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Karyotype (products of conception)

Also known as: Chromosome studies, karyotype (tissues), karyotype (miscarriage)

Test category:

Reproductive - Miscarriage

Use of test

Purpose:

Chromosome analysis can detect abnormalities of chromosome number or structure. These abnormalities can provide diagnostic and prognostic information in many settings, including studies of aborted material and still births. Note that this testing is now superseded by Microarray (products of conception).

Utility:

Chromosome analysis can identify the cause of miscarriage and the potential for recurrence. 

Ethical considerations:

This is an assay for mutations which may be heritable or de novo. It may raise issues of ethics or consent that are different from most other investigations ordered in the routine care of a patient.

Methodology:

Analysis of metaphase chromosomes by light microscopy. Chromosomes are counted, and examined for structural abnormalities.

Requesting the test

Ordering:

This test can be requested by any medical practitioner.

Sample required:

Fresh material in a sterile container. Add sterile tissue culture medium to very small samples.

We recommend that the patient or another adult check the labelling of request forms and sample containers.

Turnaround time:

28 business days.

Price:

This test has a Medicare rebate which, subject to the requirements of the Medicare descriptor being met, may cover all or part of the cost.

Rebate:

The Medicare details, including descriptor and schedule fee, are listed under MBS item 73287.

Click here for our billing policy.