What is the incidence of intussusception?

1.   ?    1 in 500
2.   ?    1 in 2,000
3.   ?    1 in 5,000
4.   ?    1 in 8,000

What is the seasonal peak incidence of intussusception?

1.   ?    Fall
2.   ?    Summer and Fall
3.   ?    Winter and Spring

What percent of intussusception in infancy is associated with a pathological lead point?

1.   ?    Less than 1%
2.   ?    About 5%
3.   ?    10 - 15%
4.   ?    25%

Which virus has not been associated with intussusception?

1.   ?    Hantovirus
2.   ?    Rotavirus
3.   ?    Reovirus
4.   ?    Echovirus

Which disease is NOT associated with an increased incidence of intussusception?

1.   ?    Cystic fibrosis
2.   ?    HirschsprungÂ’s disease
3.   ?    Henoch-Schonlein purpura

Which is NOT true regarding the typical presentation of intussusception?

1.   ?    Vomiting in about 10 - 25%
2.   ?    Pain in nearly 100%
3.   ?    Currant jelly stools
4.   ?    Colicky character of the pain

Which is NOT true of the typical physical findings in intussusception?

1.   ?    Fever is uncommon
2.   ?    Sausage-shaped RUQ mass
3.   ?    Emptiness in RLQ
4.   ?    Peritoneal signs are uncommon

When air enema reduction of intussusception is performed, what is the maximum pressure used?

1.   ?    Maximum of 60 mm Hg
2.   ?    Maximum of 80 mm Hg
3.   ?    Maximum of 120 mm Hg

What is the incidence of recurrence of intussusception after operative or nonoperative reduction?

1.   ?    Less than 1 - 2%
2.   ?    Less than 4 - 5%
3.   ?    5 - 8%
4.   ?    10 - 15%