A Verapamil suspension is made from six tablets of 120 mg each. The recipe calls for each to be crushed and mixed with a small amount of water, the qs to a final volume of 60 mls. What is the final concentration?
A. 12 mg/ml
B. 20 mg/ml
C. 10 mg/ml
D. 60 mg/ml
Concentration = 6*120mg/60mls =
60mg/ml
12mg/ml
To find the final concentration of the Verapamil suspension, we need to calculate the total amount of Verapamil in the suspension and divide it by the final volume.
Each tablet contains 120 mg of Verapamil, and there are six tablets, so the total amount of Verapamil is:
120 mg/tablet * 6 tablets = 720 mg
The final volume of the suspension is given as 60 mL.
To find the concentration, we divide the total amount of Verapamil (720 mg) by the final volume (60 mL):
Concentration = Total amount of Verapamil / Final volume
Concentration = 720 mg / 60 mL
To simplify this, we can convert the mL to L, as 1 mL = 0.001 L:
Concentration = 720 mg / (60 mL * 0.001 L/mL)
Concentration = 720 mg / 0.06 L
Concentration = 12,000 mg/L
Finally, we can convert mg/L to mg/mL by dividing the concentration by 1000:
Concentration = 12,000 mg/L / 1000
Concentration = 12 mg/mL
Therefore, the final concentration of the Verapamil suspension is 12 mg/mL.
The correct answer is A. 12 mg/mL.