What is a common lab test recommended at baseline for patients starting amiodarone?

The recommended lab test at baseline for patients starting amiodarone is thyroid function tests. Amiodarone is known to affect thyroid function due to its high iodine content and the way it influences thyroid hormone metabolism. Both hyperthyroidism and hypothyroidism can occur in patients taking amiodarone, so assessing thyroid function before initiating therapy is essential. This ensures that any pre-existing thyroid condition can be identified and monitored appropriately, allowing for safe management of the patient as they begin treatment with this medication.

While complete blood count, liver function tests, and chest x-rays can be important in certain clinical contexts, they do not address the specific risks associated with amiodarone treatment regarding thyroid function, making thyroid function tests particularly critical in this scenario.