How would you make a 1000ml soln of 5% dextrose in LRS from 100ml of 50% dextrose and 1000ml of LRS
To make a 1000ml solution of 5% dextrose in LRS (Lactated Ringer's Solution) using 50% dextrose and LRS, you need to determine how much of each component is required.
Here's how you can calculate it:
1. Determine the desired amount of dextrose in the final solution:
5% of 1000ml = (5/100) x 1000ml = 50 grams
2. Calculate the amount of pure dextrose needed to provide 50 grams of dextrose:
Let's assume the 'x' represents the amount of 50% dextrose needed.
50% of x = 50 grams
(50/100) x = 50 grams
x = (50 grams) / (50/100) = 100 grams
So, you need 100 grams of 50% dextrose.
3. Calculate the amount of LRS needed:
The total volume of the solution is 1000ml, and you already have 100ml of 50% dextrose.
Therefore, the remaining volume of LRS required is:
1000ml - 100ml = 900ml
To make a 1000ml solution of 5% dextrose in LRS, you would need 100 grams of 50% dextrose and 900ml of LRS.
Please note that these calculations assume that the dextrose concentration given is w/v (weight/volume) and LRS doesn't contain any dextrose. It is always important to follow specific instructions or consult a healthcare professional when preparing medical solutions.