|Values are valid only on day of printing.|
Fructose is produced in the male reproductive tract by the seminal vesicles and is released into the semen during ejaculation. Fructose is the energy source for sperm motility.
Fructose testing should be considered for patients with azoospermia and low volume ejaculates to establish the origin of the azoospermia.
A positive (indicated by color change) fructose is considered normal.
A semen specimen that contains no sperm (azoospermia) and is fructose negative may indicate an absence of the seminal vesicles, absence of the vas deferens in the area of the seminal vesicles, or an obstruction at the level of the seminal vesicles.
This test should be performed in conjunction with a semen analysis to determine semen volume, pH, sperm concentration, motility, and grade of forward progression.
Fructose test must be on a separate ejaculate (DO NOT dilute specimen).
Lipshultz LI, Howards SS: Infertility in the Male. Second edition. Edited by DK Marshall. St. Louis, MO, Mosby-Year Book, Inc., 1991, pp 133-135, 194, 209