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Apr 5, 2015

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Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Ref Lab- Miscellaneous

Galactomannan, CSF

Galactomannan, CSF (RMISC) Ref Lab- Miscellaneous Lab Test

Name: Galactomannan, CSF

Test Name: Galactomannan, CSF

Health Link Test Code: RMISC

LIS Test Code: MISC

CPT Code(s): 87305

Methodology: Enzyme Immunoassay

Clinical Information:

Aids in early diagnosis of invasive aspergillosis.

Testing Site: Testing will be sent to an approved reference laboratory

Days Performed: Mon-Fri.

Specimen: Cerebrospinal fluid (CSF)

Collection Container: Numbered specimen tube from sterile disposable lumbar puncture tray

Also Acceptable: Sterile screw cap container

Collection Volume: 2 mL

Stability Ambient:

Not acceptable

Stability Refridgerated:

48 hours

Stability Frozen:

Okay

Testing Volume: 2 mL

Pediatric Testing Volume: 0.8 mL

Specimen Processing:

Centrifuge bloody CSF specimen. Transfer cell-free CSF to clear plastic vial. Freeze CSF.

Specimen Transport:

Transport specimen to UWHC Hospital Laboratory. Transport with coolant pack if coming from clinic location. If frozen, transport on dry ice.

Unacceptable Criteria:

Urine is NOT an acceptable specimen type for this test.

Interpretation:

CSF: < 0.5

 

Results are reported as numerical values (Index) which are interpreted as positive or negative.

Interpretation Type: Reference Interval

Test Limitations:

Piperacillin-tazobactam (Zosyn) has been shown to cause positive interference. Other genera of fungi such as Penicillium, Alternaria, and Paecilomyces have shown reactivity with the antibody used in this assay. This assay has not been evaluated for use with plasma or other sample types such as urine. The performance of this assay has not been evaluated with neonate samples. The use of anti-fungal therapy in some patients may result in reduced sensitivity with this assay.