Information
for Medical Professionals
Sending a Specimen
We
encourage you to contact us at any time with questions or concerns
while preparing blood samples, preparing for blastomere biopsy or
during the biopsy.
Remember, this is quite different from analysis for chromosomes, where
DNA contamination is not a problem. Here, contamination can cause a misdiagnosis.
If you even think you have contaminated a tube, please mark it so we
can double-check. The biopsy technique used at your IVF center should
be evaluated to assure that a result can be obtained and contamination
is not introduced into the specimen. Before sending your first case,
schedule a sample trial that we can analyze. We will provide feedback
and suggestions for improved technique when indicated.
The method of entering the zona pelucida has not been shown to affect
the analysis, slit, acid Tyrodes, or laser are all acceptable. It is
important to visually confirm that an intact blastomer has been placed
into the lyses buffer. If the blastomer is disrupted during biopsy, wash
or transfer into lyses buffer a second blastomer should be biopsied,
placed in a separate tube and labeled (as a second cell). The embryo
should be marked as possibly contaminated.
Whenever you have a question or concern, do not hesitate to contact
Genesis Genetics so
Biopsy Tips
- One
specimen tube open at a time.
- Avoid carry-over of lyses buffer to next cell. If cell lyses, change
pipet tips and biopsy a second cell in a separate tube labeled accordingly.
- Only
biopsy good-grade embryos. Poor-grade embryos are of no value.
- Do
not use oil.
- No
stage warmer.
- Limit the number of embryos biopsied at one time to 5 to prevent evaporation
of placement droplet and wash droplet.
- Limit
the transfer of media into wash droplet.
- Freezing the sample tubes in an upright orientation holds the DNA in
a set position through shipping for accurate DNA isolation.
Shipping Tips
- Check tube labels are readable before packing tubes.
- Include
original informed consent forms (yours and ours).
- Include
embryo biopsy worksheet.
- Keep a supply of cold shipping packets and Styrofoam containers that
come with reagents.
- Avoid dry ice.
- The day before biopsy, request courier pickup an hour after expected
completion time.
- Fax biopsy data worksheet ahead of shipment.
- Attach airline security letter on your letterhead to outside of box.
DISCLAIMER
The information contained in this website is provided for educational
purposes only. It is not intended, in any way, to be or substitute for
medical advice or medical care from a physician or other licensed healthcare
professional. The reader should consult a physician regarding health
matters and particularly with respect to symptoms that may require diagnosis
or medical attention. Information contained in this website or any electronic
links are subject to limitations on the accuracy, reliability and suitability
of Internet-accessible information, requiring that readers verify this
information through independent sources when using it or making decisions
based on it and the fact that accessibility of documents, programs, information
and any other material through this site does not imply suitability or
endorsement for any purpose by any parties and changes that occur since
the last update which may affect the accuracy and availability of the
information presented.
Questions?
Regardless of how mundane you think the question might be,
please call us:
Detroit,
MI
Tel/fax (313) 544-4006
Genesis Genetics Europe
Nottingham UK
+115-822-6169 |