Yale New Haven Hospital

Department of Laboratory Medicine
Test Directory

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Bun/creatinine/eGFR

Lab Section: 

Chemistry

 

Lab Location: 

Main Lab

Test ID: 

LAB2704

 

Methodology: 

Enzymatic

Schedule: 

On request

Reported: 

1 hour for STAT orders; 4 hours for Routine orders

Specimen Requirements: 

Collection: 3.0 mL Primary Light Green; Dark Green and Gold Top tube accepted.
Pediatric volume: 0.3 mL (Plasma or Serum)

 

Notes: 

African-Americans may have an average 21% higher eGFR than value shown. Values under 60 mL/min/1.73 m2 may indicate CKD if noted for more than 3 months”.

Tests in this Panel: 

Test Name

Reference Interval

BUN [LRR698]

Age Limit

Sex

Normal Range

0 - 999 Years

Any

8

—

18 mg/dL

Creatinine [LRR795]

Age Limit

Sex

Normal Range

0 - 4 Days

Any

0.30

—

1.00 mg/dL

4 Days - 9 Years

Any

0.20

—

0.80 mg/dL

9 Years - 15 Years

Any

0.50

—

1.00 mg/dL

15 Years - 999 Years

Any

0.50

—

1.20 mg/dL

BUN/Creatinine Ratio [LRR12357]

Age Limit

Sex

Normal Range

0 - 12 Months

Any

10.0

—

30.0

12 Months - 999 Years

Any

10.0

—

20.0

Last Changed: 

9/1/2017 2:41 PM

Last Reviewed: 

9/1/2017 2:41 PM