A nurse is caring for a client who has fluid volume excess and received furosemide 40 mg via intermittent IV bolus 1 hr ago. Which of the following findings indicates that the medication has been effective?

Before administering the first dose of metformin, the nurse should evaluate the client's creatinine level. Metformin is primarily excreted by the kidneys, and its clearance from the body depends on the renal function. If the client has impaired kidney function, metformin can accumulate in the body and lead to potential adverse effects, particularly lactic acidosis.

Monitoring the creatinine level helps assess the client's kidney function and determines whether it is safe to administer metformin. If the creatinine level is elevated, indicating reduced kidney function, the nurse should consult with the healthcare provider to determine the appropriate dose adjustment or consider an alternative treatment option.

Let's go through the other options and explain why they are not the priority laboratory results to evaluate before administering metformin:

A. Potassium level: While monitoring potassium levels is important in some situations, it is not a primary concern before administering metformin. Metformin does not have a significant effect on potassium levels, and it is not a medication known for causing hypokalemia (low potassium levels).

C. Platelet count: Metformin does not have a direct impact on platelet count, and evaluating platelet count is not typically required before starting metformin therapy. Platelet count monitoring may be relevant for certain other medications or medical conditions, but it is not specific to metformin administration.

D. Liver enzymes: While it is essential to monitor liver function in clients on long-term metformin therapy, evaluating liver enzymes before the first dose of metformin is not the priority. Metformin is primarily cleared by the kidneys, and liver enzymes are not directly affected by its initial administration. However, ongoing monitoring of liver function may be necessary during long-term

When a medication error occurs, the nurse should report the incident to the nurse manager or appropriate supervisor. It is essential to follow the facility's policies and procedures for reporting and managing medication errors. Prompt reporting allows for appropriate investigation, documentation, and implementation of necessary measures to prevent future errors.

Documenting that the pharmacy sent the incorrect medication (B) is not appropriate in this situation, as it does not address the nurse's role and responsibility in the error. Reporting the incident is the primary action required.

Contacting the provider to change the client's prescription (C) is not necessary in this case, as the error was related to the medication selection during administration, not an issue with the prescription itself.

Placing the unwrapped celecoxib back into the AMDS (D) is not appropriate. Once a medication has been removed from its packaging or container, it should not be returned to the dispensing system. Additionally, since it was the wrong medication for the client, it should not be administered.

Therefore, the nurse should primarily report the incident to the nurse manager or appropriate supervisor to ensure appropriate handling of the medication error.