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Urea - Blood

Source Blood
Mnemonic UREA
UREAPD2 - post-dialysis
Specimen Requirements

1 x 3 mL or 4.5 mL light green (mint) top PST tube.  Gold top SST tube also acceptable.

0.2 mL plasma or serum

Minimum Whole Blood Volumes for Microcollections
Specimen Handling
Additional Information
Testing Location Chemistry-All Sites
Rural: CRL
Testing Frequency Daily
Alternate Name(s) BUN
Reference Interval

Age

Male

Female

Units

1-365 days

1.5-7.0

1.5-7.0

mmol/L

1-14 years

2.0-7.0

2.0-7.0

mmol/L

15-54 years

3.0-7.5

2.0-7.0

mmol/L

55-150 years

3.0-9.0

2.5-8.5

mmol/L