Calculate the amount of drug in a ratio solution. How many micrograms are in 1ml of a 1:5000 solution?
To calculate the amount of drug in a ratio solution, you need to know the ratio and the volume. In this case, the ratio is 1:5000, meaning that there is 1 unit of drug for every 5000 units of solution. The volume is given as 1 ml.
To find the amount of drug in 1 ml of the solution, you can set up a proportion:
1 unit (drug) / 5000 units (solution) = x units (drug) / 1 ml (solution)
To solve for x (the amount of drug in 1 ml), you can cross multiply:
1 unit (drug) * 1 ml (solution) = 5000 units (solution) * x units (drug)
Simplifying this equation, you get:
1 ml = 5000x
To solve for x, divide both sides of the equation by 5000:
x = 1 ml / 5000
Calculating the value, you get:
x = 0.0002 ml
Since 1 ml is equal to 1000 micrograms, multiply 0.0002 ml by 1000 to convert it to micrograms:
0.0002 ml * 1000 micrograms/ml = 0.2 micrograms
Therefore, there are 0.2 micrograms in 1 ml of a 1:5000 solution.