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Cord blood

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Cord blood

Definition:

Cord blood is a sample of blood collected from the umbilical cord at the time of birth.

How the test is performed:

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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 the test will feel:

You will not feel anything beyond the normal birthing process.

Why the test is performed:

Cord blood testing is performed to assess the following:

• Blood gases, to evaluate the oxygen, carbon dioxide, and pH levels
• Blood type and Rh
• Respiratory status
• Complete blood count (CBC)
• Platelet count
• Hemoglobin levels (Hgb)
• Hematocrit (HCT)
• Bilirubin levels
• Glucose
• Blood culture (if an infection is suspected)

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