Ceftazidime 750 mg IV every 12 hours is prescribed for a client with an infection. The directions on the label of the 750 mg vial instruct the nurse to reconstitute with 100 mL sterile water. The reconstituted medication provides how many mg/mL? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["7.5"]
Here's how to calculate the concentration (mg/mL) of the reconstituted ceftazidime medication
Medication: 750 mg ceftazidime
Diluent: 100 mL sterile water (for reconstitution)
We need to find the concentration (mg/mL) after reconstituting the medication with diluent.
Calculation:
Concentration (mg/mL) = Total medication (mg) / Volume of diluent (mL)
Concentration (mg/mL) = 750 mg / 100 mL
Concentration (mg/mL) = 7.5 mg/mL (round to nearest tenth)
Therefore, the reconstituted medication will have a concentration of 7.5 mg/mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.64"]
Explanation
Here's the calculation to determine the volume to administer:
Prescribed dose: 40 mg methylprednisolone
Medication vial concentration: 125 mg per 2 mL (given on the vial label)
We need to find the volume (mL) containing the prescribed dose (40 mg) of methylprednisolone.
Calculation:
Volume to administer (mL) = Dose (mg) / Concentration (mg/mL)
Since the concentration is given in mg per 2 mL, we need to adjust it to mg/mL for accurate calculation:
Concentration (mg/mL) = Total mg / Volume (mL)
Concentration (mg/mL) = 125 mg / 2 mL
Concentration (mg/mL) = 62.5 mg/m
Now, with the concentration in mg/mL, we can calculate the volume to administer:
Volume to administer (mL) = 40 mg / 62.5 mg/mL
Volume to administer (mL) = 0.64 mL (round to nearest hundredth as requested)
Therefore, the nurse should administer 0.64 mL of methylprednisolone.
Correct Answer is ["4.8"]
Explanation
The vial is labeled as “100 mg per 4 mL.”
This means that each mL contains 25 mg of the medication (100 mg / 4 mL = 25 mg/mL).
The nurse needs to administer 120 mg of the medication.
To find out how many mL this is, we divide the dose by the concentration:
VolumeinmL = 120mg / 25mg/mL = 4.8mL
If rounding is required to the nearest tenth, the nurse should administer 4.8 mL of the medication.
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.