ARUP's Laboratory Test Directory

Hypersensitivity Pneumonitis I : 0055076

Mnemonic: HYPER PRO

Methodology: Immunodiffusion
Performed: Sun-Sat
Reported: 3-7 days
Specimen Required: Collect:  One 4 mL serum separator tube.

Transport:  1 mL serum at 2-8°C. (Min: 0.5 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.15 mL serum at 2-8°C.

Remarks:  Separate serum from cells ASAP.

Unacceptable Conditions:  Plasma
.


Stability:  After separation from cells: Ambient: 2 days; 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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