ARUP's Laboratory Test Directory

Hypersensitivity Pneumonitis I : 0055076

Mnemonic: HYPER PRO

Methodology: Qualitative Immunodiffusion
Performed: Sun-Sat
Reported: 3-7 days
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Plasma.

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
Aspergillus fumigatus #1: None detected
Aspergillus fumigatus #6: None detected
Aureobasidium pullulans: None detected
Pigeon serum: None detected
Micropolyspora faeni: None detected
Thermoactinomyces vulgaris #1: None detected
Note: 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.
CPT Code(s): 86331 x6
 
 

 

 

 
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