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
Explanation
Choice A rationale
An increasing hemoglobin level does not indicate the resolution of acute pancreatitis. Hemoglobin levels can fluctuate due to various factors, including hydration status and blood loss, but are not directly related to the resolution of pancreatitis.
Choice B rationale
During an episode of acute pancreatitis, serum concentrations of amylase and lipase rise significantly, often within hours of pancreatic injury. These elevated enzyme levels are key components in diagnosing the condition. As the inflammation subsides and the pancreas begins to heal, the levels of these enzymes typically decrease, returning to normal ranges. Therefore, a declining serum amylase level suggests that the acute inflammatory process is resolving.
Choice C rationale
Serum bilirubin levels are indicative of liver function and bile metabolism. Elevated bilirubin may occur if pancreatitis leads to bile duct obstruction or liver involvement. However, a decrease in bilirubin levels addresses biliary system recovery rather than directly reflecting pancreatic inflammation resolution.
Choice D rationale
An increasing serum alkaline phosphatase level is generally associated with bile duct obstruction or bone disease and does not indicate the resolution of acute pancreatitis. This enzyme is found in several tissues throughout the body, including the liver and bones.
Correct Answer is B
Explanation
Choice A rationale
A history of high blood pressure is a risk factor for chronic kidney disease but not specifically for acute glomerulonephritis. Acute glomerulonephritis is more commonly associated with infections.
Choice B rationale
A recent sore throat and fever, especially if caused by a streptococcal infection, can lead to post-streptococcal glomerulonephritis. This is a well-documented cause of acute glomerulonephritis, making it the correct answer.
Choice C rationale
While bladder infections can lead to urinary tract infections, they are not typically associated with acute glomerulonephritis. This condition is more commonly related to infections that can cause a systemic immune response.
Choice D rationale
A history of kidney stones is associated with chronic kidney issues and can lead to infections, but it is not a direct cause of acute glomerulonephritis. This condition is usually caused by an immune response to an infection elsewhere in the body.
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