Question

A nurse is preparing to administer cefazolin 1g IM daily. The nurse...

A nurse is preparing to administer cefazolin 1g IM daily. The nurse reconstitutes a 1 g vial of cefazolin with sterile water to yield a final concentration of 750 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.)

a. 1.6 ML
b. 2 ML
c. 1.3 mL
d. 1.2 ML

Answer 1

The nurse should administer 1.3 mL of the reconstituted cefazolin solution with a concentration of 750 mg/mL to deliver a dose of 1g. The correct answer is option: c. 1.3 mL

Step-by-step explanation:

To calculate the amount of cefazolin the nurse should administer, we can use the formula:

Dose = Concentration × Volume

Given that the concentration of the reconstituted solution is 750 mg/mL and we want to administer 1 g (1000 mg) of cefazolin, we can rearrange the formula to solve for volume:

Volume = Dose / Concentration

Volume = 1000 mg / 750 mg/mL

= 1.33 mL (rounded to the nearest tenth)

Therefore, the nurse should administer 1.3 mL.