A nurse is discussing the possible physical effects of alcohol withdrawal with a newly licensed nurse.
Which of the following effects should the nurse include? (Select all that apply.)
Seizures
Nystagmus
Tremors
Hallucinations
Correct Answer : A,C,D
Choice A rationale:
Seizures are a potentially serious complication of alcohol withdrawal. They occur due to the sudden decrease in GABA (gamma-aminobutyric acid), a neurotransmitter that has inhibitory effects on the central nervous system. Chronic alcohol consumption leads to an upregulation of GABA receptors in the brain to compensate for the depressant effects of alcohol. When alcohol is abruptly withdrawn, the brain is left in a hyperexcitable state, as there is less GABA to suppress neuronal activity. This hyperexcitability can manifest as seizures.
Mechanism of seizures in alcohol withdrawal:
Neuroadaptation: Chronic alcohol exposure leads to adaptations in neuronal excitability to counteract the depressant effects of alcohol. These adaptations include:
Upregulation of GABA receptors: The brain increases the number of GABA receptors to enhance the inhibitory effects of GABA.
Downregulation of glutamate receptors: The brain decreases the number of glutamate receptors to reduce the excitatory effects of glutamate.
GABA rebound: When alcohol is abruptly withdrawn, the upregulated GABA receptors become hypersensitive, leading to an excessive inhibitory response. This is known as GABA rebound.
Glutamate rebound: Concurrently, the downregulated glutamate receptors become more sensitive, leading to an enhanced excitatory response. This is known as glutamate rebound.
Imbalance: The combination of GABA rebound (excessive inhibition) and glutamate rebound (excessive excitation) creates a state of neuronal hyperexcitability, which can trigger seizures.
Risk factors for seizures in alcohol withdrawal:
Severity of alcohol dependence: Individuals with a long history of heavy alcohol consumption are at higher risk.
Previous alcohol withdrawal seizures: A history of seizures during past withdrawal episodes increases the likelihood of recurrence.
Comorbid medical conditions: Certain medical conditions, such as electrolyte imbalances, head injuries, or infections, can increase the risk of seizures.
Concurrent medication use: Certain medications, such as benzodiazepines or barbiturates, can lower the seizure threshold.
Management of seizures in alcohol withdrawal:
Benzodiazepines: Benzodiazepines are the mainstay of treatment for alcohol withdrawal seizures. They enhance the effects of GABA, helping to suppress neuronal excitability and prevent seizures.
Anticonvulsants: In some cases, anticonvulsants, such as gabapentin or valproate, may be used in addition to benzodiazepines.
Electrolyte replacement: Electrolyte imbalances, such as hyponatremia or hypomagnesemia, can contribute to seizures and should be corrected.
Monitoring: Close monitoring of vital signs, neurological status, and seizure activity is essential to ensure prompt intervention if seizures occur.
Choice B rationale:
Nystagmus, or involuntary eye movements, is not a common symptom of alcohol withdrawal. While it can occur in some cases, it is not considered a primary feature of the syndrome.
Choice C rationale:
Tremors are a very common symptom of alcohol withdrawal. They are caused by the same underlying mechanism as seizures, namely, the hyperexcitability of the central nervous system due to decreased GABA activity. Tremors typically manifest as shaking hands, arms, or legs, and can range in severity from mild to severe.
Choice D rationale:
Hallucinations, both auditory and visual, can occur in alcohol withdrawal. They are thought to be due to a combination of factors, including the hyperexcitability of the central nervous system, disruptions in neurotransmitter systems, and sleep deprivation. Hallucinations can be very distressing and can lead to agitation, confusion, and disorientation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
- Answer and explanation The correct answers are:
Condition:
- Mania Actions:
- Daily weight
D. Suicidal behavior
Parameters to monitor:
Blood pressure and pulse rate
Food intake during meals
Rationale for condition:
Choice A: Mania
The client's presentation is consistent with the manic phase of bipolar disorder.
Key features of mania include:
Elevated mood or irritability
Increased energy and activity levels
Racing thoughts and rapid speech
Decreased need for sleep Impulsive behavior
Distractibility
Poor judgment
Grandiosity
Auditory hallucinations Rationale for actions:
Choice B: Daily weight
Weight loss is a common symptom of mania due to increased activity levels and decreased appetite.
Monitoring weight helps assess the severity of mania and the need for nutritional interventions.
Choice D: Suicidal behavior
Individuals with bipolar disorder are at increased risk for suicide, especially during manic episodes.
Close monitoring for suicidal ideation and behavior is crucial for safety.
Rationale for parameters to monitor:
Choice A: Blood pressure and pulse rate
Mania can lead to physiological changes such as increased heart rate and blood pressure.
Monitoring these vital signs helps assess the physical impact of mania and the potential need for medical interventions.
Choice C: Food intake during meals
As mentioned, decreased appetite is common in mania.
Monitoring food intake ensures adequate nutrition and prevents dehydration.
Correct Answer is A
Explanation
Choice A rationale:
Pseudoparkinsonism is an extrapyramidal side effect (EPSE) of antipsychotic medications, particularly first-generation antipsychotics (FGAs) like haloperidol, that closely resembles the symptoms of Parkinson's disease. It's characterized by:
Stooped posture: A forward-leaning posture, often with rounded shoulders and a head that is bent forward.
Shuffling gait: Small, slow steps with reduced arm swing, often described as a "shuffling" or "dragging" walk.
Rigidity: Increased muscle stiffness throughout the body, leading to resistance to movement and a feeling of tightness.
Bradykinesia: Slowness of movement, both in initiating and completing actions.
Tremor: Involuntary shaking, often most noticeable in the hands, but can also affect the arms, legs, head, or jaw.
Masked facies: A decreased facial expression, often described as a "flat" or "expressionless" face.
Mechanism of pseudoparkinsonism:
Haloperidol primarily blocks dopamine D2 receptors in the nigrostriatal pathway of the brain.
Dopamine plays a crucial role in motor control, and its blockade in this pathway leads to a disruption in the balance of dopamine and acetylcholine, another neurotransmitter involved in movement.
This imbalance results in the characteristic symptoms of pseudoparkinsonism.
Risk factors for pseudoparkinsonism:
Older age
Female sex
Higher doses of antipsychotic medication
Prolonged use of antipsychotic medication
History of Parkinson's disease or other movement disorders
Presence of other EPSEs
Management of pseudoparkinsonism:
Dose reduction: If possible, the dose of the antipsychotic medication may be reduced.
Switching to a different antipsychotic: Some antipsychotics, such as second-generation antipsychotics (SGAs), have a lower risk of causing EPSEs.
Anticholinergic medications: These medications can help to counteract the effects of dopamine blockade on the acetylcholine system, but they can have their own side effects, such as dry mouth, constipation, and urinary retention.
Amantadine: This medication can also be used to treat pseudoparkinsonism, but it has the potential to cause side effects such as insomnia, anxiety, and livedo reticularis (a mottled skin rash).
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