Conditions a Challenge Test Can Diagnose
The main purpose of a challenge test is to find out if someone is allergic to food or medicine when other allergy tests haven’t given clear answers. They are, however, one of the best ways to find out if someone is allergic to food or medicine.
A challenge test can also be a good way to find out if a young child has an allergy, especially if they don’t like more invasive tests or needles. Lastly, a challenge test is often used to see if an allergy that was found in a younger child or adult has gone away now that the child or adult is older.
Patients react to medications differently, and about 5%-10% of adverse reactions are due to an actual medication allergy.learn more
Food allergies trigger an immune response and can be fatal, while food intolerance is often less serious.learn more
Possible Side Effects of a Challenge Test
A challenge test can trigger side effects, some of which under rare circumstances can be serious. That is why these tests are completed under close medical supervision. Under most circumstances, these reactions are mild and do not cause significant distress to a patient. In rare situations, a patient may experience a severe reaction, including anaphylaxis.
Patients who undergo a challenge test for an allergy can experience:
- Hives or Itching
- Other signs of an allergic reaction
Signs of anaphylaxis include:
- Feeling of lightheadedness
- Respiratory difficulties
- Fast, shallow breathing
- Rapid heart rate
- Collapsing or losing consciousness
- Becoming confused or anxious
The supervising medical professional can immediately and effectively address any side effect that a patient might experience due to a challenge test. Patients should work in close consultation with their doctor to discuss any anxieties about a challenge test.