Test Code GLBF Glucose, Body Fluid
Additional Codes
CNE Order Code: BF Glucose
Reporting Name
Glucose, BFPerforming Laboratory
Mayo Clinic Laboratories in RochesterSpecimen Type
Body FluidOrdering Guidance
For spinal fluid specimens, order GLSF / Glucose, Spinal Fluid. Testing will be changed to GLSF if this test is ordered on that specimen type.
Necessary Information
1. Date and time of collection are required.
2. Specimen source is required.
Specimen Required
Specimen Type: Body fluid
Preferred Source:
-Peritoneal fluid (peritoneal, abdominal, ascites, paracentesis)
-Pleural fluid (pleural, chest, thoracentesis)
-Drain fluid (drainage, JP drain)
-Peritoneal dialysate (dialysis fluid)
-Pericardial
-Amniotic fluid+
-Synovial fluid
- Pancreatic cyst
Acceptable Source: Write in source name with source location (if appropriate)
Collection Container/Tube: Sterile container
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Centrifuge to remove any cellular material and transfer into a plastic vial.
2. Indicate the specimen source and source location on label.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Body Fluid | Refrigerated (preferred) | 7 days | |
Frozen | 30 days | ||
Ambient | 24 hours |
Reference Values
An interpretive report will be provided.
Day(s) Performed
Monday through Sunday
CPT Code Information
82945
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
GLBF | Glucose, BF | 2344-0 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
GL_BF | Glucose, BF | 2344-0 |
FLD12 | Fluid Type, Glucose | 14725-6 |
Report Available
Same day/1 to 3 daysReject Due To
Gross hemolysis | Reject |
Gross Lipemia | Reject |
Gross Icterus | Reject |
Anticoagulant or additive Breast milk Nasal secretions Gastric secretions Bronchoalveolar lavage (BAL) or bronchial washings Colostomy/ostomy Feces Saliva Sputum Cerebrospinal fluid Urine Vitreous fluid |
Reject |
Method Name
Enzymatic Photometric Assay
Useful For
Aiding in the diagnosis of infection using body fluid specimens
Interpretation
Body fluid glucose concentrations may be decreased due to increased cellular metabolism and should be interpreted in the context of blood glucose concentrations and in conjunction with other laboratory and clinical findings.(8, 9)
Pleural, peritoneal, and pericardial fluid and serum glucose concentrations are similar in the absence of infection.(3)
Transudative pleural fluid glucose concentrations are similar to serum glucose concentrations, while exudates have glucose concentrations less than serum glucose. Glucose levels below 60 mg/dL are typically associated with low fluid pH.(1,10)
Amniotic fluid glucose levels below 16 mg/dL is suggestive of infection.(6)
Synovial fluid glucose concentrations are similar to fasting blood glucose concentrations or approximately 50% of the nonfasting serum glucose concentration under normal conditions. Values below this can be seen with infection.(7)
Pancreatic cyst fluid glucose less than50 mg/dL is associated with mucinous cystic lesions.(13-15)