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C1 Esterase Inhibitor, Protein Quantitation
Also known as: C1 esterase inhibitor test, C1-INH level, Hereditary angioedema test
- Blood
- Same day / 24 hours
- Home pickup
- No fasting needed
Clinical use cases
Why doctors order it- Clinician-led evaluation of recurrent angioedema patterns
- Hereditary angioedema workup support
- Complement pathway assessment with specialist guidance
- Key complement regulatory protein measured in angioedema evaluation
- Used when swelling occurs without hives and clinician suspects C1-INH-related pathways
- Often paired with C4 and C1-INH functional activity