T or F: Indians have a particularly high incidence of pyloric stenosis.

1.   ?    True
2.   ?    False

Which has the highest risk of a child with pyloric stenosis having a sibling with the disease?

1.   ?    Father is index case
2.   ?    Mother is index case
3.   ?    Equivalent

T or F: With pyloric stenosis there is an increase in the size of the circular muscle fibers, but not an increase in their number (hyperplasia)?

1.   ?    True
2.   ?    False

If a child who underwent previous pyloromyotomy undergoes another operation years later, what does the pylorus looked like?

1.   ?    Still hypertrophic
2.   ?    Normal pylorus

What is the incidence of associated anomalies in children with pyloric stenosis?

1.   ?    Less than 5%
2.   ?    5 - 10 %
3.   ?    10 - 15%
4.   ?    15 - 20%

In how many percent of patients with pyloric stenosis can an 'olive' be palpated by an experienced examiner?

1.   ?    95%
2.   ?    70 - 90%
3.   ?    60 - 70%
4.   ?    50%

What distinguishes children with inherited metabolic disorders (IEM) or other diseases resulting in vomiting from an infant with pyloric stenosis?

1.   ?    Characteristic urinary odor with IEM
2.   ?    HPS infant appears clinically well
3.   ?    Abnormal facies/morphology common in IEM

Which metabolic abnormality is NOT seen in children with pyloric stenosis?

1.   ?    Metabolic alkalosis
2.   ?    Increased urinary H+ concentration
3.   ?    Increased urinary bicarbonate
4.   ?    Mild hyperkalemia

What percent of infants with pyloric stenosis have jaundice?

1.   ?    Less than 5%
2.   ?    10%
3.   ?    15%

In the nonoperative treatment of pyloric stenosis, hypertrophy may resolve in 3 - 6 months: T or F?

1.   ?    True
2.   ?    False

What resuscitation fluid is used for pyloric stenosis in a child with good urinary output?

1.   ?    D5 3/4 NS + 20 meq KCl/L
2.   ?    D5 1/2 NS + 20 meq KCl/L
3.   ?    D5 1/4 NS + 20 meq KCl/L
4.   ?    LR + 20 meq KCl/L

What should be done if the duodenal mucosa is injured during pyloromyotomy?

1.   ?    Gastroduodenostomy
2.   ?    Close defect and muscle and do another pyloromyotomy at 45 degree rotation
3.   ?    Close defect, cover with omentum, and nothing further if pyloromyotomy not compromised

Incomplete pyloromyotomy is rare. When it occurs is usually due to incomplete separation of the muscle on which side?

1.   ?    Duodenal side
2.   ?    Gastric side

What is the management of the unrecognized duodenal perforation after pyloromyotomy?

1.   ?    Gastroduodenostomy
2.   ?    Graham patch + vagotomy
3.   ?    Close defect, cover with omentum, and nothing further