The physician ordered Cefprozil 87.5 mg po q12h for 10 days. What is the amount to administer?
The Correct Answer is ["3.5"]
Ordered dose = 87.5 mg.
- Determine the concentration of the available medication from the label.
The label states that the concentration is 125 mg/5 mL.
Concentration = 125 mg / 5 mL
= 25 mg/mL.
- Calculate the volume to administer per dose using the formula:
Volume (mL) = Desired dose (mg) / Concentration (mg/mL)
= 87.5 mg / 25 mg/mL
= 3.5 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["6.55"]
Explanation
- Convert the patient's weight from pounds (lb) to kilograms (kg)
Patient's weight in kg = 54 lb / 2.2 lb/kg
= 24.5454 kg.
- Calculate the total daily dose in milligrams (mg).
Total daily dose = Ordered dose (mg/kg/day) × Patient's weight (kg)
= 40 mg/kg/day × 24.5454 kg
= 981.816 mg/day.
- Calculate the dose per administration (since the medication is given "q8h," which is 3 doses/day).
Dose per administration = Total daily dose (mg/day) / 3 doses/day
= 981.816 mg / 3
= 327.272 mg/dose.
- Determine the concentration of the available medication.
Available is 250 mg in 5 mL.
Concentration = 250 mg / 5 mL
= 50 mg/mL.
- Calculate the volume in milliliters (mL) to administer per dose.
Volume (mL) = Dose per administration (mg) / Concentration (mg/mL)
= 327.272 mg / 50 mg/mL
= 6.5454 mL/dose.
- Round the answer to the nearest hundredth.
= 6.55 mL/dose.
Correct Answer is B
Explanation
A. 6:00 p.m.: This time is 12 hours after the last dose was administered. The medication order specifies a frequency of "q6h," which means the medication can be given every six hours. A twelve-hour interval is twice as long as the prescribed time.
B. 12:00 noon: To determine the next possible dose time, you must add 6 hours to the time of the last dose. The last dose was given at 0600 (6:00 a.m.), and adding 6 hours results in 1200 (12:00 noon) as the earliest possible time for the next dose.
C. 3:00 p.m.: This time is 9 hours after the last dose was administered. The prescribed frequency of "q6h" indicates that the medication can be given at an interval of 6 hours. Waiting 9 hours would not be in compliance with the medication order.
D. 9:00 a.m.: This time is only 3 hours after the last dose was administered. The medication order of "q6h" requires a minimum of 6 hours to pass between doses. Administering the medication at 9:00 a.m. would violate the prescribed frequency.
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