CMN 568 Unit 4|185 Exam Study Questions And Answers|100 % Correct

When does malrotation occur? - ️️at about the 10th week of gestation What is a malrotation? - ️️a congenital abnormality that occurs during the embryonic phase of development when the midgut retracts into the abdominal cavity. The midgut rotates counterclockwise When do infants typically become symptomatic with a malrotation? - ️️at 3 weeks of life What is the classic sign of a malrotation? - ️️bilious vomitting How is a malrotation diagnosed? - ️️upper GI study What are some radiologic findings that are indicative of a malrotation? - ️️corkscrew appearance with barium swallow; Signs of obstruction (air-fluid levels) may be present, along with an abnormal gas pattern at the stomach and duodenum. What is pyloric stenosis? - ️️results from hypertrophy of the pyloric sphincter (muscle in the distal stomach), which leads to poor gastric emptying into the duodenum. When does pyloric stenosis usually present? - ️️At 2-4 weeks of age What are the symptoms of pyloric stenosis? - ️️vomiting that becomes projectile; typically occurs immediately after feeding, is nonbilious, and the infant is hungry after vomiting. The parents may also report constipation, excessive crying and weight loss, or failure to gain weight