Fructose, Qualitative, Semen
Use
This test is used for establishing the origin of azoospermia in patients with azoospermia and low volume ejaculates. It measures the presence of fructose in semen, which is produced in the male reproductive tract by the seminal vesicles and serves as an energy source for sperm motility. Identifying the presence or absence of fructose can indicate if there is 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.
Special Instructions
This test should be performed in conjunction with a semen analysis to determine semen volume, pH, sperm concentration, motility, and grade of forward progression. Ensure that the fructose test is conducted on a separate ejaculate.
Limitations
A positive result indicated by a color change is considered normal. A semen specimen that contains no sperm (azoospermia) and is fructose negative may suggest conditions such as absence of the seminal vesicles or an obstruction at the level of the seminal vesicles. This test has not been cleared or approved by the US Food and Drug Administration.
Methodology
Other
Biomarkers
LOINC Codes
- 13943-6
- 13943-6
- 56816-2
- 3160-9
- 48767-8
Result Turnaround Time
1-7 days
Related Documents
For more information, please review the documents below
Specimen
Semen
Volume
Total ejaculate
Minimum Volume
0.5 mL
Container
Sterile container
Collection Instructions
Patient should have 2 to 7 days of sexual abstinence at the time of semen collection. Do not dilute specimen. Freeze specimen at -20 degrees C.
Patient Preparation
Patient should have 2 to 7 days of sexual abstinence.
Causes for Rejection
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.