FAI (Free Androgen Index) (Serum (s))

Specimens:	1 ml Serum (s)
includes following tests:	Testosterone, total (Serum (s), frozen) Sex hormone binding globulin (SHBG) (Serum (s))
Preanalytics/Notes:	Patients receiving high doses of biotin (> 5 mg / day) should be sampled at least 8 hours after the last application, as high levels of biotin may interfere with the test system.
Method:	ECLIA
Set-up:	on demand
Duration:	1 day
Indication/Significance:	Men: Suspected hypogonadism, cryptorchism, erectile dysfunction, testicular tumours, therapy monitoring Women: Suspected ovarian tumours, virilization
Interpretation:	The free androgen index more… The free androgen index comprises the determination of testosterone and SHBG and is thus a reliable measure for the biologically active free testosterone. The determination of this index is recommended in situations where influence factors interfere with the determination of total testosterone (disturbed protein binding, hyperthyreosis, administration of anti-epileptic agents). close

male
from 0 - 6 Years
No reference range known for this age
from 7 Years - 7 Years	< 0,2
from 8 Years - 8 Years	< 0,4
from 9 Years - 9 Years	< 0,4
from 10 Years - 10 Years	< 3,3
from 11 Years - 11 Years	< 11,0
from 12 Years - 12 Years	0,1 - 25,0
from 13 Years - 13 Years	0,2 - 46,0
from 14 Years - 14 Years	11,0 - 82,0
from 15 Years - 15 Years	11,0 - 83,0
from 16 Years - 16 Years	36,0 - 82,0
from 17 Years - 19 Years	50,0 - 112,0
from 20 Years - 49 Years	35,0 - 93,0
from 50 Years - 120 Years	24,0 - 72,0

female
from 0 - 6 Years
No reference range known for this age
from 7 Years - 7 Years	< 0,3
from 8 Years - 8 Years	< 0,5
from 9 Years - 9 Years	< 1,0
from 10 Years - 10 Years	< 2,3
from 11 Years - 11 Years	< 2,9
from 12 Years - 12 Years	< 3,8
from 13 Years - 13 Years	< 5,8
from 14 Years - 14 Years	< 5,0
from 15 Years - 15 Years	< 5,2
from 16 Years - 16 Years	< 7,5
from 17 Years - 19 Years	< 7,5
from 20 Years - 49 Years	< 5,6
from 50 Years - 120 Years	< 3,6

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