The nurse is caring for a client diagnosed with chronic hepatitis who is receiving the medication lactulose. Which of these laboratory results would indicate the medication is achieving the desired therapeutic effect?
Increased serum albumin
Decreased serum bilirubin
Decreased serum ammonia
Decreased serum alanine aminotransferase (ALT)
The Correct Answer is C
Choice A Reason: Increased Serum Albumin
Increased serum albumin is not a direct indicator of the therapeutic effect of lactulose in patients with chronic hepatitis. Albumin is a protein made by the liver, and its levels can be affected by liver function. However, lactulose primarily works by reducing ammonia levels in the blood, not by increasing albumin levels. Normal serum albumin levels range from 3.5 to 5.5 grams per deciliter (g/dL). While improved liver function might eventually lead to increased albumin levels, this is not the primary therapeutic effect of lactulose.
Choice B Reason: Decreased Serum Bilirubin
Decreased serum bilirubin is also not a direct indicator of lactulose’s therapeutic effect. Bilirubin is a byproduct of the normal breakdown of red blood cells and is processed by the liver. Elevated bilirubin levels can indicate liver dysfunction, but lactulose’s main role is to reduce ammonia levels, not bilirubin. Normal serum bilirubin levels are typically between 0.1 to 1.2 milligrams per deciliter (mg/dL). While improved liver function might reduce bilirubin levels, this is not the primary goal of lactulose therapy.
Choice C Reason: Decreased Serum Ammonia
Decreased serum ammonia is the correct indicator of the therapeutic effect of lactulose in patients with chronic hepatitis. Lactulose is used to treat hepatic encephalopathy, a condition caused by high levels of ammonia in the blood due to liver dysfunction. Lactulose works by converting ammonia into ammonium, which is then excreted from the body. Normal serum ammonia levels are less than 50 micromoles per liter (µmol/L) in adults56. A decrease in serum ammonia levels indicates that lactulose is effectively reducing the toxic levels of ammonia in the blood, thereby achieving its desired therapeutic effect.
Choice D Reason: Decreased Serum Alanine Aminotransferase (ALT)
Decreased serum alanine aminotransferase (ALT) is not a direct indicator of lactulose’s therapeutic effect. ALT is an enzyme found in the liver that helps convert proteins into energy for liver cells. Elevated ALT levels can indicate liver damage. Normal ALT levels range from 7 to 56 units per liter (U/L). While improved liver function might reduce ALT levels, lactulose’s primary role is to reduce ammonia levels, not directly affect ALT.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D","E"]
Explanation
Choice A Reason:
Provide continued sedation.
Providing continued sedation is not typically necessary after a cardioversion. The sedation used during the procedure is usually short-acting, and the client should begin to wake up shortly after the procedure is completed. Continuous sedation is not required unless there are specific medical reasons, which should be determined by the healthcare provider.
Choice B Reason:
Remove crash cart from the room.
The crash cart should remain in the room until the client is fully stable. Removing it immediately after the procedure is not advisable because the client may still be at risk for complications such as arrhythmias or other cardiac events. Keeping the crash cart nearby ensures that emergency equipment is readily available if needed.
Choice C Reason:
Assess the chest for burns.
Assessing the chest for burns is an important nursing action following a cardioversion. The electrical shock delivered during the procedure can cause burns on the skin where the electrodes were placed. It is essential to check for any signs of burns or skin irritation and provide appropriate care if needed.
Choice D Reason:
Ensure electrodes are in place for continued monitoring.
Ensuring that the electrodes are in place for continued monitoring is crucial. Continuous cardiac monitoring is necessary to observe the client’s heart rhythm and detect any potential complications or recurrence of arrhythmias. Proper placement and function of the electrodes are essential for accurate monitoring.
Choice E Reason:
Document results of the procedure.
Documenting the results of the procedure is a critical nursing action. Accurate documentation includes noting the client’s response to the cardioversion, any complications, and the current heart rhythm. This information is vital for ongoing care and communication with the healthcare team.
Correct Answer is A
Explanation
Choice A: He is NPO until the speech-language pathologist performs a swallowing evaluation.
When a client is admitted with a stroke, especially one affecting the left side, there is a significant risk of dysphagia, or difficulty swallowing. This can lead to choking and aspiration, which can cause pneumonia and other complications. Therefore, it is crucial to keep the client NPO (nothing by mouth) until a speech-language pathologist can perform a thorough swallowing evaluation. This ensures that the client can safely swallow without the risk of aspiration. The speech-language pathologist will assess the client’s ability to swallow different textures and consistencies of food and liquids and provide recommendations for safe feeding.
Choice B: Be sure to sit him up when you are feeding him to make him feel more natural.
While sitting the client up during feeding is a good practice to reduce the risk of aspiration, it is not sufficient on its own for a client who has just had a stroke. Without a proper swallowing evaluation, feeding the client could still pose a significant risk. Therefore, this choice is not the most appropriate response.
Choice C: You may give him a full-liquid diet, but please avoid solid foods until he gets stronger.
A full-liquid diet might seem like a safer option, but it still poses a risk of aspiration if the client has dysphagia. Without a swallowing evaluation, it is not safe to assume that the client can handle even a full-liquid diet. Therefore, this choice is not appropriate.
Choice D: Just be sure to add some thickener in his liquids to prevent choking and aspiration.
Adding thickener to liquids can help some clients with dysphagia, but it is not a one-size-fits-all solution. The appropriate consistency of liquids should be determined by a speech-language pathologist after a swallowing evaluation. Therefore, this choice is not appropriate without a prior assessment.
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