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Test Name:
Glucose, Body Fluid
- SBMF No:
29107 - Performance Lab Name:
Automated Lab - Test Mnemonic:
BF GLU - ABN:
Not required - CPT Code:
82945 - LOINC Code:
2344-0 - Also Known As:
Body Fluid Glucose - Spec Type:
Body fluid - Spec Container:
Red top (serum) tube - Pref Vol:
1.0 mL - Min Vol:
0.3 mL - Fasting:
No - Spec Collect:
Collected by physician or nursing personnel
Document source of fluid on label and requisition - Spec Process:
If fluid is bloody, centrifuge 15 minutes
Immediately transfer supernatant to separate plastic tube - Spec Store Transport:
Refrigerated - Spec Stability:
1 week refrigerated (2-8°C) - Spec Reject:
Extreme viscosity - Methodology:
Photometric - Use:
Evaluate inflammatory, septic, or malignant effusion
In pleural effusion, low glucose is a facet of rheumatoid effusion - Clinical Significance:
Decreased fluid glucose concentration is usually associated with septic or inflammatory processes; in pleural effusion, very low glucose is a facet of rheumatoid effusion: pleural fluid glucose less than 50 mg/dL characterizes rheumatoid effusion. It is often much less. Loculated effusions or empyemas with low glucose and low pH It have been reported. Low glucose is found with empyema, tuberculosis, neoplasia, and rheumatoid effusion. In cases of malignant pleural effusions, when there is low pleural fluid glucose (less than 60 mg/dL) and pH less than 7.30, it was reported that there was a 90% probability that the cytologic yield will be positive.Serous fluids for laboratory examination are collected by needle aspiration from body cavities. These aspiration procedures could include thoracentesis (pleural), pericardiacentesis (pericardial), synovial (joint) fluid and paracentesis (peritoneal). Many pathologic conditions can cause a buildup (effusion) of serous fluids. Effusion of serous fluid can be placed into two general categories: transudates and exudates. A transudate disrupts the balance in the regulation of fluid filtration and reabsorption. An example is the changes in hydrostatic pressure created by congestive heart failure. Exudates are produced by conditions that directly involve the membranes of the particular cavity including infections and malignancies. Analysis of body fluid usually includes one or more of the following: cell count, differential, total protein, crystals, pH, specific gravity, glucose, albumin, amylase, sodium, potassium, chloride, LD, creatinine, urea nitrogen, uric acid, routine culture, and cytologic studies. Additional testing may include specialized microbiology cultures for AFB or fungus or testing for the presence of bilirubin. Only those tests that are ordered will be performed. - Reference Range:
Reference ranges not available for body fluid specimens
Physician must interpret results based upon origin of fluid and patient's clinical condition - Day Run:
Sun-Sat (daily) - Time Run:
As received - Time Reported:
4 hours - Test Type:
BODY FLUID
