Which of the following is a rationale for prescribing total parenteral nutrition (TPN) for a patient with inflammatory bowel disease (IBD)?
To provide essential nutrients while allowing the bowel to rest and heal.
To reduce inflammation and control symptoms of IBD.
To stimulate the bowel and promote regular bowel movements.
To prevent malnutrition and promote weight gain.
The Correct Answer is A
Choice A rationale
Total parenteral nutrition (TPN) provides essential nutrients intravenously, allowing the bowel to rest and heal, which is important in the management of inflammatory bowel disease (IBD).
Choice B rationale
While reducing inflammation and controlling symptoms are important goals in IBD management, TPN is primarily used to provide nutrition and allow the bowel to rest.
Choice C rationale
Stimulating the bowel is not the purpose of TPN. TPN is used to give the digestive tract a break while ensuring the patient receives necessary nutrients.
Choice D rationale
Preventing malnutrition and promoting weight gain are secondary benefits of TPN, but the primary rationale is to provide nutrients while allowing the bowel to rest and heal.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Administering a laxative is not necessary for a CT scan of the abdomen with contrast. Laxatives are typically used for bowel preparation for procedures like colonoscopies.
Choice B rationale
Biguanide medications such as metformin should be held before and after the administration of contrast medium to prevent lactic acidosis, particularly in clients with liver disease.
Choice C rationale
Fasting for 24 hours is not required before a CT scan with contrast medium. Typically, clients are asked to fast for a few hours prior to the procedure.
Choice D rationale
Ensuring the client is adequately hydrated helps to protect kidney function and reduce the risk of contrast-induced nephropathy. Hydration is especially important for clients with a history of liver disease.
Correct Answer is A
Explanation
Choice A rationale
The oral mucosa is the most reliable indicator of central cyanosis because it reflects the oxygenation of central tissues. When there is a lack of oxygen in the bloodstream, the lips and mucous membranes, such as the oral mucosa, appear blue or cyanotic. This is a clear sign that the central tissues are not receiving adequate oxygenation.
Choice B rationale
The sclera of the eye is not a reliable indicator of central cyanosis. The sclera is white and does not change color due to oxygen levels. Instead, it may become yellow in jaundice or red in inflammation but does not reflect central cyanosis.
Choice C rationale
The ear lobes are peripheral areas and do not reliably indicate central cyanosis. Peripheral cyanosis can occur due to local blood flow issues, and ear lobes can appear blue in cold conditions even when central oxygenation is normal.
Choice D rationale
The soles of the feet, similar to the ear lobes, are peripheral areas and not reliable indicators of central cyanosis. Cyanosis in the feet can result from poor peripheral circulation rather than central hypoxia.
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