Testosterone, total (Serum (s), frozen)

Testcode:	E_TESTR
Specimens:	500 µl Serum (s), frozen
Preanalytics/Notes:	Standardised blood sampling in the morning between 8.00 and 10.00 am. Blood sampling in women from 2nd to 5th day of the menstrual cycle, if possible.
Method:	ECLIA
Dimension:	ng/ml
Alternate dimension:	nmol/l (Factor: 3.467) Calculator
Set-up:	Mon Tue Wed Thu Fri Sat Sun
Duration:	1 day
Indication/Significance:	Suspected hypogonadism in men Adrenocortical tumours, adrenocortical carcinomas Disturbed pubertal development DD of testicular tumours DD of erectile dysfunction, impotentia coeundi Virilization symptoms, hirsutism, acne, alopecia PCO syndrome
Interpretation:	Increased values in men: more… Increased values in men: Exogenous testosterone administration Endocrine active testicular tumours Androgen receptor deficiencies Androgen-producing adrenocortical carcinoma Increased values in women: Hyperandrogenaemia of adrenal or ovarian origin, e.g. adrenocortical hyperplasia AGS Cushing PCO Ovarian tumours Decreased values in men: Primary hypogonadism, e.g. Klinefelter's syndrome Secondary hypogonadism with decreased gonadotropines Prepubertal, administration of anabolic agents, administration of synthetic androgens, severe malnutrition, anorexia Decreased values in women: Primary and secondary ovarian insufficiency: Postmenopause, prepubertal Ovulation inhibitors, oestrogen medication Liver cirrhosis, drug abuse, severe malnutrition close
Further tests:	Free testosterone, free androgen index (testosterone/SHBG ratio)

male
0 Months	0,75 - 4,00 ng/ml
from 1 Month - 4 Months	< 1,77 ng/ml
from 5 Months - 4 Years	< 0,20 ng/ml
from 5 Years - 9 Years	< 0,24 ng/ml
from 10 Years - 10 Years	< 0,90 ng/ml
from 11 Years - 13 Years	< 4,80 ng/ml
Tanner stage I: < 0.2 ng/ml [< 0,7 nmol/l] II: < 4.3 ng/ml [< 14.9 nmol/l] III: 0.6 - 7.8 ng/ml [2.1 - 27 nmol/l] IV: 1.8 - 7.6 ng/ml [6.2 - 26.5 nmol/l] V: 1.9 - 8.8 ng/ml [6.6 - 30.6 nmol/l]
from 14 Years - 17 Years	1,00 - 8,70 ng/ml
Tanner stage I: < 0.2 ng/ml [< 0,7 nmol/l] II: < 4.3 ng/ml [< 14.9 nmol/l] III: 0.6 - 7.8 ng/ml [2.1 - 27 nmol/l] IV: 1.8 - 7.6 ng/ml [6.2 - 26.5 nmol/l] V: 1.9 - 8.8 ng/ml [6.6 - 30.6 nmol/l]
from 18 Years - 34 Years	2,50 - 8,40 ng/ml
(lower borderline 2.3 - 3.5 ng/ml [8 - 12 nmol/l])
from 35 Years - 49 Years	2,50 - 8,40 ng/ml
(lower borderline 2.3 - 3.5 ng/ml [8 - 12 nmol/l])
from 50 Years - 120 Years	2,30 - 7,40 ng/ml
(lower borderline 2.3 - 3.5 ng/ml [8 - 12 nmol/l])

Representation of age: "from" refers to the commenced year(s) (month) of age; "until" refers to the completed year(s) (month) of age.