The nurse is taking care of a client diagnosed with advanced liver disease with hepatic encephalopathy. Lactulose (Cephulac) is administered to the patient to reduce which of the following?
Dysarthria
Muscle rigidity
Seizures
Drooling at times
Mask-like facial expression
Shuffled gait
Stooped posture
The Correct Answer is A
Choice A: Ammonia
Lactulose is administered to patients with hepatic encephalopathy to reduce the levels of ammonia in the blood. Hepatic encephalopathy occurs due to the liver’s inability to detoxify ammonia, a byproduct of protein metabolism. Lactulose works by converting ammonia into ammonium, which is then excreted in the stool. This helps to lower blood ammonia levels and alleviate the symptoms of hepatic encephalopathy.
Choice B: Dysarthria
Dysarthria, or difficulty in articulating words, is a common symptom of Parkinson’s disease. It results from the muscle rigidity and bradykinesia (slowness of movement) that affect the muscles involved in speech. Patients with Parkinson’s often have a soft, monotone voice and may struggle with the clarity of their speech.
Choice C: Muscle Rigidity
Muscle rigidity is one of the hallmark symptoms of Parkinson’s disease. It refers to the stiffness and inflexibility of the muscles, which can affect any part of the body. This rigidity can lead to discomfort and pain, and it contributes to the characteristic stooped posture and shuffling gait seen in Parkinson’s patients.
Choice D: Seizures
Seizures are not typically associated with Parkinson’s disease. While Parkinson’s affects the central nervous system, it primarily impacts motor function rather than causing seizure activity. Therefore, this is not a common finding in Parkinson’s patients.
Choice E: Drooling at Times
Drooling, or sialorrhea, is a common symptom in Parkinson’s disease. It occurs due to the decreased ability to swallow saliva, which can result from muscle rigidity and bradykinesia affecting the muscles involved in swallowing. This can be particularly bothersome for patients and may require management strategies.
Choice F: Mask-like Facial Expression
A mask-like facial expression, also known as hypomimia, is a common feature of Parkinson’s disease. It results from the rigidity and bradykinesia affecting the facial muscles, leading to reduced facial expressions and a fixed, staring appearance.
Choice G: Shuffled Gait
A shuffled gait is a characteristic feature of Parkinson’s disease. Patients often take small, shuffling steps and may have difficulty initiating movement. This gait pattern is due to the combination of muscle rigidity, bradykinesia, and postural instability.
Choice H: Stooped Posture
Stooped posture is another common symptom of Parkinson’s disease. It results from the muscle rigidity and postural instability that affect the patient’s ability to maintain an upright position. This can lead to a forward-leaning posture and balance issues.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A: Metformin
Reason: Metformin is known to interact with contrast material, particularly iodinated contrast media, and can increase the risk of acute kidney injury (AKI). This interaction can lead to a condition known as contrast-induced nephropathy (CIN) or contrast-induced acute kidney injury (CI-AKI). Metformin is primarily excreted by the kidneys, and impaired renal function can lead to its accumulation, increasing the risk of lactic acidosis, a rare but serious complication. Therefore, it is generally recommended to withhold metformin before and after the administration of contrast media until renal function is confirmed to be normal.

Choice B: Carvedilol
Reason: Carvedilol is a beta-blocker used to treat high blood pressure and heart failure. It does not have a known interaction with contrast media that would increase the risk of acute kidney injury. Carvedilol primarily affects the cardiovascular system and does not significantly impact renal function or interact with contrast agents.
Choice C: Nitroglycerin
Reason: Nitroglycerin is used to treat angina and other heart conditions by dilating blood vessels. It does not interact with contrast media in a way that would increase the risk of acute kidney injury. Nitroglycerin’s primary effects are on the cardiovascular system, and it does not have nephrotoxic properties.
Choice D: Atorvastatin
Reason: Atorvastatin is a statin used to lower cholesterol levels. While it can have effects on liver enzymes and muscle tissue, it does not interact with contrast media to increase the risk of acute kidney injury. Atorvastatin is metabolized by the liver and does not significantly impact renal function.
Correct Answer is D
Explanation
Choice A Reason:
Malfunction of the alarm button is unlikely to be the cause of increased peak airway pressure. The alarm is designed to alert the nurse to a problem with the ventilator or the patient’s airway, not to malfunction itself. Therefore, this is not the first thing the nurse should assess.
Choice B Reason:
A cut or slice in the tubing from the ventilator could cause a loss of pressure or air leak, but it would not typically result in increased peak airway pressure. Instead, it would likely cause a decrease in pressure and potentially trigger a different alarm.
Choice C Reason:
Higher than normal endotracheal cuff pressure can contribute to increased peak airway pressure. However, it is not the most immediate concern compared to a kink in the tubing, which can completely obstruct airflow and rapidly compromise the patient’s ventilation.
Choice D Reason:
A kink in the ventilator tubing is a common and immediate cause of increased peak airway pressure. It obstructs the flow of air, leading to a buildup of pressure in the system. This is the first thing the nurse should assess and correct to ensure the patient is receiving adequate ventilation.

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