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Catalog ID Factor IX Factor IX

CPOE Test Name

Factor IX Level

Synonyms

Antihemophilic Factor B

Specimen Type

Plasma

Specimen Requirements

Light Blue Top (Sodium Citrate) tube; 2.7 mL blood

Storage and Transport

Room temperature. Transport to the lab immediately.

Special Instructions

Always allow blue top/citrate tubes to fill completely.

Causes for Rejection

Tube improperly filled; specimen clotted; improper labeling; insufficient quantity

Reference Range

50 – 150%

Critical Values

<3%

Interpretation

Elevated: Acute or chronic illness, patient on oral contraceptives or during pregnancy. Decreased in Hemopholia A.

Turn Around Time

1 hour

Performing Lab

Core Laboratory BI 2023 721-2120

Test Consists

Quantification of factor activity level

CPT/HCPCS Code

85240

CPT / HCPCS Code

85240