Penicillium chrysogenum (M1), IgE
Penicillium chrysogenum (M1), IgE-4208
ImmunoCap
P. chrysogenum
Penicillium notatum
R16
An aid in the clinical diagnosis of IgE mediated allergic disorders in conjunction with other clinical findings.
- For more than one allergen, use this formula to calculate the amount of serum required:
50 µL X (# of allergens) + 250 µL = total amount serum needed
- Immediately following collection, thoroughly mix sample by gently inverting 5 times
- Allow sample to clot for a minimum of 30 minutes
- Spin within two (2) hours of sample collection
Gold serum separator (SST) tube
- Allow sample to clot for a minimum of 30 minutes
- Spin within two (2) hours of sample collection
- Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum
Ambient (preferred) - 14 days
Refrigerated - 14 days
Frozen - 3 months
ImmunoCAP®
< 0.10 kU/L
Allergy class severity values
ImmunoCAP IGE Class Reference Values:
Traditionally, allergen tests have been reported with an associated class value of zero to 6, with Class 0 indicating an undetectable allergen level, and Class 6 indicating a strong positive allergen level.
The following chart correlates ImmunoCAP IgE allergen results in kU/L to the associated class, with a suggested interpretation. This chart is applicable to all allergen-specific tests at Allina Health Laboratory, which are performed exclusively on ImmunoCAP assays. Note that the Class Reference Values provided are specific for ImmunoCAP assays and may not be used to interpret allergy tests performed by other (non-ImmunoCAP) methods.
| Class | IgE kU/L | Interpretation |
| 0 | <0.35 | Undetectable |
| 1 | 0.35 - 0.70 | Equivocal |
| 2 | 0.71 - 3.50 | Positive |
| 3 | 3.51 - 17.50 | Positive |
| 4 | 17.51 - 50.00 | Strong positive |
| 5 | 50.01 - 100.00 | Strong positive |
| 6 | >100.00 | Strong positive |