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Patient Report - Tryptase & C1 Esterase Inhibitor

Angioedema & Mast Cell Disorder Evaluation Panel

Patient
Tyler Bishop
Date Collected
01/16/2026
Date Reported
01/27/2026
DOB
05/26/1987
Age / Sex
38 / Male
Fasting
Yes
Labcorp
Ordered Items: Tryptase; C1 Esterase Inhibitor, Func; C1 Esterase Inhibitor, Serum; Complement C1q, Quantitative
Tryptase
Test Current Result Flag Previous Result Units Reference Interval
Tryptase 5.9 Normal 6.0 (01/12/2026) ug/L 2.2-13.2

Clinical Significance

Tryptase is a marker for mast cell activation. Normal levels (2.2-13.2 ug/L) rule out systemic mastocytosis and mast cell activation syndrome. The slight decrease from 6.0 to 5.9 shows stable values.

C1 Esterase Inhibitor, Functional
Test Current Result Flag Units Reference Interval
C1 Est.Inhib.Funct. 82 Normal %mean normal Abnormal <41 | Equivocal 41-67 | Normal >67

Clinical Significance

Functional C1 Esterase Inhibitor at 82% is well within normal range (>67). This definitively rules out hereditary angioedema (HAE) Types I and II.

C1 Esterase Inhibitor, Serum
Test Current Result Flag Previous Result Units Reference Interval
C1 Esterase Inhibitor, Serum 26 Normal 29 (01/12/2026) mg/dL 21-39
Complement C1q, Quantitative
Test Current Result Flag Previous Result Units Reference Interval
Complement C1q, Quantitative 14.5 Normal 12.6 (01/12/2026) mg/dL 10.2-20.3
Summary Interpretation: All values within normal limits. Testing was performed as part of follow-up evaluation for unexplained hemarthrosis. Normal C1 Esterase Inhibitor (both serum and functional) rules out hereditary angioedema. Normal Tryptase rules out mast cell disorders. Normal C1q indicates no complement consumption.

Patient Details

Bishop, Tyler

3434 VOYAGER CIR, SAN DIEGO, CA, 92130

Phone: 636-448-1747

DOB: 05/26/1987 | Age: 38 | Sex: Male

Patient ID: 882686064459777

Physician Details

Z FELLOWS

Synergy Rheumatology

6120 Paseo Del Norte C-1, Carlsbad, CA, 92011

Phone: 760-891-4687

Account Number: 04025215

NPI: 1154733152

Specimen Details

Specimen ID: 016-338-1902-0

Control ID: 11653510225

Date Collected: 01/16/2026 1420 Local

Date Received: 01/16/2026

Date Reported: 01/27/2026 1806 ET

Performing Lab: Labcorp Burlington, 1447 York Court, Burlington, NC 27215-3361
Director: Sanjai Nagendra, MD | For inquiries: 800-859-6046 | Lab: 858-668-3700