Answer:
To calculate the number of teaspoons that should be given, we need to determine the total volume of Lasix 40 mg prescribed and then convert it to teaspoons based on the concentration provided.
Given:
- Lasix 40 mg is ordered.
- Available is a 120 mg bottle that contains Lasix 10 mg/5mL.
First, we need to calculate the total volume of Lasix 40 mg prescribed. Since the concentration is given as 10 mg/5mL, we can set up a proportion:
40 mg / x mL = 10 mg / 5 mL
To solve for x, we cross-multiply and then divide:
40 mg * 5 mL = 10 mg * x mL
200 mg·mL = 10 mg·mL·x
200 = 10x
x = 200 / 10
x = 20 mL
So, a total volume of 20 mL of Lasix 40 mg is prescribed.
Now, we can convert the volume from milliliters to teaspoons. One teaspoon is approximately equal to 5 mL.
To calculate the number of teaspoons:
20 mL / 5 mL per teaspoon = 4 teaspoons
Therefore, 4 teaspoons of Lasix 40 mg should be given based on the available concentration of Lasix 10 mg/5mL.