Hemolytic disease of the newborn (HDN)

1. Question : Hemolytic disease of the newborn (HDN) can occur if the mother: Student Answer: Is Rh-positive and the fetus is Rh-negative Is Rh-negative and the fetus is Rh-positive Has type A blood and the fetus has type O Has type AB blood and the fetus has type B Instructor Explanation:HDN can occur only if antigens on fetal erythrocytes differ from antigens on maternal erythrocytes. Maternal-fetal incompatibility exists only if the mother and fetus differ in ABO blood type or if the fetus is Rh-positive and the mother is Rh-negative. This erythrocyte incompatibility does not exist in any of the other options. Points Received: 2 of 2 Comments: -589875941 MultipleChoice 68 True 0 -589875941 MultipleChoice 68 Question 2. Question : Examination of the throat in a child demonstrating signs and symptoms of acute epiglottitis may contribute to which life- threatening complication? Student Answer: Retropharyngeal abscess Laryngospasms Rupturing of the tonsils Gagging induced aspiration Instructor Explanation:Examination of the throat may trigger laryngospasm and cause respiratory collapse. Death may occur in a few hours. This selection is the only option that accurately identifies the life-threatening complication that can result from