Lab Dept:

Anatomic Pathology

Test Name:


General Information

Lab Order Codes:

Only orderable from lab: POCC


Placenta; Stillborn tissue

CPT Codes:

88262 – Chromosome analysis; count 15-20 cells, 2 karyotypes, with banding
88233 – Tissue culture skin or other solid tissue biopsy

Test Includes:

Chromosome analysis


Test Indications:

Useful for determining sex of a baby or chromosome abnormality

Lab Testing Sections:

Anatomic Pathology - Sendouts

Referred to:

Abbott Northwestern Cytogenetics (ANW Test: 428)

Phone Numbers:

MIN Lab: 612-813-6711

STP Lab: 651-220-6560


Test Availability:

Monday - Friday, on-call Saturday and Sunday

Turnaround Time:

6 - 15 days

Special Instructions:

Aseptically collect tissue as soon as possible after delivery. Placenta should be taken from the fetal surface (include tissue from inside the placenta). Place all specimens collected in a screw-capped, sterile container with sterile saline or RPMI media. Refrigerate specimens after collection. Specimens cannot be frozen. Forward promptly.


Specimen Type:

Placenta, stillborn tissue


Sterile screw-capped container


See above instructions, Request form should include date and time of specimen collection, attending physician, diagnosis (or reason for referral), clinical status, information regarding medication or transfusions, and specimen type.


Special Processing:


Sample Rejection:

Frozen specimens


Reference Range:

46, XX or 46, XY

No apparent chromosome abnormality.

Photograph of the representative karyotype included.


Abbott Northwestern Cytogenetics Lab