Types

• Testosterone, a C 18 steroid, is the most potent naturally secreted androgen. In normal post pubertal males, testosterone is secreted primarily by the testes with only a small amount derived from peripheral conversion of 4- or 5-androstene-3beta, 17betadione (ASD).
• In adult women, it has been estimated that more than 50 % of serum t...

Description

Adult Male :

• 8.69 - 54.69 pg/ml

Adult Female :

• 0.29 – 3.18 pg/ml
• Follicular Phase : 0.45 - 3.17 pg/ml
• Luteal Phase : 0.46 - 2.48 pg/ml
• Post menopausal : 0.29 - 1.73 pg/ml

When to get Tested

• In men, the test is done when infertility is suspected or when man has decreased sex drive or erectile dysfunction
• When a young boy seems to be undergoing precocious puberty
• In Woman when there is irregular periods or Amenorrhoea, infertility and masculine features 

Elevated Level

Males:

• Congenital adrenal hyperplasia
• Adrenal virilizing tumour causing premature puberty in boys
• Testosterone peripheral resistant cases

Females:

• Ovarian stromal hyperthecosis
• Adrenal hyperplasia
• Polycystic ovarian syndrome
• Adrenal virilizing tumour causing masculinization in women

Decreased Level

• Primary hypogonadism (eg. Orchiectomy)
• Secondary hypogonadism (eg. Hypopituitarism)
• Testicular feminization
• KIeinfelter's syndrome