In an emergency situation you are asked to make up a syringe of ephidrine. You have an ampoule containing 30 mg in 1 mL, and need to make this up to a total volume of 10 mL.

How much sodium chloride 0.9% would you add?

Respuesta :

Answer:

The ephedrine solution alone will fill the syringe to the desired volume of 10 mL.

Step-by-step explanation:

To make up a syringe of ephedrine with a total volume of 10 mL, you'll need to calculate the amount of sodium chloride 0.9% solution to add. First, determine the amount of ephedrine required for the final volume.

The ampoule contains 30 mg of ephedrine in 1 mL. So, for a total volume of 10 mL, you'll need 30 mg × 10 mL = 300 mg of ephedrine.

Next, calculate the volume of the ephedrine solution needed. Since the concentration is 30 mg in 1 mL, you'll need 300 mg ÷ 30 mg/mL = 10 mL of the ephedrine solution.

To make up the remaining volume with sodium chloride 0.9%, subtract the volume of the ephedrine solution from the total volume:

10 mL (total volume) - 10 mL (ephedrine solution volume) = 0 mL

Since the difference is 0 mL, you don't need to add any additional sodium chloride 0.9% solution. The ephedrine solution alone will fill the syringe to the desired volume of 10 mL.