Home
June 2008 July 2008 August 2008
Su Mo Tu We Th Fr Sa
Week 27 1 2 3 4 5
Week 28 6 7 8 9 10 11 12
Week 29 13 14 15 16 17 18 19
Week 30 20 21 22 23 24 25 26
Week 31 27 28 29 30 31

It Doesn't Appear to be Necessary to Obtain Serum Testosterone Samples in the Morning Show Comments PDF Print E-mail
  
Friday, 14 April 2006

BERKELEY, CA (UroToday.com) - Previous reports suggest a diurnal variation in serum testosterone (T) and recommended checking T levels in the early morning.

In a large Multi-Institutional study of 3006 men screened during Prostate Cancer Awareness Week, serum T levels were obtained randomly throughout the day. Four time periods (6am-10am; 10am-12pm; 12pm-2pm; and 2pm-6pm) were evaluated.

Lead author, Dr. Abe Morgantaler, Beth Israel Deaconess Medical Center, Boston, MA, reported at the Sexual Medicine Society of North America Annual Research Meeting that up to 2pm, serum T levels were remarkably stable. After 2pm, T levels dropped 13%. Further, the percentage of men with low T did not change, even in the 2-6pm group.

Dr. Morgantaler concluded "current restrictive recommendations regarding time of day for T testing may be safely liberalized, especially since hypogonadal men appear to demonstrate even less diurnal variation."

Written by Gregory A. Broderick, MD, a Contributing Editor with UroToday.

Reader Comments

Please log-in or register in order to submit comments.

Powered by AkoComment!

 
User Rating: / 0
PoorBest


 
< Prev   Next >