The doctor orders lanoxin 125 mcg po qd. The nurse finds the following in the patient’s drawer: lanoxin 500mg mcg per 2ml. What is the concentration
The concentration of the lanoxin in the vial is 500 mg per 2 ml.
To determine the concentration of the lanoxin solution, we need to find out how many milligrams (mg) of lanoxin are present in 1 milliliter (ml) of solution.
Given that the lanoxin solution contains 500 mcg (micrograms) of lanoxin per 2 ml, we can calculate the concentration as follows:
First, convert 500 mcg to milligrams (mg):
500 mcg = 500/1000 mg = 0.5 mg
Now, we know that there are 0.5 mg of lanoxin in 2 ml of solution.
To find the concentration in milligrams per milliliter (mg/ml), divide the amount of lanoxin (0.5 mg) by the volume of solution (2 ml):
0.5 mg / 2 ml = 0.25 mg/ml
Therefore, the concentration of lanoxin in the provided solution is 0.25 mg/ml.