MD writes an order for Robitussin AC 100 mg by mouth 3 times per day as needed for cough. Pharmacy dispenses you with 100mg/5ml. How many teaspoons will you administer per dose?
Understand the Problem
The question is asking us to calculate how many teaspoons of Robitussin AC should be administered for each dose based on the prescribed dosage and the concentration provided by the pharmacy.
Answer
The number of teaspoons of Robitussin AC depends on the prescribed dosage and concentration; generally, use $ \text{teaspoons} = \frac{\text{prescribed dosage (mL)}}{5} $.
Answer for screen readers
The answer will depend on the specific values provided for the prescribed dosage and the concentration of Robitussin AC.
For example, if the prescribed dosage is 10 mL and the concentration is 10 mg/mL, then the dose in teaspoons would be:
$$ \text{teaspoons} = \frac{\text{prescribed dosage (mL)}}{5} $$
So,
$$ \text{teaspoons} = \frac{10 \text{ mL}}{5} = 2 \text{ teaspoons} $$
Steps to Solve
- Identify the prescribed dosage
First, we need to find out the prescribed dosage for Robitussin AC. This is usually given in milliliters (mL) or teaspoons.
- Determine the concentration of the medicine
Next, look at the concentration of Robitussin AC that is provided by the pharmacy. This concentration is generally mentioned in mg/mL.
- Convert teaspoons to milliliters
Since we will be working with teaspoons and the prescribed dosage is often in mL, we need to know the conversion.
There are 5 mL in 1 teaspoon.
- Calculate the dosage in teaspoons
If the prescribed dosage is given in mL, convert this amount to teaspoons using the conversion from step 3.
If the dosage is already provided in teaspoons, then we can skip this step.
- Final Dosage Calculation
Multiply or divide as required to find out how many teaspoons of Robitussin AC are needed based on the prescribed dosage and the provided concentration.
The answer will depend on the specific values provided for the prescribed dosage and the concentration of Robitussin AC.
For example, if the prescribed dosage is 10 mL and the concentration is 10 mg/mL, then the dose in teaspoons would be:
$$ \text{teaspoons} = \frac{\text{prescribed dosage (mL)}}{5} $$
So,
$$ \text{teaspoons} = \frac{10 \text{ mL}}{5} = 2 \text{ teaspoons} $$
More Information
The final number of teaspoons needed can vary based on the specific prescribed dosage and concentration of Robitussin AC. Always ensure the dosage is verified according to the patient's needs and the prescribed instructions.
Tips
- Misinterpreting the prescribed dosage if it is expressed in different units (mL vs. teaspoons).
- Not converting correctly between teaspoons and milliliters.
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