Which of the following are not functions of the gastrointestinal tract?
Provision of oxygen to the organs
Elimination of waste
Digestion of food
Remove water-soluble waste
The Correct Answer is A
Choice A reason: The gastrointestinal tract does not provide oxygen to organs; this is the respiratory and circulatory systems’ role, delivering oxygen via lungs and blood. The GI tract focuses on digestion, absorption, and waste elimination, making this function unrelated to its physiological responsibilities.
Choice B reason: Elimination of waste is a core gastrointestinal function, achieved through defecation. The large intestine compacts waste into feces, expelling it via the rectum, a critical process for removing indigestible material and toxins, making this a valid GI tract function.
Choice C reason: Digestion of food is a primary gastrointestinal function, involving mechanical and chemical breakdown in the stomach and small intestine. Enzymes and acids process nutrients for absorption, a fundamental GI role, making this choice a correct description of its physiological tasks.
Choice D reason: Removing water-soluble waste is a gastrointestinal function, as the colon reabsorbs water, concentrating waste for elimination. This process ensures efficient waste management, distinguishing it from renal functions, making this a valid role of the GI tract in waste handling.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Rebound tenderness in the right lower quadrant, often at McBurney’s point, is a hallmark of appendicitis, indicating peritoneal irritation from an inflamed appendix. This sign, elicited by releasing pressure during palpation, suggests localized inflammation, requiring urgent surgical evaluation to prevent rupture and peritonitis.
Choice B reason: Pancreatitis typically presents with epigastric or left upper quadrant pain, radiating to the back, not right lower quadrant rebound tenderness. It involves pancreatic inflammation, often due to gallstones or alcohol, and is assessed via serum amylase and lipase, not RLQ findings, making this incorrect.
Choice C reason: Cholecystitis causes right upper quadrant pain and tenderness, often with Murphy’s sign, due to gallbladder inflammation. Rebound tenderness in the right lower quadrant is not characteristic, as cholecystitis affects the upper abdomen, making this choice misaligned with the clinical finding.
Choice D reason: Diverticulitis typically causes left lower quadrant pain, as diverticula are common in the sigmoid colon. Right lower quadrant rebound tenderness is not a typical finding, as it suggests appendicitis instead, making this choice incorrect for the described gastrointestinal assessment finding.
Correct Answer is C
Explanation
Choice A reason: Asking about the time assesses temporal orientation, a component of cognitive function, but is less comprehensive than date recall. Time awareness can vary due to environmental factors or confusion, making it less reliable for evaluating overall orientation in older adults, who may have memory deficits.
Choice B reason: Asking if the patient can stand up tests physical ability, not cognitive orientation. Orientation assessment focuses on awareness of time, place, and person, critical for detecting delirium or dementia. Physical tests are irrelevant to mental status evaluation, making this an inappropriate question.
Choice C reason: Asking for the date evaluates orientation to time, a key component of cognitive assessment in older adults. It tests memory and awareness, crucial for detecting cognitive impairments like dementia. This question is specific, measurable, and aligns with standard mental status examinations, making it the most appropriate.
Choice D reason: Asking about feelings assesses emotional state, not orientation. While relevant for overall health, it does not evaluate cognitive awareness of time, place, or person. Orientation questions target memory and perception, critical for neurological assessment, rendering this choice less relevant for the task.
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