A nurse is preparing to administer diltiazem IV 0.25 mg/kg V bolus given over 2 min to client who has atrial fibrillation and weighs 154 lb. Available is diltiazem IV injection 25 mg/S 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 ["3.5"]
Understanding the Problem
Order: Diltiazem 0.25 mg/kg IV bolus over 2 minutes
Client Weight: 154 lbs
Available Solution: Diltiazem IV injection 25 mg/5 mL
Desired Dose: mL to administer
Step 1: Convert Client Weight to Kilograms (kg)
1 kg = 2.2 lbs
Client Weight in kg: 154 lbs / 2.2 lbs/kg = 70 kg
Step 2: Calculate the Total Dose
Ordered Dose: 0.25 mg/kg
Client Weight: 70 kg
Total Dose: 0.25 mg/kg * 70 kg = 17.5 mg
Step 3: Determine the Concentration of the Diltiazem Solution
Available Diltiazem: 25 mg
Solution Volume: 5 mL
Concentration: 25 mg / 5 mL = 5 mg/mL
Step 4: Calculate the Volume to Administer
Total Dose: 17.5 mg
Concentration: 5 mg/mL
Volume: 17.5 mg / 5 mg/mL = 3.5 mL
Step 5: Round to the Nearest Tenth
The calculated volume is 3.5 mL, which is already to the nearest tenth.
Answer: 3.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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
Correct Answer is ["4.5"]
Explanation
Calculate the Insulin Dose in Units/hr:
Dose = 0.1 units/kg/hr x 45 kg
Dose = 4.5 units/hr
Determine the Insulin Concentration in Units/mL:
Available concentration = 1 unit/mL (given in the problem)
Calculate the Infusion Rate in mL/hr:
Infusion Rate (mL/hr) = Dose in units/hr / Concentration (units/mL)
Infusion Rate (mL/hr) = 4.5 units/hr / 1 unit/mL
Infusion Rate (mL/hr) = 4.5 mL/hr
Round to the Nearest Tenth (if necessary):
4.5 mL/hr
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.