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Allergy Test in Singapore
Be informed, identify specific allergens, make changes
Allergy testing is a valuable tool for identifying specific allergens that may be causing or exacerbating your symptoms.
- Professional | Established | Trusted
- Comprehensive allergy screening
- Determine your allergen
Why should you do an allergy test?
According to the American College of Allergy, Asthma and Immunology, allergies affect more than 50 million people per year. Allergy testing is a valuable tool used to identify specific allergens that may be causing allergic reactions in an individual. Whether you experience symptoms like itching, sneezing, rashes, or gastrointestinal issues, allergy testing can provide valuable information that guides treatment and lifestyle adjustments.
What is an allergy?
An allergy is an overreaction of the immune system to a substance that is usually harmless to most people. These substances, known as allergens, can include pollen, pet dander, certain foods, insect stings, and medications. When a person with an allergy is exposed to an allergen, their immune system mistakenly identifies it as a threat and mounts a defensive response, leading to various symptoms. The immune system overreacts to the allergen by producing Immunoglobulin E (IgE) antibodies, which release histamine and other chemical mediators, causing an allergic reaction.
How is an allergy diagnosed?
Diagnosing an allergy involves a combination of a detailed medical history, physical examination, and specific diagnostic tests (skin prick tests, patch test and blood tests). The goal is to identify the substance (allergen) responsible for causing allergic reactions and to determine the severity of the allergy. Early diagnosis can help inform lifestyle, environmental changes and improve quality of your life.
What are symptoms of an allergy?
Allergy symptoms can range from mild to life-threatening. While some people may only experience mild discomfort, others may suffer from severe and potentially dangerous reactions. It is important to recognize the signs of an allergic reaction and seek appropriate medical care, especially if symptoms are severe or involve difficulty breathing, swelling, or anaphylaxis.
- Itchy, red, watery eyes
- Runny nose, sneezing, nasal congestion
- Asthma, Wheezing
- Hives, Eczema
- Abdominal pain, vomiting, diarrhoea
- Swelling of lips, face, eyes,
- Swelling of tongue and throat (severe symptoms that can lead to airway obstruction)
- Recurrent giddiness or collapse
Why should i test for a panel of allergens instead of a specific allergn?
Advantages of choosing a blood test
- No risk of allergic reaction: Unlike skin prick tests, blood test do not expose you to allergens.
- All ages: Can be used for infants as young as 6 months old
- Single Blood Draw: Only one blood draw is required, and multiple allergens can be tested from this single sample. This is more convenient than undergoing multiple skin prick tests.
- No Need to Discontinue Medications: Antihistamines and other allergy medications can interfere with skin prick tests by suppressing allergic reactions. With blood tests, you do not need to stop taking these medications, which can be important for individuals who rely on them to manage symptoms.
- Patients with Skin Conditions: For individuals with extensive eczema, psoriasis, dermographism (a condition where the skin easily forms welts when scratched), or other skin conditions, skin prick tests may not be feasible or accurate. Allergy blood tests provide an alternative that is not affected by these skin conditions.
- Precise Measurement of IgE Levels: Allergy blood tests measure the exact amount of specific IgE antibodies in the blood in response to each allergen. This quantitative data can provide insight into the severity of an allergy and can be useful for monitoring changes over time, such as in response to treatment.
- Comparison Across Allergens: The results can help in comparing the relative sensitivity to different allergens, which can aid in prioritizing which allergens to avoid or address through treatment.
- Comprehensive Testing: Blood tests can screen for a wide range of allergens, including common allergens like pollen, dust mites, pet dander, mold, and foods. They can be particularly useful in cases where multiple allergens are suspected, or when an allergy is difficult to identify.
Allergy Test Price
Test | Price (SGD) |
|---|---|
Single Allergen Screening | From 60 |
Food Allergy Screening (8 allergens) | 400 |
Inhalation Allergy Screening (15 allergens) | 600 |
Comprehensive Allergy Screening (59 allergens) | 650 |
Comprehensive allegry screening (59 allergens)
- Convenient and results turnaround within a week.
- Safe and free of allergic reactions or anaphylaxis
- Single blood sample for 59 allergens and its components.
- No fasting required or interruption of medication
- Does not rely on your skin condition
Inhalants
- Dust Mites (D.pteronyssinus, D.farinae)
- Fungi (Cladosporium herbarum, Aspergillus fumigatus, Alternaria alternata)
- Pollen (Johnson, Bermuda, Timothy Grass)
- Insect (American, German cockraoches)
- Animal Dander (Cat, Dog, Hamster)
Nuts, Seeds, Grains
- Peanut component (rAra h2, rAra h9)
- Nuts (Cashew nut, Hazelnut, Almond)
- Seeds and Legumes (Sesame, Mustard seed, Pea, Peanut, Soybean)
- Grains (Wheat, Maize, Rice, Gluten)
Food
- Fish (Codfish, Tuna, Salmon)
- Seafood (Blue crab, Shrimp/Prawn, Squid, Crab, Oyster)
- Meat (Cooked pork, beef, chicken)
- Baker's yeast (food additive)
Milk & Eggs
- Milk (Cow, Goat)
- Milk component (nBos d4-alpha-lactalbumin, nBos d5-beta-lactoglobulin, nBos d8 Casein)
- Egg (Egg yolk, Egg white)
- Egg component (nGal d 2 Ovalbumin, nGal d 1 Ovvomucoid)
Fruits and Vegetables
- Apple
- Kiwi
- Banana
- Peach
- Avocado
- Garlic
- Onion
- Celery
- Tomato
- Coconut
Occupational
- Latex
Frequently Asked Questions
The food allergy screening panel consists of:
- Anchovies
- Clam
- Crab
- Codfish
- Salmon
- Shrimp
- Squid
- Tuna
The inhalation allergy screening panel consists of:
- Alternaria Alternata
- Aspergillus Fumigatus
- Bahia grass
- Bermuda grass
- Biomia Tropicalis
- Cat Dander
- German cockroach
- Common Ragweed
- Curvularia Lunata
- D.Farinae
- D.Pteronyssinus
- Dog Dander
- Dust- Greer
- Jonhson grass
- Timothy grass
An allergy blood test is a diagnostic tool used to detect the presence of specific IgE antibodies in the blood. These antibodies are produced by the immune system in response to allergens, which are substances that can trigger allergic reactions. The test helps identify which substances a person is allergic to.
During an allergy blood test, a small sample of blood is drawn from a vein in the arm. This sample is then analyzed in a laboratory to measure the levels of IgE antibodies associated with specific allergens, such as pollen, pet dander, foods, or dust mites. The results indicate whether you have an allergy and the severity of your sensitivity to each allergen tested.
An allergy blood test is recommended in the following situations:
- When skin testing is not possible due to skin conditions like eczema or psoriasis.
- When there is a high risk of a severe allergic reaction (anaphylaxis).
- When a patient is taking medications that could interfere with skin test results.
- When an individual prefers not to undergo skin testing due to personal reasons, such as discomfort or fear.
Allergy blood tests are generally very safe. The risks are minimal and include mild discomfort at the blood draw site, such as slight pain, bruising, or, in rare cases, fainting. There is no risk of an allergic reaction since the test does not involve exposure to allergens.
Allergy blood tests are generally accurate, especially for identifying common allergens. However, the sensitivity and specificity can vary depending on the allergen. Blood tests are particularly useful for detecting allergies when skin testing is not possible or practical. Your healthcare provider will interpret the results in the context of your symptoms and medical history.
Allergy blood tests are effective at detecting IgE-mediated allergies, which are the most common type. However, they may not identify non-IgE-mediated allergies or intolerances, such as lactose intolerance or celiac disease. For these conditions, other types of tests or evaluations may be needed.
No special preparation is required for an allergy blood test. You can continue taking your medications and eat and drink normally unless your healthcare provider gives you specific instructions to the contrary. If you have any concerns or questions, it’s best to discuss them with your healthcare provider before the test.
Allergy tests insights
Allergy testing is a vital component of allergy diagnosis and management, offering critical insights into the specific allergens affecting patients. Comprehensive testing not only enhances patient safety and comfort but also contributes to more effective and personalized management strategies, ultimately improving patient outcomes and quality of life.
Schedule a consultation for Allergy test in Singapore
Allergy testing is essential for diagnosing allergies and understanding the specific triggers that contribute to a patient’s symptoms. Allergies can significantly impact quality of life, leading to chronic discomfort, impaired functioning, and, in severe cases, life-threatening reactions. By identifying the precise allergens responsible for these reactions, we can develop targeted management strategies to alleviate symptoms, prevent exposure, and enhance overall well-being.
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References:
Ansotegui IJ, Melioli G, Canonica GW, Caraballo L, Villa E, Ebisawa M, Passalacqua G, Savi E, Ebo D, Gómez RM, Sánchez OL. IgE allergy diagnostics and other relevant tests in allergy, a World Allergy Organization position paper. World allergy organization journal. 2020 Feb 1;13(2):100080.
ABOUT DR MOSES NG
MBBS (London) with distinction
Dip Practical Dermatology (Cardiff) with distinction
Member of American Acne & Rosacea Society
Fellow of American Society for Laser Medicine & Surgery
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Dr. Moses Ng is a distinguished professional in the field of aesthetic medicine, renowned for his expertise in advanced cosmetic procedures. With over 15 years of experience, extensive training and a keen eye for detail, Dr. Ng specializes in a wide range of treatments, including injectables, laser therapies, and acne scar management.
Dr. Moses Ng’s commitment to excellence and patient-centric approach have earned him a reputation as a trusted clinician in aesthetic medicine. His continuous pursuit of the latest advancements in the field ensures that his patients receive the highest standard of care and the most effective treatments available.