Final answer:
A phlebotomist demonstrates ethical control toward a patient by obtaining informed consent, ensuring confidentiality, and adhering to ethical principles such as beneficence, nonmaleficence, and justice. In blood typing, visible agglutination in the presence of both anti-A and anti-B antibodies signifies a normal response for blood type AB.
Step-by-step explanation:
One way a phlebotomist demonstrated ethical control toward a patient is by obtaining informed consent, ensuring the patient is aware of the nature and purpose of the blood draw, any associated risks, and to respect the patient's autonomy in the decision-making process. Another critical aspect of ethical conduct involves maintaining strict confidentiality regarding the patient's medical information. Additionally, a phlebotomist must adhere to the principles of beneficence (acting in the best interest of the patient), nonmaleficence (avoiding harm to the patient), and justice (ensuring fairness and equity in treatment).
In the mentioned blood typing scenario, if both wells with anti-A and anti-B antibodies visibly agglutinate, it indicates that the patient has blood type AB. This is a normal response for individuals with type AB blood as their blood contains both A and B antigens.