Final answer:
The PT info for Robitussin and Robitussin DM includes age, weight, symptoms, and allergies. All of these factors are important when determining the appropriate dosage and medication for the patient.
Step-by-step explanation:
The PT info for Robitussin and Robitussin DM includes age and weight, as these factors determine the appropriate dosage for each patient. Age is especially important, as certain medications may not be safe for children under a certain age.
Additionally, the patient's symptoms and allergies are important to consider when choosing the right medication. For example, if a patient has allergies to certain ingredients, they should avoid medications that contain those ingredients.
Therefore, the correct answer is D) All of the above, as all of these factors are relevant when determining the appropriate PT info for Robitussin and Robitussin DM.