Final answer:
In RBC transfusion, slow administration and maintenance of normal temperature and vital signs are anticipated, while rapid administration and abnormal vitals are contraindicated. Type O negative blood is given in emergencies due to its universal donor status. Agglutination with both anti-A and anti-B antibodies indicates a normal AB positive blood type.
Step-by-step explanation:
When considering red blood cell (RBC) transfusion, certain practices are anticipated while others are contraindicated. Slow administration of blood is generally anticipated as it minimizes the risks associated with transfusion, such as volume overload and adverse reactions. Rapid administration should be avoided unless clinically necessary. Similarly, normal temperature is anticipated during a transfusion, as elevated body temperature could indicate a transfusion reaction. Regarding heart rate and blood pressure, a transfusion should ideally result in stabilization of vital signs, so neither increased heart rate nor decreased heart rate, nor elevated blood pressure nor decreased blood pressure are desired outcomes per se; they may vary depending on the patient's clinical condition and response to transfusion.
If a patient arrives in critical condition and requires immediate transfusion, Type O negative blood is generally used because it is considered the universal donor type and can be safely transfused without significantly risking a hemolytic transfusion reaction. This is due to the absence of A, B, or Rh antigens on the RBCs, which minimizes the risk of the recipient's immune system attacking the transfused cells.
If a blood sample agglutinates in the presence of both anti-A and anti-B antibodies, this indicates that the patient has AB positive blood type, which is a normal response for individuals with this blood type. They have both A and B antigens on their red blood cells.