Dihydrotestosterone (s) (Serum (s))

Specimens:	1 ml Serum (s)
Preanalytics/Notes:	In contrast to testosterone, DHT shows no circadian rhythm.
Method:	Liquid chromatography-tandem mass spectr
Dimension:	ng/dl
Set-up:	on demand
Duration:	7 days
Indication/Significance:	Suspected hypogonadism in men Substitution monitoring Suspected testicular tumours Diagnostic assessment of virilization in women Disorders of the steroid hormone metabolism (5-alpha reductase deficiency): The 5-alpha reductase converts the testosterone into the actually effective dihydrotestosterone at the target cells.
Interpretation:	Increased: In men: more… Increased: In men: Exogenous testosterone administration Endocrine active testicular tumours In women: Hyperandrogenaemia Decreased: Primary and secondary hypogonadism Liver cirrhosis Disturbed conversion of testosterone into dihydrotestosterone in the case of a 5-alpha reductase deficiency close
Further tests:	Total testosterone, SHBG

sample referred to a partner lab

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