Final answer:
In a multiple casualty incident with immediate danger, an emergency move is used to quickly access critically injured patients. In emergency situations where a patient's blood type is unknown, O negative blood is transfused due to its universal compatibility. When both anti-A and anti-B antibodies cause agglutination, it indicates a blood type AB.
Step-by-step explanation:
Emergency Medical Response at a Multiple Casualty Incident
When responding to a multiple casualty incident involving an overturned bus where patients have been thrown around and are piled on top of each other, the emergency move is the type of move you would perform to gain access to the most critically injured patients. Emergency moves are used when there is an immediate danger to the patient or the rescuer, and it is crucial to quickly move the patient to a safer area to provide medical care. Given the described scenario, it is probable that there is immediate risk such as a fire, potential for an explosion, or structural instability of the bus that necessitates a rapid response.
Blood Transfusion in Emergency Situations
Following a motor vehicle accident, if the patient's condition is critical with severe bleeding and there is no time to determine their blood type, type O negative blood is typically transfused. This is because O negative blood is considered the universal donor type and is most likely to be compatible with all other blood types, minimizing the risk of transfusion reactions. The urgency of the situation dictates the need for immediate intervention without the usual compatibility testing.
Blood Typing in a Hospital Laboratory
When a technician observes agglutination in both wells after adding anti-A and anti-B antibodies to a patient's blood sample, this is a normal response for someone with blood type AB, indicating that the patient’s blood contains both A and B antigens. There is no need to suspect a technician error unless there are other inconsistencies within the test protocol or patient's known medical history.