Test ID: FBEN
Benzene, Occupational Exposure, Blood
Secondary ID 
A test code used for billing and in test definitions created prior to November 2011
90294
NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.
Yes
Method Name A short description of the method used to perform the test
Headspace Gas Chromatography/Flame Ionization
Detection (GC-FID)
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
Benzene, Blood
Aliases Lists additional common names for a test, as an aid in searching
Benzene, Blood FORWARD
Benzol FORWARD
Cyclohexatriene FORWARD
Benzol FORWARD
Cyclohexatriene FORWARD
Specimen Type Describes the specimen type needed for testing
WB Sodium Heparin
Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.
Draw blood in a green-top (sodium heparin) tube(s) and send
20 mL in two tubes of sodium heparin whole blood refrigerated.
Blood should be drawn at end of shift. Tubes should be filled to
prevent loss of volatile compound into headspace.
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
5 mL (in two tubes)
Note: Submission of the minimum volume results in an
elevated reporting limit and inability to repeat analysis.
Note: Submission of the minimum volume results in an
elevated reporting limit and inability to repeat analysis.
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Specimens other than | Whole blood |
| Anticoagulants other than | Sodium heparin |
| Hemolysis | NA |
| Thawing | NA |
| Lipemia | NA |
| Icteric | NA |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.
| Specimen Type | Temperature | Time |
|---|---|---|
| WB Sodium Heparin | Refrigerated (preferred) | |
| Frozen | ||
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.
Reporting Limit: 0.02 mg/L
Normal (unexposed population):
None detected
Exposed (end-of-shift):
Blood benzene concentrations of >0.1 mg/L correlate
with exposure to >10 ppm benzene in air.
Toxic:
Blood benzene concentrations >0.90 mg/L have been
observed in fatal cases of benzene exposure.
Test Performed By: Medtox Laboratories
402 W. County Road D
St. Paul, MN 55112
Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.
Monday through Sunday
Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.
7 days
Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result
9 - 11 days
Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
2 weeks
Performing Laboratory Location The location of the laboratory that performs the test
Medtox Laboratories, Inc
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 Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.
84600
LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the result codes returned for this test or profile.
| Result ID | Reporting Name | LOINC Code |
|---|---|---|
| Z1153 | Benzene | In Process |
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