Description
Why It’s Done
The test is primarily used to:
1. Diagnose Hereditary Angioedema (HAE)
• HAE is a rare genetic disorder caused by low levels or dysfunctional C1-INH, leading to episodes of severe swelling (angioedema), especially in the skin, airway, and gastrointestinal tract.
2. Differentiate Types of Angioedema
• Helps distinguish hereditary angioedema from other causes of swelling, such as allergic reactions.
3. Monitor Treatment
• To track C1-INH levels during treatment for angioedema or related disorders.
Preparation
1. Fasting
• Usually, no fasting is required.
2. Medications
• Inform your healthcare provider about any medications, especially those that may affect the immune system.
3. Sample Collection
• A blood sample is drawn from a vein, typically in your arm.
• The procedure is quick and minimally invasive
