Glucose, Whole Blood
Blood Sugar
Test Codes
EPIC: LAB5345, GLUW
Department
Chemistry
Instructions
- Glucose, Whole Blood should ONLY be collected at the Dearborn, Farmington Hills, Grosse Pointe, Royal Oak, Taylor, Trenton, Troy or Wayne Hospital Campuses. Specimens should not be collected at any other Beaumont Laboratory drawsite, nursing home, or Outreach office.
- This test can be performed as either a fasting or random blood sugar.
Specimen Collection Criteria
FOR EC AND INPATIENT SAMPLE COLLECTION ONLY:
Preferred Sample: One Light Green (Mint) Top Plasma Separator Tube (PST). (Minimum Whole Blood: 4.0 mL)
Acceptable Sample: One Gold Top SST (Minimum Whole Blood: 4.0 mL)
Do NOT use Dark Green-top Lithium or Sodium Heparin tubes.
See Minimum Pediatric Specimen Requirements.
*Venous or arterial blood is required for adults. If heel-stick is necessary in neonates or fingerstick in pediatrics, minimize exposure of the sample to air during collection.
**NOTE: Blood Gas specimens should ONLY be collected at the Dearborn, Farmington Hills, Grosse Pointe, Royal Oak, Taylor, Trenton, Troy, or Wayne Hospital Campuses. Specimens should NOT be collected at any other Beaumont Laboratory draw-site, Nursing Home, or Outreach office.
Blood Gas Procedure:
- A 1 mL or 3 mL plastic syringe containing dry heparin is usually used to collect the specimen.
- At least 1-2 mL (0.3 mL for pediatric patients) of blood is needed to ensure proper assay.
- Arterial specimens are collected by a physician, nurse, or respiratory therapist.
- For specimens collected by syringe, any air bubbles present in the syringe must be immediately expelled, the needle removed, and the syringe tightly capped. The syringe is rolled between the palms of the hands to ensure mixing.
o NOTE: The Radiometer safePICO self-fillTM syringe has a metal ball to ensure homogeneous mixing when the syringe is rolled between the palms of the hands.
- Characterization of oxygen enrichment, at the time of arterial puncture, is required. This may be expressed as FiO2 fractional inspired oxygen concentration provided (e.g. 0.50), FiO2% (e.g. 50%), room air, or nasal cannula flow rate in liters per minute. The FiO2 must be noted on the requisition or entered as part of the electronic order for any arterial blood gas specimens.
- The specimen must be properly labeled.
- Place on wet ice for transport. Ice and Specimen must be kept separated.
o Suggested: Place specimen in front pocket of the biohazard bag. Place ice in zip lock section of biohazard bag.
- The specimen must be transported immediately to the STAT Laboratory (Royal Oak) or to the Chemistry Laboratories.
Rejection Criteria
Specimen in which significant delays occur before arrival in the Laboratory (greater than 2 hours).
Inpatient Specimen Preparation
Transport the specimen STAT to the STAT Laboratory (Royal Oak) or Chemistry Laboratories.
In-Lab Processing
Immediately analyze the whole blood specimen upon receipt in the Laboratory.
Storage
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 2 hours
Refrigerated (2-8°C or 36-46°F): Unacceptable
Frozen (-20°C/-4°F or below): Unacceptable
Specimen Storage in Department Prior to Disposal:
Specimens are disposed within 8 hours of testing.
Laboratory
Dearborn Chemistry Laboratory
Farmington Hills Chemistry Laboratory
Grosse Pointe Chemistry Laboratory
Livonia Main Laboratory
Lenox Main Laboratory
Royal Oak Automated Chemistry Laboratory
Troy Chemistry Laboratory
Taylor Chemistry Laboratory
Trenton Chemistry Laboratory
Wayne Chemistry Laboratory
Performed
Sunday – Saturday, 24 hours a day.
Results available within 30 minutes of receipt in the Laboratory.
Reference Range
Fasting: 60-99 mg/dL.
Random: 60-139 mg/dL.
Test Methodology
Enzymatic amperometry.
Interpretation
See Glucose assay.
Clinical Utility
- This assay is appropriate when rapid turn around time is important for patient management.
- If serum or heparinized plasma is left in contact with blood cells for extended periods, glucose will be metabolized. Glucose levels decrease by about 5-7 mg/dl per hour at room temperature in normal specimens containing normal numbers of RBC's and WBC's.
CPT Codes
82947
LOINC: 5792-7
Contacts
Main Laboratory – LNX
947-523-4070
Name: Main Laboratory – LNX
Location:
Phone: 947-523-4070
Main Laboratory – LVA
947-523-4370
Name: Main Laboratory – LVA
Location:
Phone: 947-523-4370
Chemistry Laboratory – FH
947-521-5252
Name: Chemistry Laboratory – FH
Location:
Phone: 947-521-5252
Chemistry Laboratory – TRN
734-671-3165
Name: Chemistry Laboratory – TRN
Location:
Phone: 734-671-3165
Chemistry Laboratory – DBN
313-596-2196
Name: Chemistry Laboratory – DBN
Location:
Phone: 313-596-2196
Chemistry Laboratory – TYL
313-295-5360
Name: Chemistry Laboratory – TYL
Location:
Phone: 313-295-5360
Main Laboratory –WYN
734-467-4274
Name: Main Laboratory –WYN
Location:
Phone: 734-467-4274
Chemistry Laboratory – GP
313-473-1807
Name: Chemistry Laboratory – GP
Location:
Phone: 313-473-1807
STAT Laboratory – RO
248-898-0325
Name: STAT Laboratory – RO
Location:
Phone: 248-898-0325
Chemistry Laboratory – TR
248-964-8070
Name: Chemistry Laboratory – TR
Location:
Phone: 248-964-8070
Last Updated
5/18/2022
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