Hypersensitivity Pneumonitis I, (Farmer's Lung Panel)
| Abbrev Code: | HYPN | ||
| Order Code: | LAB3555 | Order Name: | Hypersensitivity Pneumonitis |
| Synonyms: | Allergic Lung Serology; Farmer's Lung Panel; Pneumonitis, Hypersensitivity | ||
| Methodology: | Immunodiffusion | ||
| CPT Codes: | 86331 x4, 86606 x2 | ||
| Test Includes: | Antibody titers to Aspergillus fumigatus #1 and #6, Aureobasidium pullulans, Micropolyspora faeni, Thermoactinomyces vulgaris #1, and pigeon serum | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported within 3-7 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2 mL |
| Minimum\Peds Volume: | 0.5 mL |
| Container: | Red or gold (gel) Alternate Containers: Red (no gel) |
Processing and Shipping
| Specimen Processing: | Centrifuge ASAP and aliquot 1 mL, 0.15 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 55076 |
Interpretive
| Reference Range: |
Antigens such as thermophilic actinomyces, fungi, and animal proteins have been identified as causative agents for hypersensitivity pneumonitis. Precipitating antibodies against the offending antigen can be demonstrated in most active cases of hypersensitivity pneumonitis. However, a positive test does not always indicate active disease since asymptomatic individuals may develop precipitins without any features of hypersensitivity. A positive test is a helpful diagnostic tool when supported by historical and clinical evidence. The absence of a positive test does not rule out hypersensitivity pneumonitis.
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| Use: | Aid in diagnosis of farmer's lung syndrome, a hypersensitivity pneumonitis. |
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