K-positive donor red cells were mistakenly transfused to a r…

K-positive donor red cells were mistakenly transfused to a recipient (patient) with anti-K and the patient had a transfusion reaction.   The patient’s posttransfusion blood sample has a positive direct antiglobulin test (DAT) with polyspecific antihuman globulin (AHG). The direct antiglobulin test is positive because anti-K is an __________ antibody that has sensitized (attached to) the __________ cells in vivo.

The town of Beneficence has an ordinance prohibiting profess…

The town of Beneficence has an ordinance prohibiting professors from writing exam questions about any harm inflicted on one’s self or others, the concern being that impressionable students might get inspired by such questions and consequently harm themselves or others.  Elizabeth’s law professor writes an exam question involving a student poisoning her roommate.  Elizabeth loves this idea, and that evening poisons her roommate. Her roommate survives, but becomes very ill.  Which of the following represents the roommate’s best claim against the professor?

A group O, D-positive mother gave birth to an A-negative inf…

A group O, D-positive mother gave birth to an A-negative infant. After 24 hours, the newborn’s bilirubin level rose to 19 mg/dL. A direct antiglobulin test performed on the cord blood specimen was positive with anti-IgG. What is the most probable antibody causing this?