Final answer:
The nurse should administer 0.25 mL of the Vitamin K solution. Therefore, the nurse should administer 0.25 mL of the Vitamin K solution.
Step-by-step explanation:
To determine how many mL the nurse should administer, we can use the given information that 1 mL of the vial contains 2 mg of Vitamin K.
Since the prescribed dosage is 0.5 mg, we need to find out how much mL is equivalent to 0.5 mg.
We can set up a proportion using the given information:
1 mL / 2 mg = x mL / 0.5 mg
Cross-multiplying, we get:
2 mg * x mL = 0.5 mg * 1 mL
Simplifying, we find that x = 0.25 mL.
Therefore, the nurse should administer 0.25 mL of the Vitamin K solution.