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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Immunoglobulin E
Test Code542
CPT Codes
82785
Preferred Specimen
0.3 mL serum
Minimum Volume
0.3 mL
Other Acceptable Specimens
Plasma collected in: Sodium heparin (green-top) tube, lithium heparin (green-top) tube, or EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: Next day
Limitations
Some individuals with allergies have low total IgE but high concentration of allergen-specific IgE and may even suffer anaphylaxis with low to undetectable concentrations of IgE or allergen-specific IgE antibodies.
Reference Range
| ≤6 Weeks | ≤9 | kU/L | ||||||||||||||
| 3 Months | ≤17 | kU/L | ||||||||||||||
| 6 Months | ≤30 | kU/L | ||||||||||||||
| 9 Months | ≤39 | kU/L | ||||||||||||||
| 12 Months | ≤53 | kU/L | ||||||||||||||
| 2 Years | ≤93 | kU/L | ||||||||||||||
| 3 Years | ≤128 | kU/L | ||||||||||||||
| 4 Years | ≤160 | kU/L | ||||||||||||||
| 5 Years | ≤192 | kU/L | ||||||||||||||
| 6 Years | ≤224 | kU/L | ||||||||||||||
| 7 Years | ≤248 | kU/L | ||||||||||||||
| 8 Years | ≤280 | kU/L | ||||||||||||||
| 9 Years | ≤304 | kU/L | ||||||||||||||
| 10 Years | ≤328 | kU/L | ||||||||||||||
| Adult | ≤114 | kU/L | ||||||||||||||
Clinical Significance
For diagnosis of allergic disease. A normal IgE level does not exclude the possible presence of an allergic disorder.
