What tests should a nurse verify are completed before administering lithium?

Before administering lithium, it is essential for a nurse to verify that several tests have been completed, as lithium can impact various bodily functions and requires monitoring of specific parameters to ensure patient safety.

The blood urea nitrogen (BUN) test is critical because lithium can affect kidney function. Elevated BUN levels may indicate impaired renal function, which is important to assess before starting treatment, as lithium is primarily excreted through the kidneys.

The thyroid stimulating hormone (TSH) test is also important, as lithium has been associated with thyroid dysfunction, particularly hypothyroidism. Monitoring TSH levels helps ensure that the patient's thyroid function is stable before beginning therapy with lithium, allowing the nurse to manage potential thyroid-related side effects.

An electrocardiogram (ECG) is recommended because lithium can influence cardiac function, especially in patients with preexisting conditions. The ECG can provide insights into any underlying cardiac issues that may be exacerbated by lithium treatment.

Thus, verifying that all these tests—BUN, TSH, and ECG—are completed before starting lithium therapy is crucial for delivering safe and effective care. This comprehensive approach ensures that any potential risks are identified and managed proactively.