Saline infusion test

A saline infusion test is a medical procedure used to evaluate how well your adrenal glands are producing aldosterone, a hormone that helps control blood pressure and salt levels. During the test, a saline solution (saltwater) is slowly infused into your bloodstream through a vein. The healthcare provider then measures your hormone levels before and after the infusion. This helps determine if your adrenal glands are functioning properly or if there's an abnormality, such as primary aldosteronism, which can cause high blood pressure. The test provides valuable information to guide diagnosis and treatment decisions.