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Test Code C07R Basic Metabolic Panel with Reflex to Hemoglobin A1c

Important Note

This Basic Metabolic Panel automatically reflexes to a Hemoglobin A1c when the glucose result is greater than or equal to 100 mg/dL.

This test is available at UCL only.

Additional Codes

MLAB: C07R

PowerChart: Not applicable

Epic: Not applicable

Test Method

UCL: DXC Beckman

  • BUN:Enzymatic-Conductivity Rate
  • Glucose: Timed Endpoint; Beckman
  • Creatinine: Jaffe Rate
  • Sodium: Ion Exchange
  • Potassium: Ion Specific Electrode
  • Chloride: Ag/AgCl Electrode
  • CO2: Rate of pH Change, CO2 Electrodes
  • Calcium: Ion Specific Electrode

Specimen Requirement

Basic Metabolic Panel:

0.5 mL serum or plasma is required.

 

Hemoglobin A1c:

3 mL whole blood is required.

Additional Specimen Collection Information

Basic Metabolic Panel:

Collect blood in a lithium heparin, green-top or red-top tube from a fasting patient. (12 hour fast is recommended.) PST and SST (gel tubes) are acceptable. Serum or plasma should be separated from contact with the cells within 2 hours of collection. Specimens not centrifuged within 4 hours of collection may be rejected. Refrigerate the specimen if unable to assay within 8 hours of collection. Hemolyzed specimens are not acceptable. Samples with >3+ lipemia must be cleared prior to analysis. Protect from light.

 

Hemoglobin A1c:

Collect blood in an EDTA; purple-top whole blood is preferred. Lithium heparin green-top whole blood is also acceptable.

Performance

Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after the specimen arrives at the testing site.

Expedite orders: Typically completed within 1 hour after the specimen arrives at the testing site.

STAT orders: Typically completed within 30 minutes after the specimen arrives at the testing site.

Reference Values

BUN: 10 - 26 mg/dL

Glucose:  70 - 99 mg/dL

  • Critical values:

    • Low: < 50 mg/dL
    • High: > 450 mg/dL

    Diagnostic thresholds for diabetes and lesser degrees of impaired glucose regulation

     

    Test

    Category

    FPG

    2-Hr PG

    Normal

    <100 mg/dL (<5.6 mmol/L)

    <140 mg/dL (<7.8 mmol/L)

    IFG

    100-125 mg/dL (5.6-6.9 mmol/L)

    _

    IGT

    _

    140-199 mg/dL (7.8-11.0 mmol/L)

    Diabetes*

    ≥ 126 mg/dL (≥ 7.0 mmol/L)

    ≥ 200 mg/dL (≥ 11.1 mmol/L)

     

    When both tests are performed, IFG or IGT should be diagnosed only if diabetes is not diagnosed by the other test. *a diagnosis of diabetes needs to be confirmed on a separate day.
    Ref.: diabetes care, v.26, #11 – nov. 2003

Creatinine: 0.4 - 1.4 mg/dL

GFR (calculated): ≥ 60 mL/min/1.73m2

Sodium: 135 - 145 meq/L

  • Critical values:
    •  low:  < 120 meq/L
    •  high: > 160 meq/L

Potassium: 3.5 - 5.0 meq/L

  • Critical values:
    •  low: < 3.0 meq/L
    •  high:  > 6.0 meq/L

Chloride: 100 - 108 meq/L

CO2: 24 - 32 meq/L

  • Critical values:
    • Low: < 10.0 meq/L
    • High: > 40.0 meq/L

Anion gap: (calculated value:  7-16 meq/L)

Calcium: 8.5-10.5 mg/dL

  • Critical values:
    • Low:  < 6.0 mg/dL
    • High: > 13.0 mg/dL

CPT Code Information

80048 Multi-test Laboratory Panels; Basic metabolic panel (Calcium, total)

Useful For

See individual constituents.

LOINC Code Information

24321-2 Basic Metabolic 2000 Panel-Serum or Plasma

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