The parents of a child with acid-base imbalance ask the nurse about mechanisms that regulate acid-base balance. Which statement by the nurse accurately explains the mechanisms regulating acid-base balance in children?

The anatomy of the urinary tract can influence the susceptibility to urinary tract infections (UTIs). In the case of young girls, their urethra is shorter compared to adult females, which increases the likelihood of bacteria reaching the bladder. The shorter urethra provides a shorter distance for bacteria to travel from the outside of the body to the bladder, making it easier for bacteria to enter and cause an infection.

Prostatic secretions in males in (option A) is incorrect because they are not directly related to the increased susceptibility to UTIs. Prostatic secretions can, however, contribute to conditions like prostatitis, which is an inflammation of the prostate gland that can be associated with urinary symptoms and sometimes bacterial infections.

Frequent emptying of the bladder in (option C) is incorrect because it is generally considered a healthy practice as it helps to flush out any potential bacteria in the urinary tract. It does not predispose the urinary tract to infection.

Increased fluid intake in (option D) is incorrect because it is generally encouraged to maintain proper hydration and urinary tract health. It can help to flush out bacteria from the urinary system, reducing the risk of infection.

While these factors may have implications for urinary tract health, the specific factor that predisposes the urinary tract to infection, particularly in young girls, is the short urethra (B).

The assessment finding that the nurse should expect in an infant with Hirschsprung disease is option A, constipation with the passage of foul-smelling, ribbon-like stools. Hirschsprung disease is a congenital condition characterized by the absence of ganglion cells in the distal part of the colon, leading to functional obstruction. The affected segment of the colon lacks the normal peristaltic movements, resulting in an accumulation of faecal matter. The stools passed by infants with Hirschsprung disease are often constipated, and the narrow, ribbon- like appearance is a result of the narrowed segment of the colon.

diarrhea (option B) is incorrect because it, is not typically associated with Hirschsprung disease. Instead, the condition presents with constipation due to the obstructed bowel.

foul-smelling, fatty stools in (option C) is incorrect because it, is not characteristic of Hirschsprung disease. This finding may be associated with malabsorption disorders such as cystic fibrosis or celiac disease, but not specifically with Hirschsprung disease.

"currant jelly" stools in (option D) is incorrect because it, is a term commonly used to describe the stools seen in intussusception, which is a different condition involving the telescoping of one segment of the bowel into another. It is not an expected finding in Hirschsprung disease.