What two questions should you ask a client regarding their pet's medications?

The most pertinent option to ask regarding a pet's medications relates to the preventive care being administered, particularly heartworm and flea/tick prevention. Understanding whether a pet is currently receiving these medications is critical because it directly impacts the animal's health and potential treatment protocols. Heartworm disease and infestations by fleas or ticks can lead to serious health problems, so confirming the use of these preventive medications helps ensure that the pet is protected against common yet dangerous conditions.

The other options, while relevant to the overall health and care of the pet, do not directly address medication use. For instance, dietary considerations are important but pertain more to nutrition than medicinal treatment. Asking about allergies to medications is certainly valuable; however, it typically assumes prior medication exposure. Likewise, vaccination status is crucial for overall health but does not specifically relate to the discussion of current medications being used to prevent disease. Thus, the focus on preventive medications like heartworm and flea/tick treatments stands out as the most significant inquiry for the immediate concern of medications.