Cord Blood Tests
Cord Blood Tests
- cord blood test
- cord blood sampling
Who is a candidate for the test?
How is the test performed?
What is involved in preparation for the test?
What do the test results mean?
Blood gases, to evaluate the oxygen and carbon dioxide levels in the newborn baby
- Cord pH (acid level)
- Respiratory status, including pH, pCO2, pO2. pH tells how the lungs are functioning in using oxygen and releasing carbon dioxide. pO2 and pCO2 measure the pressure levels of oxygen and carbon dioxide in the baby.
- Complete blood count, called
- Platelet count, which is one measure of the blood's clotting ability
- Blood cultures for
aerobicand anaerobicbacteria to rule out infection Bilirubin Blood glucose
- A low pH (less than 7.25) indicates high levels of acid in the infant's bloodstream. This may occur if the mother or baby does not get enough oxygen during labor. It may also happen if the umbilical cord becomes compressed during delivery.
- A positive
blood culturemay show abnormal bacteria in the mother or infant.
- A high
blood glucoselevel may be present if the mother has diabetes. If so, the baby may have a dramatic drop in his or her blood glucose level after birth. This condition is called hypoglycemia. jaundicein the mother. This is a yellowing of the skin caused by too much of the liver protein called bilirubin in the blood. Rh incompatibility, which is a problem with blood compatibility between the baby and the mother
- Dubin-Johnson syndrome, a condition in which a collection of bilirubin in the baby's liver cells causes jaundice
- sulfa medicines taken by the mother during pregnancy
toxoplasmosis, an infection that causes destructive lesions of the nervous system rubella, also known as German measles, a disease that may cause birth defects in a baby if the mother had it during the first 2 to 3 months of pregnancy hepatitis, an inflammation in the baby's liver cytomegalovirus, known as CMV, an infection that may cause symptoms such as fever, lethargy, and loss of appetitein the baby
Manual of Diagnostic and Laboratory Test, Kathleen Pagana and Timothy Pagana
Tabers Cyclopedic Medical Dictionary, F.A. Davis Company