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Test Code 8916 Crystal Identification

Purpose

Identifying the presence of Calcium Pyrophosphate Dihydrate (CPPD) [Pseudogout] and Monosodium Urates (MSU) [Gout] in synovial fluid.

 

Performing Laboratory

Copley Hospital

 

Methodology

Compensated Polarized Light Microscopy

 

Specimen Requirements

Specimen Type: Synovial Fluid

Container/Tube: Sterile Plastic Container

Specimen Volume: 2 mL
Specimen Minimum Volume: 1 mL


Collection Instructions: 

1. Label specimen with patient’s full name, date of birth, date

    & time of collection, collection site and person collecting.

2. Transport specimen to laboratory immediately at

    room temperature.

 

Reference Values

Normal: None Seen

 

Stability

Room Temperature: 24 Hours

 

Day(s) Performed

Daily

Analytical Time: 1 Day

 

Aliases

Calcium Pyrophosphate Dihydrate (CPPD)

Monosodium Urates (MSU)

Crystal Examination

Gout

 

Test Classification & CPT Coding

89060 × 2