C1 ESTERASE INHIBITOR

What this test checks

Tests for a protein deficiency causing recurrent swelling (hereditary angioedema).

Why do people get this test?

Used in evaluating recurrent unexplained swelling, especially of face and lips.

When you should consider this test

• Recurrent swelling of face or lips
• Family history of angioedema
• Specialist requested

How to prepare

No fasting needed.