A healthy result should fall into the range 25 - 115 ng/mg.
Testosterone is an androgen (male sex hormone) found in both men and women but in significantly larger quantities in men due to the testes. A small amount is made by our pituitary glands, and in women, by the ovaries. In pubescent boys, testosterone causes the voice to deepen, muscles to get bigger, sperm production to begin, and facial/ body hair to grow. Most of the testosterone in the blood is bound to a protein called sex hormone binding globulin, and a small amount floats freely. Typically, testosterone tests either assess the bound testosterone or the free testosterone. A total testosterone test measures both.
These tests may be used to help evaluate conditions such as:
-Decreased sex drive
-Erectile dysfunction in men
-Infertility in men and women
-Delayed or accelerated puberty in boys
-Male features (deep voice, excessive hairiness) in women
insert the value from you Testosterone (DUTCH) (male) test result.
The testes make most of the male's testosterone. Levels tend to be their highest at around 20 years of age and start to decline when men get into their 30's. Levels continue to drop as men age. Consider the appropriate age-dependent range. In older men, you can also consider the 18-25 year-old group to approximate what levels may have been when the patient was young and relatively healthy.
A low testosterone level in men may be due to:
-Hypothalamic or pituitary disease
-A genetic condition causing decreased testosterone production in young men
-Testicular failure / infertility, which can be genetic (myotonic dystrophy) or due to impairment (alcoholism, physical injury, or the mumps)
-A chronic disease like diabetes
A high testosterone level in men may indicate:
-Adrenal tumors producing testosterone
-Use of anabolic steroids
-Congenital adrenal hyperplasia affecting the adrenal glands
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