How you prepare
By Mayo Clinic staffBefore cordocentesis, you can eat and drink as usual. Your health care provider may ask you to provide a blood sample and sign a consent form before the procedure begins. You may want to ask your partner or another close contact to accompany you to the appointment for emotional support or to drive you home afterward.
- Ghidini A. Fetal blood sampling: Indications and invasive fetal therapy. http://www.uptodate.com/home/index.html. Accessed March 9, 2010.
- Ghidini A. Fetal blood sampling: Technique and complications. http://www.uptodate.com/home/index.html. Accessed March 9, 2010.
- Grace D, et al. Training for percutaneous umbilical blood sampling during Maternal Fetal Medicine fellowship in the United States. Prenatal Diagnosis. 2009;29:790.
- Diagnosing birth defects. American Congress of Obstetricians and Gynecologists. http://www.acog.org/publications/patient_education/bp164.cfm. Accessed March 9, 2010.
- Harms RW (expert opinion). Mayo Clinic, Rochester, Minn. March 30, 2010.

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