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. Show all work

To find the concentration, we need to determine how many mcg of lanoxin are in 1 ml of the solution.

Given:
- Lanoxin 500mcg per 2ml

To find the concentration, we divide the number of mcg by the number of ml:
500 mcg / 2 ml = 250 mcg/ml

Therefore, the concentration of the lanoxin solution is 250 mcg/ml.

To determine the concentration of the lanoxin solution in the patient's drawer, we need to calculate the number of milligrams (mg) of lanoxin in 1 milliliter (ml) of the solution.

Given:

- Lanoxin concentration: 500 mcg per 2 ml.

First, we need to convert 125 micrograms (mcg) to milligrams (mg). There are 1,000 mcg in 1 mg, so:

125 mcg = 125 / 1,000 = 0.125 mg

Next, we need to determine the concentration in mg per ml. The provided concentration is 500 mcg per 2 ml, so let's convert it to mg per ml.

500 mcg = 500 / 1,000 = 0.5 mg (since 1 mg = 1,000 mcg)
2 ml

To find the concentration in mg per ml, we divide 0.5 mg by 2 ml:

0.5 mg / 2 ml = 0.25 mg/ml

Therefore, the concentration of the lanoxin solution in the patient's drawer is 0.25 mg/ml.