If Guaifenesin (Robitussin) 300 mg is prescribed, how many milliliters should the nurse administer for each dose?

If Guaifenesin (Robitussin) 300 mg is prescribed, how many milliliters should the nurse administer for each dose?

• A. 10 mL
• B. 5 mL
• C. 7.5 mL
• D. 15 mL

Answer: (C)

To determine the appropriate volume of Guaifenesin to administer when a 300 mg dose is prescribed, it’s important to consider the concentration of the medication available. Guaifenesin is commonly available in a liquid formulation with a concentration of 100 mg per 5 mL. To calculate the required volume for a 300 mg dose, a conversion can be performed: 1. First, note that 100 mg of Guaifenesin is found in 5 mL. 2. To find out how many mL correspond to 300 mg, you can set up a proportion or a simple calculation: \[ \text{If } 100 \text{ mg} = 5 \text{ mL} \] \[ 300 \text{ mg} = x \text{ mL} \] This leads to the calculation: \[ x = \frac{300 \text{ mg} \times 5 \text{ mL}}{100 \text{ mg}} = 15 \text{ mL} \] Thus, for a dose of 300 mg, the nurse should administer 15 mL. This

To determine the appropriate volume of Guaifenesin to administer when a 300 mg dose is prescribed, it’s important to consider the concentration of the medication available. Guaifenesin is commonly available in a liquid formulation with a concentration of 100 mg per 5 mL.

To calculate the required volume for a 300 mg dose, a conversion can be performed:

1. First, note that 100 mg of Guaifenesin is found in 5 mL.

2. To find out how many mL correspond to 300 mg, you can set up a proportion or a simple calculation:

[

\text{If } 100 \text{ mg} = 5 \text{ mL}

]

[

300 \text{ mg} = x \text{ mL}

]

This leads to the calculation:

[

x = \frac{300 \text{ mg} \times 5 \text{ mL}}{100 \text{ mg}} = 15 \text{ mL}

]

Thus, for a dose of 300 mg, the nurse should administer 15 mL. This