Final answer:
Option (C), In a laboratory information system, you can find previous lab results, tubes to collect, and the transportation method, but not vein preference. Blood type AB is determined by agglutination in both anti-A and anti-B wells.
Step-by-step explanation:
When accessing a laboratory information system, you can find various types of information related to patient lab work. The information that can typically be found includes:
- Previous lab results, which provide a history of the patient's lab tests and their outcomes.
- Tubes to collect, indicating which type of tubes should be used for specific tests due to the additives or the vacuum they contain.
- Transportation method, which details how the samples should be transported to maintain their integrity, including temperature conditions or special handling.
However, information such as vein preference is not typically found in a laboratory information system.
In clinical practice, when a blood type is determined through testing, the presence of agglutination in both the anti-A and anti-B wells signifies that the patient has type AB blood, which is a normal response.
During the hour that a blood sample is left to rest in a glass tube, it clots, and the cellular components settle, separating the clear, yellowish serum from the clotted cells which can then be harvested for further analysis.
In emergency situations where there is severe bleeding and no time to determine the patient's blood type, type O negative blood is used for transfusion because it is considered the universal donor type and is less likely to cause adverse reactions.