Mobile Site ›

Test Catalog

Test ID: FSCT    
Sex Chromosome Determination, FISH, Tissue

Specimen Type Describes the specimen type needed for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Please provide a pathology report with each tissue specimen. The laboratory will not reject a specimen that arrives without this information but will hold the specimen until a pathology report is received.  


Preferred: Formalin-fixed, paraffin-embedded tumor tissue block and 1 hematoxylin and eosin slide

Acceptable: Four consecutive unstained 5-micron-thick sections placed on positive-charged slides and 1 hematoxylin and eosin slide

Forms: New York Clients-Informed consent is required. Please document on the request form or electronic order that a copy is on file. An Informed Consent for Genetic Testing (Supply T576) is available in Special Instructions.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

2 unstained slides and 1 hematoxylin-and-eosin (H and E) slide

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
TissueAmbient (preferred)