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- How much blood and stem cells does a typical umbilical cord hold?
The median size of cord blood collections in family banks is 60mL or 2 ounces. That small volume of liquid corresponds to 470 million Total Nucleated Cells (TNC) or 1.8 million cells that test positive for the stem cell marker CD34. Thus, most healthy full-term babies have over a million blood-forming stem cells in their umbilical cord blood. By comparison, most public cord blood banks will only keep collections that are much bigger than average, and throw out the donations that are below a threshold of a billion TNC, corresponding to a blood volume of about 90-100 mL or 3 ounces.
Sun, JJ et al., Transfusion Sept. 2010; 50(9):1980-1987
- How is the website of the Parent's Guide to Cord Blood unique?
- Only searchable map of US donation locations.
- Only worldwide directory of private/family cord blood banks that is actively maintained.
- Only website offering a Compare Banks tool that is not a marketing feature of one of the Banks.
- Only list of "diseases treated" that differentiates between standard vs. experimental therapy, and whether the treatment uses stem cells from the patient vs. a donor.
- Only cord blood web site that is accredited by Health on the Net (HON) standards for accuracy and ethics.
- Will my delivery hospital allow me to use any family bank?
In the US, the answer to this question is almost always YES. However... a handful of hospitals have signed exclusive contracts requiring their patients to use certain family banks, so it is best to check in advance.
Those hospitals who have made exclusive partnerships will argue that it improves their level of care, because their staff train with and stock the collection kits for the banks they have approved. The hospital probably has a financial incentive too. However, for parents it means a lack of consumer choice.