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Test Code RENALF Renal Function Panel, Fasting LAB0019

Test Method

Beckman DXC600

  • Albumin: Bromcresol Purple Timed Endpoint
  • BUN:Enzymatic-Conductivity Rate
  • Calcium: Ion Specific Electrode
  • Creatinine: Jaffe Rate
  • Glucose: Timed Endpoint
  • Sodium: Ion Exchange
  • Potassium: Ion Specific Electrode
  • Chloride: Ag/AgCl Electrode
  • CO2: Rate of pH Change, CO2 Electrodes
  • Phosphorus: Sample Blanked Phosphomolybdate Endpoint

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.

Useful For

See individual constituents.

Specimen Requirement

0.5 mL serum or plasma is required.

CPT Code Information

80067 Multi-test Laboratory Panels; Renal function
panel

Reference Values

Albumin: 3.5-5.2 gm/dL
 

BUN: 10 – 26 mg/dL
 

Calcium: 8.5-10.5 mg/dL

  • Critical values:

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

Glucose:  70 – 99 mg/dL

  • Critical values:

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

Creatinine: 0.4 – 1.4 mg/dL

eGFR (calculated): ≥ 60
mL/min/1.73m2
eGFR-AA (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: 22 – 32 meq/L

  • Critical values:

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

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

Phosphorus: 2.0-4.5 mg/dL

LOINC Code Information

24362-6 Renal Function 2000 Panel-Serum Or Plasma

Additional Specimen Collection Information

Collect blood in a lithium heparin, green-top or red-top
tube from a fasting patient. (A 12 hour fast is
recommended.) PST and SST (gel tubes) are acceptable. Serum or
plasma should be separated from contact with cell within 2 hours of
collection. Refrigerate the specimen if unable to assay within 8
hours of collection. Hemolyzed specimens are not acceptable.Lipemic
specimens must be cleared prior to analysis.