ARUP's Laboratory Test Directory

Periodic Acid Schiff Stain : 0049045

Mnemonic: PAS

Methodology: Stain
Performed: Mon-Fri
Reported: 1-5 days
Specimen Required: Collect: Whole Blood: Lavender (EDTA), pink (K2EDTA), or green (sodium or lithium heparin).
OR Bone Marrow:
Heparinized aspirate.
OR Paraffin:
Block or slides.


Specimen Preparation: Whole Blood: Transport 7 mL whole blood (Min: 1 mL) AND 6 unfixed smears (Min: 6 smears).
OR Bone Marrow:
Transport 1 mL heparinized aspirate (Min: 1 mL) AND 6 unfixed smears (Min: 6 smears).
OR Paraffin:
Protect from excessive heat. Transport paraffin block or 4 four micron slides (Min: 4 slides)


Storage/Transport Temperature: All Specimens: Room temperature. Must be received within 24 hours of collection; testing must be performed within 48 hours of collection.
Paraffin:
Ship in cooled container during the summer months. Send Sunday-Thursday only.


Unacceptable Conditions: Fixed smears.

Stability (collection to initiation of testing): Peripheral Blood/Bone Marrow: Ambient: 24 hours
Paraffin:
Indefinitely

Reference Interval:
By report
CPT Code(s): 88313
Cross References: PAS Stain (Periodic Acid Schiff Stain)
 
 

 

 

 
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