The nurse caring for a 22-pound 1-year-old child who has had open heart surgery is aware that the minimum acceptable urine output for the child

A.Pyloric stenosis is a condition where there's narrowing of the opening between the stomach and the small intestine. It is not related to inadequate motility of the intestine.

B.Enterocolitis refers to inflammation of the small intestine and colon. While this can cause obstruction in some cases, it's not the primary cause of inadequate motility as seen in the question.

C.Encopresis is the voluntary or involuntary passage of feces outside the toilet in children who should be toilet trained. It is not a cause of mechanical intestinal obstruction.

D. Hirschsprung's disease is a congenital disorder where there is inadequate motility in part of the intestine, leading to mechanical obstruction. It usually affects the colon and is due to the absence of ganglion cells in the affected segment of the bowel.

So, Hirschsprung's disease is the specific condition that leads to inadequate motility and mechanical obstruction of part of the intestine in infants.

A. Thrombocytopenia: Thrombocytopenia is a condition characterized by a low platelet count, and it is not a typical feature of iron-deficiency anemia.

B. Increased Total Iron-binding Capacity: In iron-deficiency anemia, the Total Iron-binding Capacity (TIBC) is typically increased as the body attempts to compensate for the low iron levels by increasing its capacity to bind and transport iron.

C. Decreased Folate Levels: While iron-deficiency anemia and folate-deficiency anemia are both forms of anemia, decreased folate levels are more characteristic of folate-deficiency anemia, which is a separate condition.

D. Microcytic Red Blood Cells.

Iron-deficiency anemia is characterized by a decrease in the body's iron stores, which in turn affects the production of hemoglobin and red blood cells. This results in the formation of microcytic (smaller than normal) red blood cells. These smaller red blood cells are a typical finding in iron-deficiency anemia.