Order: [tex]ABC \, 1.5 \, g[/tex].
Stock: [tex]ABC \, 2500 \, mg / 2 \, mL[/tex].

How many mL will you give?

a. [tex]\quad 1 \, mL[/tex]
b. 0.1
c. [tex]\quad 0.6 \, mL[/tex]
d. 1.2 mL



Answer :

To determine how many milliliters (mL) to administer based on the given order and stock information, follow these steps:

1. Understand the Given Information:
- The dose ordered is 1.5 grams (g) of drug [tex]\(A B C\)[/tex].
- The stock concentration is 2500 milligrams (mg) of [tex]\(A B C\)[/tex] in 2 milliliters (mL) of solution.

2. Convert the Dose Ordered to Milligrams:
- Since 1 gram (g) equals 1000 milligrams (mg), convert the ordered dose from grams to milligrams.
- [tex]\(1.5 \, \text{g} \times 1000 = 1500 \, \text{mg}\)[/tex]

3. Determine the Volume Needed:
- Use the stock concentration to find out how many milliliters contain the required dose.
- The stock concentration states that 2500 mg is contained in 2 mL.
- Set up a proportion to solve for the required volume (V) that contains 1500 mg:
[tex]\[ \frac{2500 \, \text{mg}}{2 \, \text{mL}} = \frac{1500 \, \text{mg}}{V \, \text{mL}} \][/tex]

4. Solve the Proportion:
- Cross-multiply and solve for [tex]\(V\)[/tex]:
[tex]\[ 2500 \, \text{mg} \times V = 1500 \, \text{mg} \times 2 \, \text{mL} \][/tex]
[tex]\[ 2500V = 3000 \][/tex]
[tex]\[ V = \frac{3000}{2500} \][/tex]

5. Calculate the Volume:
- Simplify the division:
[tex]\[ V = 1.2 \, \text{mL} \][/tex]

The correct volume to administer is 1.2 mL. Therefore, the answer is:

d. [tex]\(\quad 1.2 \, \text{mL}\)[/tex]