Question 1
Hemolytic disease of the newborn (HDN) can occur if the mother:
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
Question 2
Examination of the throat in a child demonstrating signs and symptoms of acute epiglottitis
may contribute to which life-threatening complication?
Retropharyngeal abscess
Laryngospasms
Rupturing of the tonsils
Gagging induced aspiration
Question 3
If the sinoatrial (SA) node fails, then at what rate (depolarizations per minute) can the
atrioventricular (AV) node depolarize?
60 to 70
40 to 60
30 to 40
10 to 20
Question 4
What is the ratio of coronary capillaries to cardiac muscle cells?
1:1 (one capillary per one muscle cell)