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Test Code C1EINH C-1 Esterase Inhibitor  

Important Note

Aids in diagnosis of hereditary angioedema and monitoring response to therapy
 

Additional Codes

50140

Specimen Type

Blood

Preferred Collection Container

SST

Collection Instructions

Separate serum from cells ASAP or within 2 hours of collection.
 

Collection Volume

2.0 mL

Minimum Collection Volume

1.0 mL

Testing Volume

0.5 mL

Rejection Criteria

Ambient. Grossly hemolyzed and/or lipemic specimens

Specimen Storage and Stability

Ambient: Unnacceptable; Refrigerated: 14 days; Frozen: 1 month
 

Day(s) and Time(s) Performed

Sunday through Saturday
 

Test Alias

50140; C1ES, C1 esterase inhibitor; C1 Esterase Inhibitor Antigen; C1 Inactivator; C1 Inhibitor; HAE; Hereditary Angioedema
 

CPT Coding

86160

EPIC Code

LAB2482

Methodology

Quantitative Turbidity
 

Acceptable Collection Container

SST, R-NoGel
 

Transport

Refrigerated

Turn Around Time

2-5 days

Lab Department

Referred Testing

LOINC

4477-6