Vitamin B12 unsaturated binding capacity

Alphabetical Test listing

Vitamin B12 unsaturated binding capacity-994

Test name:

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Vitamin B12 UBC

Useful for:

Differential diagnosis of polycythemia vera from secondary/relative polycythemias
Evaluate macrocytic/megaloblastic anemia;
Diagnose congenital absence of transcobalamin II or cobalophilin (transcobalamin I and III)

Patient preparation information:

Vitamin B(12) supplements should be discontinued at least 72 hours prior to specimen collection

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

2.0 mL

Minimum volume:

0.4 mL;Note: this volume does not allow for repeat testing

Processing instructions:

Spin

Transport container:

Gold serum separator (SST) tube

Alternate specimen type:

EDTA plasma

Alternate collection container:

Red serum vial/tube - 5 mL

Lavender (EDTA), 4mL

Alternate processing instructions:

Spin and separate

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Refrigerated (preferred) - 14 days

Ambient - 4 days

Frozen - 14 days

Reason for rejection:

Recently administered radioisotopes

Performing lab:

LabCorp Burlington (081869): R-NX

Days set up:

Mo, Th

TAT:

1 - 4 days

Method:

Radioassay

Reference ranges:

725 − 2045 pg/mL

CPT codes:

82608

LOINC code:

Result 2171-7

Date created:

05/22/2019

Revised date:

05/22/2019