Alan C. Dalkin MD


Radioactive Iodine Uptake Test

A radioactive iodine uptake (RAIU) test uses a radioactive tracer and a special probe to measure how much tracer the thyroid gland absorbs from the blood. The test can show how much tracer is absorbed by the thyroid gland. The RAIU test often is done along with a thyroid scan, which shows if the tracer is evenly spread…

C-Peptide

Discusses C-peptide test, used to tell the difference between type 1 or type 2 diabetes, find the cause of hypoglycemia, or check whether a pancreas tumor (insulinoma) was completely removed. Discusses how the test is done and how to prepare for it.

Pituitary gland

The pituitary gland is a small organ located beneath the brain. The pituitary gland produces substances called hormones. These hormones enter the bloodstream and help control many processes of the body.

Acromegaly

Acromegaly is a hormonal disorder in which the pituitary gland produces too much growth hormone. This disorder causes abnormal enlargement of bones and tissues, noticeably in the hands and feet, which occurs gradually over several years. Enlarged bones in the nose and mouth may cause a large tongue and widely spaced…

ACTH

ACTH (adrenocorticotropic hormone) is a hormone produced by the pituitary gland, located below the brain. ACTH activates glands on the kidneys (adrenal glands) to make cortisol, a substance that helps the body deal with stress. When cortisol levels in the blood rise, the ACTH levels in a healthy person normally fall in…