Test Id : FROS2
Fructose, Qualitative, Semen
Useful For
Suggests clinical disorders or settings where the test may be helpful
Establishing the origin of azoospermia in patients with azoospermia and low volume ejaculates
Method Name
A short description of the method used to perform the test
Qualitative
NY State Available
Indicates the status of NY State approval and if the test is orderable for NY State clients.
Reporting Name
Lists a shorter or abbreviated version of the Published Name for a test
Aliases
Lists additional common names for a test, as an aid in searching
Fructose
Specimen Type
Describes the specimen type validated for testing
Semen
Specimen Required
Defines the optimal specimen required to perform the test and the preferred volume to complete testing
Patient Preparation: Patient should have 2 to 7 days of sexual abstinence at the time of semen collection.
Submit only 1 of the following specimens:
Specimen Type: Semen
Collection Container/Tube: Sterile container
Submission Container/Tube: Plastic container
Specimen Volume: Total ejaculate
Collection Instructions: Do not dilute specimen. Freeze specimen at -20 degrees C.
Specimen Type: Seminal plasma
Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. After semen collection, wait 30 to 40 minutes until the semen is liquefied, then centrifuge the semen for 10 minutes at maximum centrifuge speed.
2. Remove top 3/4 of specimen with a pipet and place in a plastic vial. Freeze specimen at -20 degrees C.
3. Discard remainder of centrifuged specimen.
Specimen Minimum Volume
Defines the amount of sample necessary to provide a clinically relevant result as determined by the testing laboratory. The minimum volume is sufficient for one attempt at testing.
0.5 mL
Reject Due To
Identifies specimen types and conditions that may cause the specimen to be rejected
Specimen Stability Information
Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Semen | Frozen | ||
Useful For
Suggests clinical disorders or settings where the test may be helpful
Establishing the origin of azoospermia in patients with azoospermia and low volume ejaculates
Clinical Information
Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test
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.
Reference Values
Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
Positive
Interpretation
Provides information to assist in interpretation of the test results
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.
Cautions
Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances
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.
Clinical Reference
Recommendations for in-depth reading of a clinical nature
1. Lipshultz LI, Howards SS, Niederberger CS, eds: In: Infertility in the Male. 4th ed. Cambridge University Press 2009
2. Risz B, Agarwal A, Sabanegh ES, eds: Male Infertility in Reproductive Medicine: Diagnosis and Management. CRC Press; 2019
Method Description
Describes how the test is performed and provides a method-specific reference
A qualitative method using resorcinol will detect the presence or absence of fructose.(Keel BA, Webster BW: Handbook of the Laboratory Diagnosis and Treatment of Infertility. CRC Press: 1990:49)
PDF Report
Indicates whether the report includes an additional document with charts, images or other enriched information
Day(s) Performed
Outlines the days the test is performed. This field reflects the day that the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time before the test is performed. Some tests are listed as continuously performed, which means that assays are performed multiple times during the day.
Friday
Report Available
The interval of time (receipt of sample at Mayo Clinic Laboratories to results available) taking into account standard setup days and weekends. The first day is the time that it typically takes for a result to be available. The last day is the time it might take, accounting for any necessary repeated testing.
Specimen Retention Time
Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
Performing Laboratory Location
Indicates the location of the laboratory that performs the test
Fees :
Several factors determine the fee charged to perform a test. Contact your U.S. or International Regional Manager for information about establishing a fee schedule or to learn more about resources to optimize test selection.
- Authorized users can sign in to Test Prices for detailed fee information.
- Clients without access to Test Prices can contact Customer Service 24 hours a day, seven days a week.
- Prospective clients should contact their account representative. For assistance, contact Customer Service.
Test Classification
Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR) product.
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.
CPT Code Information
Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Clinic Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.
CPT codes are provided by the performing laboratory.
CPT codes are provided by the performing laboratory.
82757
LOINC® Information
Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the order and results codes of this test. LOINC values are provided by the performing laboratory.
| Test Id | Test Order Name | Order LOINC Value |
|---|---|---|
| FROS2 | Qualitative Fructose,Semen | 13943-6 |
| Result Id | Test Result Name |
Result LOINC Value
Applies only to results expressed in units of measure originally reported by the performing laboratory. These values do not apply to results that are converted to other units of measure.
|
|---|---|---|
| FRUCS | Fructose, Semen/Seminal P | 13943-6 |
| CLSM | Collection Site | 56816-2 |
| VOLSM | Semen Volume | 3160-9 |
| CMT49 | Comment | 48767-8 |