Direct FISH without Karyotyping (Please specify the required FISH probes)

Specimen Container	Amniotic fluid container / CVS transport Media / Lithium heparin blood tube
Specimen Requirement	Amniotic fluid (5ml) / Chorionic villi (5mg) / Fetal cord blood/ neonate blood (1.0ml) Sterile techniques must be observed.
Specimen Storage/Transport	Store specimen at room temperature. For after office hours store at 4-8^oC in lab reception refrigerator. Transport to laboratory as soon as possible.
Orderable as Urgent?	No
Turn Around Time	Interphase cells: 3 working days
Reference Value(s)	-
Testing Laboratory Location	KKH
Laboratory	Cytogenetics
Contact Number	6394 1392
Day and Time Performed	When requested
Orderable on CPOE?	Yes
Downtime Form	Lab Cytogenetics
Additional Information	Consent required. Please fill up “Karyotyping / Fluorescence In Situ Hybridisation (FISH) for Constitutional Genetic Testing” [85060-FM-MB-103]. Direct FISH probes options are: • LSI 13 • LSI 21 • CEP 18 • CEP X and CEP Y FISH results are intended to be reported and interpreted only in conjunction with results from standard cytogenetic analysis, performed concurrently, using the same patient specimen. For other FISH probes option, please contact the laboratory for probe availability and indicate the type of DNA FISH probes required

Change History Notes

15 Mar 2024 09:00 AM

Updated Specimen requirement and Specimen Container.
05 Mar 2024 12:00 AM

Updated Consent Form.
04 Jan 2023 12:00 AM

Updated Specimen Requirement, Specimen Storage / Transport.
29 Oct 2021 12:00 AM

Updated Downtime Form and Consent Form.
29 Sep 2021 11:15 AM

Updated Specimen Container, Specimen Requirement and Additional Information.

Last Updated - 28 May 2025