Allergens, Inhalants, Southwest Basic
Also known as: SW PRO
Use
This test is used to detect allergen-specific IgE in patients suspected of having an allergy to inhalant allergens common in the Southwest region, such as cat and dog dander, various fungi/molds, grasses, trees, and weeds. The quantitative measure of allergen-specific IgE informs clinicians of the severity and potential for clinical reaction, though it must be correlated with clinical history and in vivo reactivity as laboratory results alone may not predict clinical response or anaphylaxis.
Special Instructions
It is important to avoid multiple patient encounters and multiple specimen tubes for accurate allergen testing. Additionally, separating serum from cells quickly, within 2 hours of collection, is critical for test reliability.
Limitations
Although increasing ranges of allergen-specific IgE concentrations reflect higher amounts of IgE, these levels may not directly correlate with the degree of clinical response or results from skin testing. A test result below 0.10 kU/L indicates no significant allergen level detected, while results between 0.10-0.34 kU/L have undetermined clinical relevance. Negative results do not exclude the possibility of clinical allergies or anaphylaxis.
New York Approved
Methodology
Immunoassay (ImmunoCAP)
Biomarkers
LOINC Codes
- 6020-2
- 6833-8
- 6178-8
- 6153-1
- 6234-9
- 6075-6
- 48767-8
- 6109-3
- 9828-5
- 6098-8
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1.05 mL
Minimum Volume
0.56 mL
Container
ARUP Standard Transport Tube
Patient Preparation
Multiple patient encounters should be avoided.
Storage Instructions
Refrigerated
Causes for Rejection
Hemolyzed, icteric, or lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |