A nurse is checking a school-age child for pediculosis capitis. Which of the following findings is a definitive indication of this condition?

A. Left side: Placing the infant on the left side after feeding is not typically recommended for managing gastroesophageal reflux. This position may not provide optimal support for digestion and may not effectively reduce reflux symptoms.

B. Upright: This is the correct answer. Placing the infant in an upright position after feeding can help reduce gastroesophageal reflux. Gravity helps keep stomach contents down, preventing them from flowing back up into the esophagus. Holding the infant upright on the caregiver's shoulder or in a baby carrier can be effective in minimizing reflux symptoms.

C. Right side: Placing the infant on the right side after feeding is not typically recommended for managing gastroesophageal reflux. Similar to the left side, this position may not provide optimal support for digestion and may not effectively reduce reflux symptoms.

D. Prone: Placing the infant in a prone (face-down) position after feeding is not recommended due to the risk of sudden infant death syndrome (SIDS). Prone positioning is associated with an increased risk of SIDS, and current guidelines advise against placing infants to sleep or rest on their stomachs. Additionally, a prone position may not effectively reduce gastroesophageal reflux and may pose other risks to the infant's health and safety.

A. Abdominal wall defect:

Failure to pass meconium within the first 24 hours after birth can indicate a potential obstruction in the gastrointestinal tract. While an abdominal wall defect could potentially cause gastrointestinal issues, it is not specifically associated with failure to pass meconium.

B. Celiac disease:

Celiac disease is an autoimmune disorder characterized by an abnormal immune response to gluten. While celiac disease can cause gastrointestinal symptoms, such as diarrhea and abdominal pain, it is not typically associated with failure to pass meconium in the newborn period.

C. Intussusception:

Intussusception occurs when one segment of the intestine telescopes into another, causing a bowel obstruction. While intussusception is a cause of bowel obstruction in infants, it typically presents with symptoms such as colicky abdominal pain, vomiting, and the passage of "currant jelly" stool, rather than failure to pass meconium.

D. Hirschsprung disease:

Hirschsprung disease is a congenital condition characterized by the absence of ganglion cells in the distal portion of the colon, leading to functional obstruction. Failure to pass meconium within the first 24 hours after birth is a classic sign of Hirschsprung disease. This condition requires surgical intervention to remove the affected portion of the colon and restore normal bowel function.