You have 30 ml of 1% lidocaine on the shelf. The order calls for 40 mg . How many mL do you need to use?

Answer 1

1. The concentration of lidocaine is given as 1%, which means that there is 1 gram of lidocaine in 100 ml of solution.

To calculate how many milligrams of lidocaine are in 1 ml of solution, we can convert 1% to milligrams per milliliter (mg/ml):

1% = 1 gram per 100 ml 1 gram = 1000 milligrams So, 1% = 10 mg/ml

Now we can use this information to calculate how many ml of the lidocaine solution contain 40 mg of lidocaine:

40 mg ÷ 10 mg/ml = 4 ml

Therefore, you will need to use 4 ml of the 1% lidocaine solution to obtain 40 mg of lidocaine.