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Epic Test Code LAB21113 Urea Nitrogen: Post BUN

Performing Location(s)

BMC,HRK

Synonyms

BUN: Dialysis

Specimen Type

Serum or Plasma

Preferred Container

Gold or Red top tube

Alternate Container

Green top tube

Blood Tube Draw Volume

Min 50% draw volume  

Minumum Volume to Submit for Testing

0.5 mL Serum or Plasma

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975

Storage Requirements

Sample tubes should be centrifuged within 2 hours of collection followed by transfer of the serum (red or gold top) or plasma (green top) to a labeled plastic, aliquot tube.

See Causes of Rejection for temperature requirements.

Transportation Needs

Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements". 

Causes for Rejection

Mislabeled or unlabeled specimen
Less than 50% draw for Vacutainer tubes
>4 days Refrigerated
>24 hours Room Temperature
>2 months Frozen
Hemolysis > 500 mg/dL HgB
Lipemia > 500 mg/dL Trig
Bilirubin > 20 mg/dL Bili

 

Reference Interval

All Population  Units Reference Range
  mg/dL 7-25

 

Limitations

This method reacts quantitatively within ammonium ions

Additional Information

Contraindications:

Use of these test codes are restricted to the specific needs of the Dialysis Unit

 

NOTE: Each specimen and requisition must be labeled to clearly identify the collection type

Available STAT

Yes

Days of Analysis

All

Methodology

Beckman AU/Dx Series

CPT Code

84520

Last Updated

18-Mar-22 BHD