Laboratory Test Detail

Last Updated: January 15, 2019 @ 10:13 am

1462

BUN + Creatinine

Specimen:Collect:
  • One SST

Also Acceptable:
  • One Green Top (Li Heparin)
  • One Green Top (Na Heparin)
  • One Red Top
Submit:
  • 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable:
  • 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated. Submit in a Standard Transport Tube.
Rejection Criteria:
  • Grossly Hemolyzed Samples
Stability:Ambient: 8 Hour(s); Refrigerated: 2 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology:
  • Colorimetric
  • Kinetic
Performed:Mon-Fri
Reported:1-3 Day(s)
CPT Codes:
  • 82565
  • 84520
Interpretive Data:Please see report for interpretive data.

ESTIMATED GFR Reference Range:
GFR = Less than 60: Chronic Kidney Disease, if found over a 3 month period.
GFR = Less than 15: Kidney Failure.
For African Americans, multiply the calculated GFR by 1.21.
GFR calculation is not valid for patients under age 18 years.
For patients over age 70 please interpret results with caution as results have not been validated for this calculation method
Components:
  • 1022 - UREA NITROGEN
  • 1014 - CREATININE, SERUM
  • 1040 - GFR ESTIMATION
  • 1029 - BUN/CREAT.RATIO
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