Testing for allergies can be done by two different methods — an allergy blood test and a skin prick test.
Allergy blood test
For an allergy blood test, a sample of the patient’s blood is sent to a laboratory for analysis. The doctor interprets the results to determine if the patient has allergen sensitisation, which may be responsible for the patient's symptoms.
Skin prick test
For a skin prick test, a patient is pricked with a series of needles that contain allergen extracts. The doctor looks for strong reactions like welts or red bumps to determine if the patient has allergen sensitisation.
|
KEY ALLERGY TEST DIFFERENCES |
Allergy Blood Testing |
Skin Prick Testing |
|
Typically requested and reviewed by your doctor |
YES |
YES |
|
You and your child can keep taking allergy medications |
YES |
NO |
|
Requires only one needle stick (a single blood sample) |
YES |
NO |
|
Carries no risk of severe allergic reaction |
YES |
NO |
|
Can be used when extensive skin rash is present |
YES |
NO |
|
Can be used for children as young as 3 months of age |
YES |
NO |
|
Component testing is available |
YES |
NO |
|
Same day results in the office |
NO |
YES |
Looking for information on food allergy? Click here >
