Question

The physician prescribes phytonadione (AquaMEPHYTON), 0.5 mg I.M., for a neonate born 30 minutes ago. The nurse has a solution containing 2 mg/ml. How many milliliters of solution should the nurse administer to achieve this dose?

a) 0.25 ml
b) 0.5 ml
c) 1 ml
d) 2 ml

Answer 1

To achieve a dose of 0.5 mg of phytonadione for a neonate, the nurse needs to administer 0.25 ml of the solution.

Step-by-step explanation:

To determine the number of milliliters of solution the nurse should administer to achieve a dose of 0.5 mg of phytonadione, we need to use a proportion. The solution contains 2 mg/ml, so we can set up the proportion:
(0.5 mg)/(2 mg/ml) = x ml/1 ml
Cross-multiplying and solving for x, we get:
x = (0.5 mg * 1 ml) / 2 mg = 0.25 ml