The distribution of blood types may be different for specific ethnic groups: Blood Group / RH StatusPercentage O Positive (O +)38 O Negative (O -)7 A Positive (A +)34 A Negative (A -)6 B. It’s also the only blood that’s safe for O-negative recipients. Laboratory diagnostic criteria for HTR are nonspecific in the trauma population and should be used with caution. Most Common Blood TypeO Positive (O+) is the most common blood type by average percentage.Blood Type Percentages in the USThis chart is an average distribution of the blood types in the United States. Because O-negative blood lacks the A, B and D antigens it is safe for patients when we don’t know their blood type. The conservation of Rh- blood for use in female patients may be detrimental to Rh- male patients. Rh- patients who receive Rh+ blood are at risk of developing anti-Rh antibodies, putting them at risk for HTR. High rates of injury recidivism in trauma patients increase the likelihood of multiple blood transfusions during their lifetime. Thirteen (33%) of 39 patients met criteria for HTR based on urinalysis and 29 (40%) of 72 patients tested met criteria for HTR based on hemoglobin and bilirubin values. One female patient had HTR from reactivation of anamnestic JK antibodies. One patient developed anti-Rh D antibodies. Three Rh- male patients received both Rh+ packed red blood cells and fresh frozen plasma, and one received Rh+ fresh frozen plasma. Four Rh- female patients received Rh+ fresh frozen plasma, but none received Rh+ packed red blood cells. Forty-five (34%) patients died: 27 on hospital day 1 the remaining 18 had no evidence of HTR before death. We hypothesized that patients given uncrossmatched blood may develop alloantibodies, placing them at risk for hemolytic transfusion reactions (HTRs).ĭata regarding alloantibody profiles and HTR occurrence were collected from the records of trauma patients at our university-based trauma center who received emergency uncrossmatched blood from July 2008 to August 2010.Ī total of 132 patients received 1,570 units of packed red blood cells.
A large genetic study from 2019, for example. The PPV and NPV describe the performance of a diagnostic test or other statistical measure. Everyone can receive O negative blood, so its sometimes called the universal blood type. The positive and negative predictive values (PPV and NPV respectively) are the proportions of positive and negative results in statistics and diagnostic tests that are true positive and true negative results, respectively.
Different blood types may make people more or less susceptible to certain conditions. Your O negative donation could help save lives in an emergency. Trauma patients receive emergency transfusions of unmatched Type O Rh-negative (Rh-) blood until matched blood is available. A person on a O blood type diet can eat most types of vegetables.