Aneuscreen (constitutional) | FISH
| Test Details | AneuVysion Multicolor DNA Probe Kit detects aneuploidy of chromosomes 13, 18, 21, X and Y |
| Methodology | Fluorescence in-situ hybridization |
| Performed | Monday – Saturday |
| Turnaround | 3 – 5 days; STAT aneuscreens performed within 24 – 48 hours |
| Specimen requirements | Peripheral blood (PB) |
| Sample collection | In sterile 15 mL sodium heparin (green-top) vacutainer tube Infants: 1-2mL, Children: 3-5mL, Adults: 5-10 mL; invert tube immediately after collection to prevent clots. |
| Minimum sample volume | 1mL |
| Storage/Transport Conditions | Room temperature |
| Unacceptable Conditions | Frozen specimens, clotted or hemolyzed specimens, inappropriate tube type |
| Special Instructions | Refrigerate if sample cannot be delivered within 24 hours; Send to Rapid Response or SLCH Central Receiving |
| CPT Code(s) | 88291×1, 88230×1, 88271×5, 88275×2 |