Acthpregcplasmcnc

What is this test?

This test measures the amount of corticotropin (also known as ACTH - Adrenocorticotropic Hormone) in your blood plasma. ACTH is a hormone produced by the pituitary gland, a small pea-sized gland at the base of your brain. The primary function of ACTH is to stimulate your adrenal glands (located on top of your kidneys) to release cortisol, which helps your body respond to stress, maintain blood pressure, and regulate metabolism.

Why is it done before glucagon stimulation?

The glucagon stimulation test is a procedure used to evaluate how well your pituitary and adrenal glands work together. Glucagon is a hormone that normally raises blood sugar levels, but it also stimulates the pituitary gland to release ACTH. By measuring your baseline ACTH level (before receiving glucagon) and comparing it to levels after glucagon is given, doctors can determine if your hormonal response is normal. This helps identify problems with your pituitary-adrenal axis.

How is the test performed?

A healthcare professional will draw a blood sample from a vein in your arm, usually in the morning when ACTH levels are naturally highest. This sample is collected before you receive the glucagon injection. The blood will be sent to a laboratory for analysis to measure your baseline ACTH concentration.

Do I need to prepare for the test?

Your doctor may ask you to fast (not eat or drink anything except water) for a certain period before the test. Certain medications, especially steroids or hormonal treatments, may need to be stopped before testing. Inform your doctor about all medications and supplements you are taking. Stress, recent illness, and physical activity can affect ACTH levels, so try to rest before the test.