ISRO- 2016
Pharmacology
Medium

The nurse is teaching the client regarding the use of sodium warfarin. Which statement made by the client would require further teaching?

Appeared in: ISRO- 2016

Explanation

  • The statement about taking aspirin for a headache demonstrates a dangerous misunderstanding of warfarin therapy.
  • Aspirin has antiplatelet effects, which inhibit platelet aggregation, a key part of clot formation.
  • Warfarin is an anticoagulant that works by inhibiting vitamin K-dependent clotting factors.
  • Using both drugs together creates a synergistic effect, significantly increasing the risk of major bleeding events (e.g., gastrointestinal bleeding, intracranial hemorrhage).
  • The nurse must immediately correct this misconception and advise the client to avoid aspirin and NSAIDs, suggesting safer alternatives like acetaminophen after provider consultation.

Why Other Options Were Wrong

  • Option A: This statement is correct and shows the client understands the need for ongoing monitoring. Regular blood tests (INR) are essential to ensure the warfarin dose is within the therapeutic range (typically INR 2.0-3.0).
  • Option B: This statement is correct. It shows the client is aware of the need to monitor for potential adverse drug reactions. Skin rash is a possible side effect of warfarin that should be reported.
  • Option D: This statement is correct and demonstrates an understanding of necessary bleeding precautions. Using an electric razor instead of a blade razor reduces the risk of nicks and cuts, which can lead to prolonged bleeding in a patient on anticoagulants.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: Knowing Patient education and safety precautions for anticoagulant therapy with warfarin helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
  • Patient education is a critical nursing responsibility to prevent life-threatening complications of anticoagulant therapy, such as hemorrhage.
  • Nurses must assess the client's understanding of drug interactions, dietary restrictions (consistent vitamin K intake), bleeding precautions, and the importance of regular INR monitoring.
  • What if? If a patient on warfarin has a condition that requires antiplatelet therapy (e.g., a recent coronary stent), they would be managed under close medical supervision with a carefully calculated risk-benefit assessment, possibly with adjusted dosages or alternative agents, but self-medicating with aspirin is never safe.
How to Approach the Question
  • First, identify the core of the question: it's asking to find the client statement that is INCORRECT or DANGEROUS regarding warfarin therapy.
  • Analyze each option based on standard pharmacological and safety principles for anticoagulants.
  • Option A (monthly blood draw): Recall that warfarin requires INR monitoring. This is correct.
  • Option B (assess for rash): Recall that monitoring for adverse effects is part of patient teaching. This is correct.
  • Option C (take aspirin): Recall that aspirin is an antiplatelet drug. Combining it with an anticoagulant like warfarin severely increases bleeding risk. This is a dangerous action and indicates a lack of understanding.
  • Option D (use electric razor): Recall that bleeding precautions are essential for patients on warfarin. This is a correct safety measure.
Concept Tested & Keywords
  • Concept Tested: Patient education and safety precautions for anticoagulant therapy with warfarin.
  • Stem keywords: nurse, teaching, client, sodium warfarin
  • Lead-in keywords: require further teaching
  • Negative lead-in flag: The question asks for the statement that indicates a need for further teaching, which means identifying the incorrect or unsafe client statement.

Question ID

QPqfNPcH_qSbiRi5JEho3i

Reference Book

E6 Pharmacology Nursing Lilley 11e Part 2 p. 126-128

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 3 p. 80-82

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