Urine Histamine Test (24-Hour): Uses, Procedure, Results & Cost
About Urine Histamine Test (24-Hour): Uses, Procedure, Results & Cost
| Field | Value |
|---|---|
| Also Known As | Urine Histamine Test (24-Hour), Histamine 24-Hour Urine, 24-Hour Urinary Histamine |
| Sample Type | 24-hour urine collection |
| Fasting Required | No fasting required, but certain foods and medications must be avoided before and during collection |
| Report Time | within 3 to 7 working days |
| Recommended For | Adults of all genders; reference values not established for patients under 18 years |
| Price | Starting at ₹16,200 |
What is a Histamine, 24 Hours Urine (Urine Histamine) Test?
The histamine, 24 hours urine test measures the amount of histamine your body excretes in urine over a full day. Histamine is a chemical released by specialised immune cells when they are triggered, often during allergic reactions.
Doctors order this test when they suspect conditions related to abnormal histamine production or mast cell activity. It is also known as the urine histamine test (24-hour) or histamine 24-hour urine test.
What Does a Histamine, 24 Hours Urine (Urine Histamine) Test Measure?
The test analyses two key aspects of histamine activity in the body. Because histamine levels in the blood rise and fall very quickly, a single blood draw may miss important changes. Collecting urine across an entire day gives a much broader picture of how much histamine the body is producing and releasing.
The table below summarises what is measured:
| Parameter | What It Tells You |
|---|---|
| Histamine, 24-hour urine | The total amount of histamine released by immune cells and excreted in urine over 24 hours, reported in mg/24 h |
Why is a Histamine, 24 Hours Urine (Urine Histamine) Test Done?
A doctor may request this test to investigate unusual or recurring symptoms that suggest the body is producing excess histamine. It can also help monitor certain known conditions over time.
Common Symptoms That May Require This Test
- Sudden, intense swelling of the skin or soft tissues
- Hives or widespread itching
- Flushing (redness and warmth of the skin)
- Shortness of breath during unexplained episodes
- Diarrhoea or vomiting without an obvious cause
- Skin rashes or red-brown skin patches
- Abdominal cramping
Conditions This Test Can Help Detect
This test can support the diagnosis of several conditions. Here are the main ones your doctor may be investigating:
- Mastocytosis: A rare disorder where abnormal mast cells accumulate in the skin or internal organs
- Mast cell activation syndrome (MCAS): A condition where mast cells overreact repeatedly with no clear trigger
- Anaphylaxis: A severe allergic reaction; this test can help confirm whether one has occurred
- Histamine intolerance: Occurs when the body cannot break down histamine efficiently
- Gastric carcinoid tumours: Rare neuroendocrine tumours of the stomach that can produce excess histamine, causing flushing and itching
Histamine, 24 Hours Urine (Urine Histamine) Test for Chronic Disease Monitoring
This test is also used to track disease activity in conditions linked to persistent mast cell proliferation, such as mastocytosis and interstitial cystitis (chronic bladder inflammation). Urinary histamine excretion reflects the severity of mastocytosis, so doctors may repeat the test periodically to assess how well treatment is working.
How to Prepare and What to Expect
Preparing correctly for this test is important, as several factors can affect the accuracy of your results. Here is what you need to know before you begin the 24-hour collection.
Do You Need to Fast?
No fasting is required for this test. However, certain foods and medications must be avoided in the 24 hours before and during collection, so preparation is still important.
Practical Tips Before Your Test
- Avoid antihistamines, oral corticosteroids, and H2-blocking heartburn medications (such as ranitidine) for at least 24 hours before collection
- Avoid histamine-rich foods such as aged cheese, chicken liver, aubergine, sauerkraut, spinach, tomatoes, wine, and yoghurt for 24 hours before and during collection
- Keep the urine container refrigerated and away from direct sunlight throughout the collection period
- Inform your doctor about all current medications before starting the test
Step-by-Step Procedure
The collection process for a 24-hour urine histamine test is straightforward. Here is how it works:
- Collect the specimen container and any instructions from the laboratory or home collection agent.
- When you wake up, pass urine as normal and discard it. Note the time — this is the official start of your 24-hour collection.
- From that point onwards, collect every urine sample in the container throughout the day and night.
- Keep the container refrigerated and away from sunlight at all times. The laboratory may have added a preservative to the container — do not rinse it out.
- The following morning, collect your first urine sample to complete the 24-hour period.
- Return the container to the laboratory or hand it to the collection agent as soon as possible. Record the total volume on the request form if asked.
Factors That Can Affect Accuracy
- Exposure of the sample to direct sunlight during collection
- Taking antihistamines, corticosteroids, or H2-blocking medications before the test
- Eating histamine-rich foods in the 24 hours before or during collection
- Not refrigerating the sample correctly
- Failing to collect all urine during the full 24-hour period
- Dehydration, which can concentrate the sample
Understanding Your Histamine, 24 Hours Urine (Urine Histamine) Test Results
Your results should always be reviewed alongside your symptoms and medical history. The table below provides general reference ranges for adult patients.
| Parameter | Reference Range | Unit |
|---|---|---|
| Histamine, 24-hour urine | 0.006 to 0.131 | mg/24 h |
Note: Reference values have not been established for patients under 18 years of age. These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain factors can shift results even when no underlying disorder is present:
People with low diamine Flux oxidase activity (the enzyme that breaks down histamine) may show elevated levels after eating histamine-rich foods, drinking alcohol, or taking certain medications that block histamine breakdown. A very histamine-rich diet may raise urine histamine metabolite levels even in otherwise healthy individuals. Patients with basophilia (an elevated count of a type of white blood cell) — such as those with chronic myelocytic leukaemia or polycythaemia vera — may have abnormal histamine levels unrelated to mast cell disorders.
How to Maintain Healthy Levels
These general wellness tips may help support normal histamine metabolism:
- Identify and avoid personal allergen triggers where possible
- If histamine intolerance has been discussed with your doctor, consider trying a low-histamine diet under medical guidance
- Always speak to your doctor before stopping or adjusting any prescribed medication
Lupin Diagnostics Histamine, 24 Hours Urine (Urine Histamine) Test Price and Home Collection
The histamine 24-hour urine test price at Lupin Diagnostics starts at ₹16,200, and home collection is available across major cities. The table below shows approximate prices by location.
| City | Approximate Price (₹) |
|---|---|
| Mumbai | ₹16,200 |
| Bangalore | ₹16,200 |
| Chennai | ₹16,200 |
| Indore | ₹16,200 |
| Hyderabad | ₹16,200 |
| Pune | ₹16,200 |
| Kolkata | ₹16,200 |
| Bhopal | ₹16,200 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the test on the Lupin Diagnostics website
- Choose your city and preferred time slot
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre
- Receive your report via email or WhatsApp within the stipulated turnaround time
Home Collection
Lupin Diagnostics offers home sample collection for the histamine, 24 hours urine test across major cities in India. A trained collection professional will deliver the specimen container to your home and guide you through the process. All samples are processed in NABL-accredited laboratories, and your digital report is accessible via email or WhatsApp once ready.
Frequently Asked Questions
The 24-hour urine histamine test measures histamine excretion over a full day and helps assess mast cell activity in the body. It is commonly used to support the diagnosis of mastocytosis, mast cell activation syndrome (MCAS), histamine intolerance, and to help confirm severe allergic reactions such as anaphylaxis.
Histamine levels in the bloodstream can rise and fall rapidly, making a single blood sample less reliable. A 24-hour urine collection captures histamine production throughout an entire day, providing a more accurate assessment of overall mast cell activity.
Antihistamines, oral corticosteroids, and H2-blocking medications such as famotidine or cimetidine may affect test results and are often avoided for at least 24 hours before collection. Always consult your doctor before stopping any medication and provide a complete list of medicines you are taking.
Yes. Consuming large amounts of histamine-rich foods can increase urinary histamine levels and affect test accuracy. It is generally recommended to avoid fermented foods, aged cheeses, wine, alcohol, and other high-histamine foods for at least 24 hours before and during the collection period.
The urine collection container should be kept refrigerated throughout the entire 24-hour collection period and protected from direct sunlight. If the laboratory provides a preservative in the container, do not discard or rinse it out before use.
Elevated urine histamine levels may be seen in systemic mastocytosis, mast cell activation syndrome (MCAS), idiopathic anaphylaxis, certain allergic disorders, and some gastric tumours. Increased mast cell activity is a common underlying cause of elevated results.
Results are typically available within 3 to 7 working days after the laboratory receives the completed sample. Turnaround times may vary depending on the testing facility and location.
Urine Histamine Test (24-Hour): Uses, Procedure, Results & Cost
