B
Bilirubin, Direct
Description
Bilirubin Total
Test Code
2248
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container/Collection
Red-top tube or gel-barrier tube.
Storage Instructions
Room temperature
BNP
Description
B-Type Natriuretic Peptide (BNP)
Test Code
3091
Specimen
Plasma, frozen
Volume
0.8 mL
Minimum Volume
0.5 mL (Note: This volume does not allow for repeat testing.)
Container/Container
Lavender-top (EDTA) tube. Transfer specimen to a proper plastic transport tube before freezing.
Storage Instructions
Freeze
proBNP
Description
NT-proBNP
Propeptide of Brain Natriuretic Peptide
Test Code
3880
Specimen
Serum (preferred) or plasma
Volume
0.8 mL
Minimum Volume
0.3 mL (Note: This volume does not allow for repeat testing.)
Container/Collection
Red-top tube, gel-barrier tube or lavender-top (EDTA) tube.
Storage Instructions
Room temperature.
BUN
Description
Blood Urea Nitrogen
Test Code
4520
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container/Collection
Gel-barrier tube
Storage Instructions
Room temperature
Blood Type & RH Factor
Description
ABO Grouping and Rho(D) Typing
Test Code
6901
Specimen
Whole blood
Volume
4 mL
Minimum Volume
0.5 mL
Container/Collection
Lavender-top (EDTA) tube