A nurse is caring for a patient who has been taking lorazepa… | 마이메르시 MyMerci
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Pharmacology
문제

A nurse is caring for a patient who has been taking lorazepam (Ativan) 2 mg three times daily for anxiety for the past 6 months. The patient wants to discontinue the medication. What is the most important nursing action?

해설
Long-term benzodiazepine use requires gradual tapering to prevent dangerous withdrawal symptoms like seizures. Collaborating with the provider for a tapering schedule is the priority action. Other options (abrupt stop, OTC switch, PRN use) are inappropriate and risky.
같은 주제 다음 문제A nurse is caring for a patient who has been taking lorazepam (Ativan) 2 mg twice daily fo…

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the critical nursing knowledge of safe medication discontinuation for benzodiazepines, specifically Lorazepam (Ativan). Benzodiazepines are central nervous system (CNS) depressants used for anxiety, insomnia, and sedation. With long-term use (6 months in this case), the body develops physical dependence. Abrupt cessation can trigger a severe, potentially life-threatening withdrawal syndrome due to rebound CNS hyperactivity.

Answer Rationale: Key Point! The most important nursing action is to collaborate with the healthcare provider to develop a gradual tapering schedule. This is the evidence-based, safe standard of care. Tapering allows the patient's GABA (gamma-aminobutyric acid) neurotransmitter system to readjust slowly, minimizing withdrawal symptoms and preventing complications like seizures, delirium, and heightened anxiety.

Distractor Analysis:
  • Option 1 (Advise immediate stop): This is dangerous and contraindicated. Abrupt discontinuation after long-term use poses a high risk for severe withdrawal, including seizures.
  • Option 3 (Switch to OTC sleep aid): This is inappropriate and does not address the underlying issue of benzodiazepine dependence. OTC aids (e.g., diphenhydramine) have different mechanisms and side effects and do not prevent benzodiazepine withdrawal.
  • Option 4 (Take only when anxious - PRN use): Watch out for confusion! While PRN (as needed) use can reduce dependency risk when starting therapy, it is not a safe method for discontinuing an established daily regimen. For a patient already on a scheduled dose for 6 months, suddenly switching to PRN creates an erratic blood level, which can precipitate withdrawal symptoms and is not a structured tapering plan.
Related Concepts: This scenario integrates principles of pharmacology (drug dependence and withdrawal), patient education and advocacy, and the nurse's collaborative role within the healthcare team. The nurse must act as a patient safety advocate by ensuring a medically supervised discontinuation process.

Concept Summary
ConceptDescriptionNursing Implication
Benzodiazepine WithdrawalSyndrome from abrupt cessation after physical dependence develops. Symptoms: anxiety, insomnia, tremors, sweating, palpitations, seizures.NEVER advise abrupt stop. Monitor for symptoms during taper.
Gradual TaperingSystematic, slow reduction of medication dose over time (weeks to months).Priority action. Requires collaboration with prescriber. Provides patient education on the schedule.
Physical DependenceAdaptation to a drug where abrupt discontinuation causes withdrawal. Different from addiction (psychological craving + compulsive use).Recognize risk with long-term CNS depressant use. Plan care accordingly.
Nurse's Role & ScopeNurses assess, educate, and advocate but do not independently change medication regimens.Collaborate with provider (MD/APRN) for prescription changes. Implement and monitor the tapering plan.

Side-by-Side Comparison!
Discontinuation MethodMechanism / RationaleRisk / OutcomeAppropriate Use
Abrupt CessationSudden removal of CNS depressant; causes rebound hyperactivity.High Risk: Seizures, delirium, anxiety rebound. Potentially fatal.Contraindicated for long-term benzodiazepine or alcohol use.
Gradual Tapering (Correct Answer)Slow dose reduction allows GABA receptors to gradually regain sensitivity.Minimized Risk: Mild, manageable withdrawal symptoms. Safe discontinuation.Standard for stopping long-term benzodiazepines, opioids, corticosteroids.
PRN (As-Needed) UseIntermittent dosing prevents steady-state blood levels.Unpredictable blood levels; can induce withdrawal between doses. Not a tapering method.May be a prescribing strategy to *prevent* dependence from the start. Not for stopping a scheduled regimen.

Anatomy, Physiology & Pharmacology Points
  • Mechanism of Action: Benzodiazepines (e.g., lorazepam) enhance the effect of the inhibitory neurotransmitter GABA at its receptor. This increases chloride ion influx into neurons, causing hyperpolarization and reduced neuronal firing (CNS depression).
  • Pathophysiology of Withdrawal: With chronic use, the brain downregulates GABA receptors and upregulates excitatory pathways to compensate. Abrupt removal of the drug leaves this excitatory state unopposed, leading to withdrawal symptoms.
  • Pharmacokinetics: Lorazepam has an intermediate half-life. Drugs with shorter half-lives (e.g., alprazolam) can cause quicker, more intense withdrawal.

Memory Tips
  • Acronym: BENZO withdrawal is BAD – Always TAPER.
    • Benzodiazepine
    • End long-term use?
    • Never stop suddenly
    • Zero in on safety
    • Order (collaborate for) a taper schedule
  • Association: Think of physical dependence like a tight spring. Abrupt stop = spring snaps back violently (withdrawal). Gradual taper = slowly releasing tension safely.

High-Frequency NCLEX Topics This is a Core pharmacology and safety topic. The NCLEX-RN loves to test:
  1. Safe Medication Administration & Discontinuation: Knowing which drugs require tapering (benzodiazepines, opioids, corticosteroids, some antidepressants).
  2. Patient Education: Teaching patients about the risks of abrupt cessation and the importance of following the taper plan.
  3. Collaboration: Recognizing the limits of nursing scope (e.g., not changing doses independently) and the need to collaborate with the prescriber.
  4. Priority Action: Identifying the most important or first action, which is often ensuring safety (preventing harm from withdrawal).

Watch Out for Question Variations!
  • Symptom Recognition: "A patient stopped taking alprazolam (Xanax) 2 days ago. Which finding requires immediate intervention?" (Answer: Seizure activity).
  • Patient Teaching: "Which statement by a patient tapering off lorazepam indicates understanding?" (Answer: "I will call my doctor if I start feeling very shaky or nervous.").
  • Drug Class Substitution: The same principle applies to Watch out for confusion! opioids (e.g., oxycodone), corticosteroids (e.g., prednisone), and some antidepressants (e.g., paroxetine). The correct action is always gradual taper under medical supervision.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are a nurse on a medical-surgical unit. Mr. Johnson, 58, is admitted for elective surgery. During medication reconciliation, you note he has taken lorazepam 2 mg TID for "nerves" for the past 8 months. He tells you, "I'm sick of these pills. I'm just going to quit them cold turkey when I get home."

Nursing Intervention Strategy:
  1. Assessment: Assess the patient's understanding of the medication, his reason for wanting to stop, and any previous attempts to reduce the dose. Inquire about any symptoms of anxiety or insomnia.
  2. Nursing Diagnosis: Risk for injury related to potential complications of benzodiazepine withdrawal. Deficient knowledge regarding safe medication discontinuation.
  3. Planning & Implementation:
    • Immediate Action (Advocacy & Collaboration): Explain the dangers of abrupt cessation in simple terms: "Mr. Johnson, because your body has gotten used to this medicine, stopping suddenly can be very dangerous and could even cause seizures. Let me talk to your surgeon and your primary care doctor so we can make a safe plan to lower the dose slowly." Document the conversation and notify the provider.
    • Patient Education: If a taper is ordered, provide clear, written instructions. Educate on:
      • The rationale for tapering (safety).
      • The specific schedule (e.g., reduce by 0.5 mg every 1-2 weeks).
      • Mild, expected withdrawal symptoms (increased anxiety, trouble sleeping) and when to report severe symptoms (tremors, palpitations, confusion).
      • The importance of not using alcohol or other sedatives during the taper.
    • Monitoring & Evaluation: Schedule a follow-up call or visit to assess adherence to the taper and monitor for withdrawal symptoms. Evaluate understanding by asking the patient to teach back the plan.
Patient Safety and Precautions:
  • Contraindication: Abrupt discontinuation is contraindicated.
  • Monitoring: During taper, monitor vital signs (especially for tachycardia, hypertension), neurological status (for tremor, agitation), and seizure precautions if indicated.
  • Polypharmacy Alert: Be cautious of other CNS depressants (opioids, sleep aids, alcohol) as they can potentiate effects during therapy and complicate withdrawal.

Nursing Procedure & Medication Flow Procedure for Supporting Medication Taper:
  1. Verify Order: Ensure a clear, written tapering schedule is in the patient's medication orders (e.g., "Lorazepam 1.5 mg TID x 1 week, then 1 mg TID x 1 week...").
  2. Dose Calculation & Administration: Accurately calculate and administer the reduced dose. For example, if the tablet is 0.5 mg, administering three tablets for a 1.5 mg dose. Double-check with another nurse if splitting tablets is required.
  3. Documentation: Document the administered dose, the patient's response, and any reported or observed symptoms related to the taper.
  4. Communication: Report any significant withdrawal symptoms or patient non-adherence to the taper plan to the provider immediately.

A Word from Your Senior Nurse "Medication safety is a huge part of our job. When a patient wants to stop a medication like a benzo, our instinct might be to support their autonomy. But our first duty is to prevent harm. You are the bridge between the patient's desire and medical safety. That conversation where you educate and collaborate isn't just 'following orders'—it's using your clinical judgment to protect your patient. On the NCLEX and in real life, the safe choice (tapering) is almost always the right choice when it comes to stopping long-term CNS drugs. Remember: First, do no harm."

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