Why is knowledge of a patient’s medical history essential in medication administration?

Knowledge of a patient’s medical history is crucial in medication administration primarily to evaluate the appropriateness of treatment. Understanding a patient’s previous illnesses, allergies, and current medications allows healthcare providers to make informed decisions about which medications are safe and effective for that patient. This knowledge helps to prevent adverse drug interactions, ensures that prescribed treatments are suitable for the patient’s specific health conditions, and supports personalized patient care.

By considering a patient’s medical history, clinicians can also determine the correct dosages and select medications that will complement the patient's overall treatment plan, enhancing the likelihood of positive outcomes while minimizing risks.