Learning blood types made easy for nursing student. Easy Chart to understand blood compatibility, what tests are done to find your blood type. Learn what makes up O Negative (O-), O Positive (O+), A positive (A+), A negative (A-), B positive (B+), B negative (B-), AB positive (AB+), AB negative (AB-). #bloodtype #bloodcompatability #nclex #nclexstudy #nursingstudent