Urea Nitrogen (BUN)

Synonyms

• BLOOD
• BLOOD UREA NITROGEN
• BUN
• LAB140

Cerner Name

Blood Urea Nitrogen

Clinical Info

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

Container

Gold Top Tube

Collection Instructions

Submit only 1 of the following specimens:
 
Plasma
Container/Tube:  Mint green-top (lithium heparin gel) tube(s)
Specimen:  1 mL of lithium heparin plasma
Transport Temperature:  Refrigerate
Collection Instructions:
Note:  1. Indicate plasma on request form.
2. Label specimen appropriately (plasma).
 
Serum
Container/Tube:  Gold-top tube(s)
Specimen:  1 mL of serum
Transport Temperature:  Refrigerate
Collection Instructions:
Note:  1. Indicate serum on request form.
2. Label specimen appropriately (serum).

Transport Instructions

Refrigerate

Specimen Stability

7 days Room Temperature
7 days Refrigerated
1 year Frozen

Methodology

Kinetic, Urease

Days Performed

Monday - Sunday, Continuously

Performing Laboratory

Northwell Health Laboratories

CPT

84520

PDM

5300025

Only Orderable at Locations:

Orderable Everywhere

Results

Result Interpretation

Forms