What is a key responsibility of a registered nurse regarding drug dosage?

A key responsibility of a registered nurse regarding drug dosage is to calculate and confirm the appropriate dosage for each patient. This involves assessing various factors such as the patient’s weight, age, health status, kidney and liver function, and any potential drug interactions. Nurses must ensure that the prescribed dose aligns with established guidelines and standards for safe medication administration.

Calculating and confirming the dosage helps prevent medication errors, which can lead to serious adverse effects. It also emphasizes the nurse's role in patient safety and ensures that the patient receives the correct medication in the correct amount at the right time.

Other options imply a less rigorous approach to dosage management, such as providing a general estimate based on experience, administering a standard dosage without checks, or relying solely on consultations without independent verification. These practices could compromise patient safety and contradict best practices in pharmacology and nursing care.