[Circadian rhythm of plasma testosterone levels. III. Determination of the daily serum testosterone maximum].
Testosterone levels in plasma in 50 young males are found on a plateau between 07,00 h and 10,00 h. As this plateau represents the highest level throughout the day, it is necessary to take blood sample only once during this period. Therefore a statement about endocrine testicle function can be given by only one determination of testosterone between 07,00 h and 10,00 h. This faciliates endocrine examination in ambulant patients.
D000293:Adolescent; D000328:Adult; D002940:Circadian Rhythm; D006801:Humans; D008297:Male; D013739:Testosterone / Q000096:biosynthesis / Q000097:blood*
D013739:Testosterone
Circadiane Rhythmik des Plasmatestosteronspiegels. III. Bestimmung des Tagesmaximums von Testosteron im Serum.