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Austin Pathology
Test Directory
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Chromogranin A
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Alternate Names
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CgA
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Ordering Information
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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.
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Laboratory
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Referred Test
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Specimen
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Blood
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Container
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Serum tube (gold top)
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Collection Instruction
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Collect at room temperature
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Minimum Adult Volume
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5mL
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Minimum Paediatric Volume
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None
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Frequency
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Once a fortnight
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Reference Interval
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27 - 94 ug/L
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These PDF documents can be downloaded for your reference
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Test Code
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CGA
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Container ID
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S, SP, LH, LHP
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Opt. Container
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Lithium Heparin - Gel (mint green)
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Storage Instructions
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Store serum frozen at - 20 deg C
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Additional (Storage) Instructions
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Minimum volume of serum/plasma required is 500uL. Chromogranin A is stable in serum/plasma samples stored at 4 degrees up to 48 hours after collection. For samples collected in regional centres, transport serum/plasma at 4 degrees to Heidelberg ensuring samples are received well within the 48hr period. If samples are not expected to arrive in Heidelberg within 48hrs of collection, please freeze and send frozen. CSR Heidelberg: Please freeze all serum/plasma samples received. |
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Transport Instructions
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Transport frozen on dry ice
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External Laboratory
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Pathology Department Peter MacCallum Cancer Centre
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