Chromogranin A Test | Austin Pathology

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Chromogranin A

Alternate Names	CgA
Ordering Information	Chromogranin A is a neuroendocrine tumour marker. Serum is the preferred sample type. Lithium Heparin is accepted but plasma results may be systematically higher than serum and results from serum and plasma should not be compared directly.
Laboratory	Referred Test
Specimen	Blood
Container	Serum tube (gold cap OR red cap w. yellow insert)
Collection Instructions	Collect at room temperature
Minimum Adult Volume	5mL
Minimum Paediatric Volume	None
Frequency	Fortnightly
Reference Interval	This is a referred test. Please consult reference interval supplied with result.

These PDF documents can be downloaded for your reference

Order of Draw (PDF)

Swab Collection Guide (PDF)

Pre-Transfusion Specimen Requirements (PDF)

Requirements for Pathology Service (PDF)

Test Code	CGA
Container ID	S, SP, LH, LHP
Storage Instructions	Store frozen at -20°C
Additional (Storage) Instructions	Instructions for: Regional Laboratories Store aliquots frozen at -20°C Store Primary Serum refrigerated at 4°C
Transport Instructions	Transport frozen
Additional Transport Instruction	Instructions for: Regional Specimen Receptions Transport aliquots frozen in biofreeze bottles to Heidelberg Laboratory
Laboratory Notes	Instructions for: Metropolitan and Regional Specimen Receptions Centrifuge, aliquot, and freeze serum within 48 hours of collection. Instructions for: Heidelberg Specimen Reception Place sample in frozen (-20°C) Sendout tub
External Laboratory	Pathology Department, Peter MacCallum Cancer Centre