A nurse is preparing to administer a dose of lactulose to a client who has cirrhosis. The client states, "I don't need this medication. I am not constipated." The nurse should explain that in clients who have cirrhosis, lactulose is used to decrease levels of which of the following components in the bloodstream?
Potassium
Ammonia
Bicarbonate
Glucose
The Correct Answer is B
Choice A rationale
Potassium levels are not directly affected by lactulose. While cirrhosis can lead to imbalances in electrolytes, including potassium, lactulose is not used to manage potassium levels in the bloodstream.
Choice B rationale
Ammonia is produced by the breakdown of proteins in the intestines and is normally processed by the liver. In cirrhosis, the liver's ability to convert ammonia to urea is impaired, leading to increased levels in the blood. Lactulose helps reduce blood ammonia levels by converting it into ammonium, which is then excreted.
Choice C rationale
Bicarbonate levels are related to the body's pH balance and are not the target of lactulose treatment. Cirrhosis does not typically result in bicarbonate imbalances that would be treated with lactulose.
Choice D rationale
Glucose levels are managed by insulin and other metabolic processes, not lactulose. While cirrhosis can affect overall metabolism, lactulose does not have a direct effect on blood glucose levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
Choice A rationale
While family history can contribute to the risk of developing certain conditions, it is not a direct risk factor for peptic ulcer disease.
Choice B rationale
A long-term smoking history is a known risk factor for peptic ulcer disease as it can increase gastric acid secretion and reduce the production of substances that protect the stomach lining.
Choice C rationale
The client denies alcohol use; therefore, it is not a contributing risk factor in this case. However, alcohol use is generally a risk factor for PUD due to its irritating effect on the stomach lining.
Choice D rationale
Being positive for Helicobacter pylori is one of the strongest risk factors for peptic ulcer disease. This bacterium damages the protective mucosal layer of the stomach and duodenum, leading to chronic inflammation and allowing acid to injure the underlying tissue. It is the leading cause of most gastric and duodenal ulcers worldwide.
Choice E rationale
NSAID use is a well-established risk factor for peptic ulcer disease as these medications can disrupt the protective lining of the stomach, leading to ulcers.
Correct Answer is D
Explanation
Choice A rationale
Palpating over the maxillary sinuses is not typically associated with oral cancer assessment. This action is more relevant to sinus issues and does not provide information about oral cancer.
Choice B rationale
Asking about a productive cough can be relevant in assessing respiratory conditions but is not a direct method for evaluating oral cancer. Oral cancer symptoms are more localized to the mouth area.
Choice C rationale
Observing for purulent nasal drainage is not a standard action in assessing for oral cancer. Nasal drainage would be more indicative of sinus or respiratory issues, not oral pathology.
Choice D rationale
Checking the mouth for leukoplakia is a key action when assessing for oral cancer. Leukoplakia presents as thickened, white patches inside the mouth and can be precancerous, making it a critical observation in potential oral cancer cases.
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