Rn Hesi Dosage Calculations III Proctored Exam
Calculation
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.)
mg/mL
Explanation & Rationale
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.
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