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Epic Code LAB1230092 Urea Nitrogen Clearance, Urea Nitrogen Serum

Test Name Alias

Urea Nitrogen ser urclear | LAB2111177 | 9118 | UUN

Interface Order Alias

1230092

Quick Collect

24H/NP/R

Specimen Requirements

Submit only one of the following specimens:


Preferred
Specimen Type: Plasma
Container/Tube: Mint Green Top (Lithium Heparin Gel)
Volume: 4.5 mL
Minimum volume: 0.5 mL plasma
Collection Instructions: Centrifuge within 2 hours


Acceptable
Specimen Type: Serum
Container/Tube: Gold Top (Serum Separator-SST Gel)
Volume: 5 mL
Minimum volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours

Specimen Transport Temperature

Refrigerate

Special Instructions

This test to be used with 24 hour Urea Nitrogen Clearance only when plasma/serum urea nitrogen is not already included in an accompanying panel

Specimen Stability

Ambient: 8 hours

Refrigerate: 72 hours

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available daily, usual TAT 1 day

Reference Range

0 up to 3 Months: 4 - 16 mg/dL
3 Months up to16 Years: 6 – 18 mg/dL
16 Years up to 150 Years: 8 – 20 mg/dL

 

Laboratory Critical Values Table

Performing Department

Chemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI
Corewell Health Pennock Laboratory, Hastings, MI
Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, MI
Corewell Health Lakeland Marie Yeager Cancer Center, St. Joseph, MI
Corewell Health Lakeland Niles Laboratory, Niles, MI
Corewell Health Lakeland Watervliet Laboratory, Watervliet, MI

Methodology

Urease/Glutamate Dehydrogenase (GLDH)

CPT

84520
84545

CDM Code

3018452001
3018454501

Epic Test ID

1230101255,
1230101257

LOINC

Urea Nitrogen: 3094-0

Reviewed Date

3/7/2024