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By Mayo Clinic staffBefore chorionic villus sampling, you can eat as usual. You may need to have a full bladder for the procedure, so drink plenty of fluids before your appointment. Depending on the placental position, however, you may be asked to empty your bladder just before the procedure. Your health care provider may ask you to sign a consent form before the procedure begins. You may want to ask someone to accompany you to the appointment for emotional support or to drive you home afterward.
- Ghidini A, et al. Chorionic villus sampling: Risks, complications and techniques. www.uptodate.com/home/index.html. Accessed Jan. 18, 2010.
- Diagnosing birth defects. American College of Obstetrics and Gynecology. http://www.acog.org/publications/patient_education/bp164.cfm. Accessed Jan. 18, 2010.
- Cunningham FG, et al. Williams Obstetrics. 23rd edition. New York, N.Y.: McGraw-Hill Companies; 2010. http://www.accessmedicine.com/content.aspx?aID=6021591. Accessed Feb. 8, 2010.
- Simpson JL, et al. Prenatal genetic diagnosis. In: Gabbe SG, et al. Obstetrics: Normal and Problem Pregnancies. 5th ed. Philadelphia, Pa.: Churchill Livingstone Elsevier; 2007:1.
- Chorionic villus sampling. March of Dimes. http://www.marchofdimes.com/professionals/14332_1165.asp. Accessed Feb. 9, 2010.
- Cystic fibrosis: Prenatal screening and diagnosis. American College of Obstetricians and Gynecologists. http://www.acog.org/publications/patient_education/bp171.cfm. Accessed Feb. 9, 2010.
- Tay-Sachs disease and Sandhoff diseases. March of Dimes. http://www.marchofdimes.com/pnhec/4439_1227.asp. Accessed Feb. 9, 2010.
- Harms RW (expert opinion). Mayo Clinic, Rochester, Minn. Accessed Feb. 10, 2010.
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