Casandra
Casandra Test Code LC03689Version 1 (DRAFT)
Performing Lab
Ragweed, False
Also known as: False Ragweed
Clinical Use
Order TestUse
Identifies patient sensitization to false ragweed (a weed pollen allergen) by measuring specific IgE antibodies, aiding in diagnosis of allergic reactions such as hay fever, nasal congestion, itchy eyes, or asthma specifically triggered by false ragweed.
Special Instructions
Not provided.
Limitations
Turnaround time may be prolonged if confirmatory or reflex testing is needed; result interpretation should consider clinical context, including possible falsely elevated IgE in individuals with very high total serum IgE due to nonspecific binding.
Test Details
Methodology
Immunoassay (FEIA)
Biomarkers
False Ragweed (W4) IgE
AnalyteFalse Ragweed (W4) IgE
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
LOINC Codes
Order Codes
- 6115-0 - False ragweed IgE Qn
Result Codes
- 6115-0 - False ragweed IgE Qn
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
0.2 mL
Minimum Volume
Not provided
Container
Red‑top tube or gel‑barrier tube
Storage Instructions
Room temperature
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 3 months |
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