A nurse is preparing to administer a medication to a client for the first time and needs to know about potential food and medication interactions. Which of the following actions should the nurse take?

A) Monitor the client's thyroid function levels: This action is not directly relevant to the administration error involving metformin instead of metoprolol. Metformin is not known to affect thyroid function levels. Monitoring thyroid function levels may be appropriate for clients taking certain medications, but it is not indicated in this situation.

B) Check the client's glucose level: Metformin is a medication commonly used to treat type 2 diabetes by lowering blood glucose levels. In this scenario, administering metformin instead of metoprolol could lead to hypoglycemia in the client if they do not have diabetes. Checking the client's glucose level is essential to assess for hypoglycemia and initiate appropriate treatment if necessary.

C) Obtain the client's HDL level: HDL (high-density lipoprotein) level measurement is not directly related to the administration error involving metformin. Metformin is not typically associated with significant effects on HDL levels. Monitoring HDL levels may be relevant for clients with specific cardiovascular risk factors but is not the priority in this situation.

D) Collect the client's uric acid level: Monitoring uric acid levels is not directly relevant to the administration error involving metformin. Metformin is not known to significantly affect uric acid levels. Assessing uric acid levels may be indicated for clients with conditions like gout, but it is not the primary concern in this scenario where the client received the wrong medication.

A) Change the solution every 36 hr: Total parenteral nutrition (TPN) solutions are typically changed every 24 hours to reduce the risk of contamination and infection. Changing the solution every 36 hours does not adhere to the standard practice for TPN administration and may increase the client's risk of complications.

B) Obtain the client's weight three times a week: Monitoring the client's weight is important for assessing nutritional status and adjusting the TPN prescription as needed. However, the frequency of weight measurements may vary depending on the client's condition and the healthcare provider's orders. Three times a week is a common schedule for weight monitoring in clients receiving TPN, but it should be determined based on individual client needs and provider orders.

C) Keep the solution refrigerated until 1 hr before infusion: This is the correct action. TPN solutions are typically stored in the refrigerator to maintain stability and prevent microbial growth. However, they should be removed from the refrigerator and allowed to warm to room temperature for about 1 hour before infusion to prevent discomfort and reduce the risk of metabolic complications when administered to the client.

D) Check the client's WBC count daily: While monitoring the client's white blood cell (WBC) count is important for assessing for infection and other complications, checking it daily may not be necessary for all clients receiving TPN. The frequency of WBC count monitoring should be based on the client's condition, overall clinical status, and healthcare provider's orders.