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Cord blood
Definition
Cord blood is a sample of blood collected from the umbilical cord at the time of birth.
Why is the Test Performed?
Cord blood testing is done to determine the following: - Bilirubin levels
- Blood culture (if an infection is suspected)
- Blood gases, to evaluate the oxygen, carbon dioxide, and pH levels
- Blood sugar level
- Blood type and Rh
- Complete blood count (CBC)
- Platelet count
How is the Test Performed?
Immediately after the birth of your baby, the umbilical cord is clamped and cut. If cord blood is to be drawn, another clamp is placed 8 to 10 inches away from the first, then the isolated section is cut and a blood sample is collected into a specimen tube.
How to Prepare for the Test?
No special preparation is necessary for this test.
How will the Test Feel?
You will not feel anything beyond the normal birthing process.
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Review Date : 5/2/2008
Reviewed By : Linda Vorvick, MD, Seattle Site Coordinator, Lecturer, Maternal & Child Health, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and Susan Storck, MD, FACOG, Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine; Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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