UW Hospital and Clinics Lab Test Directory
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CGA- Genetic Dx
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| Test Code(s): |
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SLH801 / HCSLH801
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| CPT Code(s): |
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88230, 88262, 88289
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| Clinical Significance: |
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Determination of patient karyotype for: syndrome identification, atypical development, chromosome breakage syndrome, atypical sexual development, infertility, history of pregnancy loss, family studies, etc.
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| Testing Site: |
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Testing will be sent to an approved reference laboratory.
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| Turnaround Time: |
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Stat: 2 - 3 days.
Routine: Up to 14 days
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Specimen Requirements
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| Specimen: |
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Blood
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| Collection Instructions: |
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Testing requires referral screening. Referral Screening Flow Sheet may be printed from UConnect or see link in Additional Information. Contact UWHC Test Referral office at (608)262-6388 prior to collection.
This blood must be received and processed by WSLH within 48 hours of collection. Blood must be received by UWHC Core Laboratory Monday-Friday.
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| Collection Container: |
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Preferred: Green top (with sodium heparin anticoagulant)
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| Collection Volume: |
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Preferred: 4 mL
Pediatrics: 1 - 2 mL
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| Sample Analyzed: |
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Whole Blood
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| Volume Required: |
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Preferred: 4 mL
Pediatrics: 1 - 2 mL
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220) at room temperature (if temperature exceeds 85°, transport with coolant pack).
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| Unacceptable Criteria: |
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Whole blood that is clotted or frozen. Blood collected in EDTA, sodium-citrate or anticoagulants other than sodium heparin. Plasma and serum are not acceptable.
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| Stability: |
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Ambient: 48 hours
Refrigerated: 48 hours
Frozen: Not acceptable
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Interpretation
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Expected Results:
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46,XX or 46,XY; Apparently normal karyotype, photograph of a representative karyotype included with report.
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| Additional Information: |
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Cell culture, analysis of 20 cells with G-banding, two karyotypes; additional cells, karyotypes and/or other banding procedures are performed if indicated by initial results. If additional banding is indicated, will perform extended banding, Q-banding, C-banding, N-banding; if initial results suggest mosaicism, a total of 50 cells will be evaluated at no additional charge. If DNA Probes are required, there will be a small additional charge.
Referral Screening Flow Sheet
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Karyotype High Resolution Chromosome Analysis, cytogenetics
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Back to Lab Test Directory Index
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