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Test Code CYG Cytogenetics (Cancer Chromosomal Karyotyping)

Important Note

**Refer to Flow Chart for ordering guide**

Specimen Requirements

Submit one of the following:

 

Fresh specimen required

 

(A) Specimen Type: Bone marrow 
      Container/Tube: Green Top (Sodium Heparin)
      Volume: 1-2mL

 

(B) Specimen Type: Peripheral Blood
      Container/Tube: Green Top (Sodium Heparin)
      Volume: 4-8mL, preferably presence of >5% blasts

 

(C) Specimen Type: Lymph Node / Solid Tumour / Bone core
      Container: Sterile tube with 3ml collection media.
(Prearrange with Cytogenetics Laboratory for collection media)

 

(D)  Specimen Type: Effusions (CSF, Pleural Effusion etc)
      Container: Sterile universal container
      Volume: 3-6mL,preferably presence of >10% cells

 

Additional Collection Instructions: All specimens should be shipped to the lab within 12-24 hours of collection. Specimen received after 48 hours of collection will nonetheless be processed but results may be compromised. For overseas specimens, avoid shipping on Friday or eve of public holidays.

Days and Times Performed

Monday through Saturday (Office hours only). TAT 2-3 weeks

Methodology

Cell culture followed by chromosome analysis.

Service Code

1680004

Update

Last updated 07/09/2024

Unacceptable Condition

 

Specimen Type  
Bone Marrow/Peripheral Blood Frozen or collected in EDTA tube
Lymph Node/Solid Tumour/Other Tissues Frozen or formalin fixed tissues

 

Specimen Stability

 ** Preferred temperatures for storage prior to and during shipping to NUH **

 

Fresh specimen required

Ambient (Preferred): 12 hours
Refrigerate: 12 – 48 hours

 

Reference

An interpretative report will be provided.

Testing Laboratory

National University Hospital
Cytogenetics, 67722512

Useful For

  1. Detection of chromosome anomalies, which aid In diagnosis, prognosis, and management of haematological malignancies and other cancers.
  2. Monitoring treatment response.
  3. Detection of minimal residual disease.

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