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Allergy & Intolerance

Histamine Blood Test

Histamine blood testing provides insight into mast cell activity and immune reactivity. Combined with DAO and tryptase testing, it forms a comprehensive assessment of histamine-related conditions.

Doctor's Assessment Included

Histamine: what this test measures

This test measures the concentration of histamine in your blood. Histamine is released primarily by mast cells and basophils during immune responses. Plasma histamine has a short half-life, so blood must be processed carefully to avoid false elevations.

Histamine: why this value matters

Measuring blood histamine helps assess mast cell activity. It can support the diagnosis of anaphylaxis, mastocytosis, and histamine-related conditions. Pairing histamine with DAO and tryptase testing provides a more complete picture of histamine metabolism.

Histamine: when is testing worthwhile?

Histamine testing may be useful if you experience unexplained allergic-type symptoms, suspected anaphylaxis, or symptoms suggestive of mast cell disorders. Blood should ideally be drawn during or shortly after a symptomatic episode. Consult your healthcare provider for timing guidance.

Histamine: symptoms of a high or low value

Low Levels

Low histamine levels are generally considered normal and not associated with specific clinical symptoms.

High Levels

Elevated blood histamine may be associated with flushing, hives, itching, headache, rapid heartbeat, low blood pressure, abdominal cramps, and in severe cases anaphylaxis. Chronic elevation may suggest mastocytosis or histamine intolerance.

Histamine: lifestyle and this value

If histamine-related symptoms are identified, a low-histamine diet may help reduce symptom burden. Keeping a symptom diary helps identify triggers. Antihistamines may be recommended by your healthcare provider. Avoid known triggers and carry emergency medication if prescribed.

Histamine: frequently asked questions

How is blood histamine different from DAO testing?
Blood histamine measures the actual level of histamine in your blood, while DAO measures the enzyme that breaks histamine down. Together they provide a more complete picture of histamine metabolism.
Can certain foods raise blood histamine?
Yes. Histamine-rich foods and histamine-releasing foods can increase blood histamine levels. However, blood histamine testing is usually done to assess mast cell activity rather than dietary histamine.
Why does blood handling matter for this test?
Histamine can be released from blood cells during collection and processing, causing falsely elevated results. Proper sample handling with rapid centrifugation and cooling is essential for accurate results.

Tests with related values

These panels measure values from the same category as this marker.

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Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) PSA (Prostate-Specific Antigen) Prolactin Leptin Uric Acid Zinc
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Histamine

€130,-