We get a second draw (if no previous history), or use another lab tube, different collector, for A,B,AB patient's. If a tube is erroneously Type O, there is no harm to the patient. This keeps the second draws to a minimum, and provides saftety. We give Type O until the second confirmatory type is completed.
We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.