Specimen:

Amniotic Fluid

Minimum:

Specimen obtained by referring staff physician.  Aseptically obtain 2 
sterile 15 cc tubes (7-10 cc in each tube) of amniotic fluid.  DO NOT 
FREEZE OR CENTRIFUGE.  Send specimen at room temperature.  Label tube 
with patient name and medical record number.

Delivery Instructions:

Submit specimen to laboratory as soon as possible after collection.

Specimen
Instructions:

Direct requests for performing the procedure (amniocentesis) to the
Prenatal Clinic in the Department of Obstetrics and Gynecology
(356-3561).  Make arrangements with the Cytogenetics lab before
sending the specimen.  If a specimen is collected over the weekend, 
please page the technologist on call by dialing 1-888-533-0186.  When 
it stops ringing, enter your phone number, the '#' sign, and hang up.  
Provide details of clinical information and family history (if 
applicable).

Testing Schedule:

Specimens accepted in the lab Monday-Friday, 0800-1700.  After hours 
specimens should be taken to specimen control and a message left on the 
lab voice mail.  In the case of an emergency, follow the instructions 
on the lab voice mail.

Analytic Time:

Allow 10-12 days for results.

Reference Range:

Male: 46,XY     Female: 46,XX

Comments:

A repeat specimen will be requested if there is no cell growth after 10 
days.

Questions regarding AFP testing and other prenatal screening tests, 
call the Prenatal Clinic (356-3561).


Cytogenetics Laboratory Web Site

CPT Code:

88235, 88267

See also:
Chromosomal Analysis, Fetal Blood (Prenatal Diagnosis)
Fluorescence In-Situ Hybridization (FISH-Prenatal-Aneuploidy/Microdeletion), Amniocytes, Chorionic Villi

See Additional Information:
Cytogenetics Testing