanation
Identify the Total Volume and Infusion Time:
Total Volume: 100 mL
Infusion Time: 4 hours
Calculate the Infusion Rate (mL/hr):
We need to find out how many mL should be infused per hour.
We can use the following formula:
Infusion Rate (mL/hr) = Total Volume (mL) / Infusion Time (hours)
Plug in the Values and Calculate:
Infusion Rate (mL/hr) = 100 mL / 4 hours
Infusion Rate (mL/hr) = 25 mL/hr
Round to the Nearest Whole Number (if necessary):
25 mL/hr
Correct Answer is ["0.2"]
Explanation
Convert the Client's Weight from Pounds to Kilograms:
1 kg = 2.205 lbs
Weight in kg = 138 lbs / 2.205 lbs/kg
Weight in kg ≈ 62.585 kg
Calculate the Total Dose of Darbepoetin Needed:
Dose = 0.75 mcg/kg x 62.585 kg
Dose ≈ 46.93875 mcg
Calculate the Volume of Darbepoetin to Administer:
Available concentration = 60 mcg/0.3 mL
To simplify, find the concentration per 1 mL: 60 mcg / 0.3 mL = 200 mcg/mL
Volume (mL) = Desired dose (mcg) / Available concentration (mcg/mL)
Volume (mL) = 46.93875 mcg / 200 mcg/mL
Volume (mL) ≈ 0.23469 mL
Round to the Nearest Tenth:
0.2 mL
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