A Newborn Boy Does Not Pass Meconium in the First

question 28

Multiple Choice

A newborn boy does not pass meconium in the first 24 hours. His abdomen is distended, and he begins vomiting. Various other tests lead to a diagnosis of Hirschsprung's disease. An obstruction is most likely to be found in which portion of the gut?

• A)Ascending colon
• B)Ileocecal sphincter
• C)Lower esophageal sphincter
• D)Pylorus
• E)Sigmoid colon

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Definitions:

Donor Organ

A healthy organ removed from one person's body (the donor) for the purpose of transplanting it into another person (the recipient) who needs it.

Plasma Cells

Cells that develop from B cells and produce large volumes of antibodies as part of the immune response.

NK Cells

A type of white blood cell known as Natural Killer cells that plays a crucial role in the body's immune response by attacking cancer and virally-infected cells.

Cytotoxic T Cells

An immune cell specialized in destroying cancer cells, cells infected primarily by viruses, or other types of damaged cells.