Endocrinology is the study of medicine that relates to the endocrine system, which is the system that controls hormones. An endocrinologist will deal with diseases that are caused by problems with hormones.
17-OH ProgesteroneOptimal range: 35 - 290 ng/dL
17-OHP is produced by the adrenal gland as part of the process of making the important hormone cortisol. The adrenal glands are two small glands. One is located on top of each kidney. Along with special enzymes, or proteins, 17-OH progesterone is converted to a hormone called cortisol.LEARN MORE
ACTH, PlasmaOptimal range: 7.2 - 63.3 pg/mL
ACTH, a pituitary hormone, stimulates cortisol production from the adrenal glands. If ACTH levels are too low or too high, it can indicate that the pituitary or the adrenal glands are diseased.LEARN MORE
ADHOptimal range: 0 - 4.7 pg/mL
ADH stands for antidiuretic hormone also known as vasopressin. ADH primarily acts in the kidney to resorb water. Vasopressin can also be administered to raise blood pressure.LEARN MORE
Aldos/Renin RatioOptimal range: 0 - 30 ng/dL per ng/mL/hr
The aldosterone to renin ratio blood test measures the amount of aldosterone divided by the amount of renin in the blood plasma. The test determines whether or not primary hyperaldosteronism is present and causing high blood pressure.LEARN MORE
AldosteroneOptimal range: 0 - 30 ng/dL
Aldosterone is a mineralcoritcoid and a hormone. It allows the transport of sodium across the cell membrane. Aldosterone is important in blood pressure regulation and also for the volume of blood found in the blood vessels.LEARN MORE
Anti-Mullerian Hormone (AMH)Optimal range: 5.5 - 37.4 pmol/L
Anti-Mullerian Hormone (AMH) is a protein hormone produced by cells within the ovary. Understanding your AMH level can help to assess your ovarian egg reserve and therefore your fertility.LEARN MORE
Cortisol - AM (Serum)Optimal range: 6.2 - 19.4 ug/dL
Cortisol is a stress hormone produced by the adrenal glands and is the primary agent used in our body’s flight or fight response to threatening stimuli.LEARN MORE
Cortisol, SerumOptimal range: 2.3 - 19.4 µg/dL
Cortisol is a stress hormone produced by the adrenal glands and is the primary agent used in our body’s flight or fight response to threatening stimuli. Levels naturally peak in the morning and then reach their lowest point at night. A high blood cortisol level at night may indicate a problem with the adrenal glands; however, individuals who work at night and sleep during the day will have an inversed pattern.LEARN MORE
Cortisol-Binding Globulin (CBG)Optimal range: 19 - 45 mg/L
Cortisol-binding globulin (CBG) is a serum alpha-2-globulin-binding protein with high affinity and limited capacity for cortisol. It binds most (±92%) of the serum cortisol; the remaining cortisol (±8%) circulates in a free form or bound to albumin.LEARN MORE
DHEAS (Serum)Optimal range: 9.58 - 405.306 mcg/dL
It stands for Dehydroepiandrosterone and is a building block of steroid hormones that is produced predominantly in the adrenal glands.LEARN MORE
EstradiolOptimal range: 45.4 - 1461 pmol/L
Estradiol (Estrogen) is a female hormone, produced primarily in the ovary. The amount of estrogen produced depends on the phase of the menstrual cycle.
Men also produce estradiol, but only very small amounts.
Shortly before ovulation, estradiol levels surge and then fall immediately after ovulation. They then rise again and remain elevated until 2-3 days before menstruation.LEARN MORE
Estradiol (male)Optimal range: 7.6 - 42.6 pg/mL
Estradiol is the main "female" hormone. The full name is 17-beta-Estradiol.
Current research indicates that, in some people, this hormone may play a role in the loss of bone density, prevents male bodies from clearing DHT out of the prostate gland, and can stimulate estrogen-sensitive tumor growth (if estrogen-sensitive cancer cells are already present).
Men need to produce estrogen through a process involving an enzyme called aromatase that transforms testosterone into estradiol.
Aging men sometimes have too much aromatase activity, which causes their testosterone to convert to excess estradiol. This results in depletion of vital testosterone while spiking estradiol to unsafe ranges.LEARN MORE
Estrogens, Total (female)Optimal range: 50 - 170 pg/mL
Total estrogen is a reliable test for estrogen status and is used to detect hormone imbalances.
Estrogen is known as the “female” hormone. The four major naturally occurring estrogens in women are estrone (E1), estradiol (E2), estriol (E3), and estetrol (E4).LEARN MORE
Estrogens, Total (male)Optimal range: 60 - 190 pg/mL
Estrogen is known as the “female” hormone. The four major naturally occurring estrogens in women are estrone (E1), estradiol (E2), estriol (E3), and estetrol (E4).
Although estrogen is identified with a females, it is also found in men.LEARN MORE
Progesterone (male)Optimal range: 0.27 - 0.9 ng/mL
Progesterone is present in men but at a much lower level than found in premenopausal women. Progesterone is not only a female hormone. Although in females it is responsible for protecting the unborn child from rejection during pregnancy, progesterone performs various other functions in both men and women. Progesterone is the precursor to other hormones, including testosterone, the sex hormone that emphasizes male characteristics.LEARN MORE
Progesterone (Serum)Optimal range: 0.3 - 50.6 nmol/L
Progesterone plays an important role in preparing the uterus for pregnancy. Levels of progesterone rise with pregnancy, and rise even higher if there are twins. Imbalances of progesterone are linked with health challenges in both men and women.LEARN MORE