Part F Module 19.6 Blood Typing and Matching Although DH had been put on a venti

ID: 3482187 • Letter: P

Question

Part F Module 19.6 Blood Typing and Matching Although DH had been put on a ventilator to assist with her respiration and she was continuously receiving intravenous fluids, her vital signs were becoming unstable. The oxygen saturation in her tissues was dropping, her heart rate was elevated, and her blood pressure was becoming dangerously low. DH needed functional erythrocytes to carry oxygen that her plasma did not contain. The typed and cross-matched blood the medical team was waiting for would not be ready in time. DH needed to be transferred to the pediatric intensive care unit (PICU) immediately. Her condition was rapidly declining DH's blood type was A+, and four units of blood had been ordered for her, but there was a delay at the blood bank. The oncology unit had an emergency supply of O- blood. One unit of type O- blood began transfusing while DH was transferred. A second and third bag of O- blood was prepared for transfusion as well. DH's parents were beginning to panic when the oncologist met them and escorted them to the PICU waiting room. The next few hours woul be critical, and there was a possibility that DH would not survive the night. Which of the following statements is false regarding the ABO and Rh blood groups? Erythrocytes that display Rh antigens on their plasma membranes are Rh+, while erythrocytes that do not display Rh antigens are Rh- Erythrocytes that display A, B, and Rh antigens on their plasma membranes are blood type AB+ The ABO blood group features two antibodies found on erythrocyte plasma membranes: the A antibody and the B antibody. The presence or absence of these antibodies results in four possible ABO types Erythrocytes that do not display A, B, or Rh on their plasma membranes are blood type O- Submit My Answers Give Up Continue

Explanation / Answer

The following statement is false regarding the ABO and Rh blood groups:

The ABO blood group features two antibodies found on erythrocyte plasma membranes: the A antibody and the B antibody. The presence or absence of these antibodies results in four possible ABO types.

The anti-A and anti-B antibodies are found in the plasma, not on the RBC plasma membrane. This is true for all types antibodies that they are found in plasma.

The person’s plasma does not contain the corresponding antibodies.

Blood group

Antigen on RBC membrane

Antibody in plasma

anti-B

anti-A

A, B

Absent

anti-A, anti-B