A nurse is caring for a patient with cirrhosis secondary to heavy alcohol use. The nurse's most recent assessment reveals subtle changes in the patient's cognition and behavior.
What is the nurse's most appropriate response?
Ensure that the patient's sodium intake does not exceed recommended levels.
Implement interventions aimed at ensuring a calm and therapeutic care environment.
Inform the primary care provider that the patient should be assessed for alcoholic hepatitis.
Report this finding to the primary care provider due to the possibility of hepatic encephalopathy.
The Correct Answer is D
Choice A rationale
Restricting sodium intake to less than 2000 mg per day is a standard intervention for managing ascites and fluid volume overload in patients with cirrhosis. However, sodium restriction does not directly address or treat the cognitive and behavioral changes associated with worsening liver function. While important for overall fluid management, this action is secondary to the urgent need to evaluate the patient for neurotoxic accumulations affecting brain function and mental status.
Choice B rationale
Providing a calm and therapeutic environment is a supportive nursing intervention that can help reduce patient agitation. However, in the context of cirrhosis, behavioral changes are likely physiological rather than purely environmental. Failing to report these changes to a provider in favor of only modifying the environment ignores the underlying medical emergency of rising ammonia levels. Scientific management must prioritize the physiological cause of the altered mentation over simple environmental modifications.
Choice C rationale
Alcoholic hepatitis is an acute inflammatory condition of the liver caused by heavy alcohol consumption, often presenting with jaundice, fever, and liver tenderness. While this patient has a history of alcohol use, the specific new onset of cognitive and behavioral changes is more characteristic of hepatic encephalopathy than a new flare of hepatitis. Reporting for a hepatitis assessment is less precise and less urgent than reporting for a life-threatening neuropsychiatric complication.
Choice D rationale
Hepatic encephalopathy is a reversible neuropsychiatric syndrome caused by liver failure and the accumulation of neurotoxins, primarily ammonia, in the blood. Ammonia levels normally range from 15 to 45 units/dL, but in cirrhosis, the liver cannot convert it to urea. This leads to cerebral edema and altered neurotransmission, manifesting as subtle confusion or irritability. Reporting these signs immediately is essential so that treatments like lactulose can be initiated to lower toxic levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Synchronized intermittent mandatory ventilation provides a set number of breaths but allows the patient to breathe spontaneously in between. When the patient's spontaneous rate drops to zero due to morphine, they are only receiving the 4 breaths programmed on the ventilator. This is insufficient for adequate gas exchange, as a normal respiratory rate is 12 to 20 breaths/min. Increasing the SIMV rate ensures the patient receives a safe minimum number of breaths to maintain ventilation.
Choice B rationale
Changing to assist/control ventilation at a rate of 4 breaths/min would not solve the problem of hypoventilation. In assist/control, every breath is delivered at the full set tidal volume, but a rate of 4 is still too low to maintain an adequate minute volume for an adult. To ensure safety after respiratory depression from medication, the mandatory rate must be set high enough to provide necessary alveolar ventilation, usually at least 10 to 12 breaths/min.
Choice C rationale
Pressure support is a setting used to assist spontaneous breaths by providing a boost of pressure during inspiration to overcome the resistance of the ventilator tubing. Since the patient has stopped taking spontaneous breaths due to the effects of morphine, adding pressure support will have no effect. Pressure support requires a patient-initiated breath to trigger the ventilator, so it cannot compensate for a lack of respiratory drive caused by opioid-induced central nervous system depression.
Choice D rationale
Positive end-expiratory pressure is used to keep alveoli open at the end of expiration to improve oxygenation and increase functional residual capacity. While PEEP is helpful for oxygenation issues, the primary problem here is a lack of ventilation or the physical movement of air. Adding PEEP does not increase the respiratory rate or the minute volume, which is the immediate requirement for a patient whose spontaneous breathing has been suppressed by a dose of morphine.
Correct Answer is B
Explanation
Choice A rationale
A junctional escape rhythm typically originates from the AV junction when the SA node fails. It is characterized by a regular rhythm with a rate of 40 to 60 beats per minute. P waves are often absent, inverted, or follow the QRS complex. This does not match a third-degree block where P waves and QRS complexes occur independently. The clinical presentation of dizziness and shortness of breath often accompanies the low cardiac output seen in blocks.
Choice B rationale
Third-degree AV block, or complete heart block, is characterized by a total dissociation between the atria and ventricles. On an ECG, P waves occur at a regular internal, and QRS complexes occur at a separate regular interval, but there is no relationship between them (no constant PR interval). This leads to severe hemodynamic instability because the ventricular rate is usually very slow (20 to 40 beats per minute), causing symptoms like dizziness and dyspnea.
Choice C rationale
Sinus rhythm with premature atrial contractions (PACs) involves an underlying regular sinus rhythm where an irritable atrial focus fires early. This results in a premature P wave that often looks different from the sinus P wave, followed by a QRS. While PACs can cause a feeling of palpitations, they do not typically cause the sustained dizziness and shortness of breath associated with the profound bradycardia found in a complete, third-degree atrioventricular block.
Choice D rationale
Sinus rhythm with premature ventricular contractions (PVCs) consists of an underlying sinus rhythm interrupted by wide, bizarre QRS complexes that occur early and are not preceded by a P wave. While frequent PVCs can reduce cardiac output, the description of sustained symptoms over several days combined with the interpretation of a "heart block" tracing suggests a more permanent conduction failure rather than intermittent ectopy within an otherwise normal sinus rhythm.
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