The patient has been started on warfarin (Coumadin) for deep vein thrombosis. The patient asks when the medication will break up the clots. The nurse's best response would be:
"This medication will not break down clots but will make it less likely that the clot will get larger."
"It will break down the clot within 8 to 12 hours of administration."
"It will take 7 to 10 days for the clot to break down."
"You will need to be on this medication for a long time before it will break down the clot."
The Correct Answer is A
A. "This medication will not break down clots but will make it less likely that the clot will get larger." Warfarin (Coumadin) is an anticoagulant medication that works by inhibiting the synthesis of certain clotting factors in the liver. It does not directly break down existing clots but prevents the formation of new clots and the extension of existing ones. This response provides accurate information about the mechanism of action of warfarin.
B. "It will break down the clot within 8 to 12 hours of administration." This statement is incorrect. Warfarin does not have an immediate effect on existing clots. Its action is primarily preventive, reducing the risk of further clot formation and allowing the body's natural processes to gradually break down existing clots over time.
C. "It will take 7 to 10 days for the clot to break down." While the body's natural processes may start breaking down the clot within this timeframe, warfarin itself does not directly cause the dissolution of clots. This response is partially accurate in terms of the timeline for the body's natural clot resolution but does not specify that warfarin itself is not responsible for clot breakdown.
D. "You will need to be on this medication for a long time before it will break down the clot." This statement is misleading. Warfarin's role is to prevent the formation of new clots and further extension of existing ones rather than directly breaking down clots. Additionally, the duration of warfarin therapy is typically determined based on the individual's risk factors for clot formation, and it may not necessarily correlate with the time it takes for existing clots to resolve.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Use a 22-gauge needle to inject the medication.
This is inappropriate. Subcutaneous injections typically require a smaller gauge needle, usually between 25 to 30 gauge, to minimize tissue damage and discomfort. A 22-gauge needle is too large for subcutaneous injections and is more appropriate for intramuscular injections.
B. Inject the medication into the abdomen above the level of the iliac crest.
This is appropriate. The preferred site for subcutaneous heparin injection is the abdomen, avoiding areas near the umbilicus by at least 2 inches. Injecting above the level of the iliac crest is appropriate as it ensures the medication is administered into the subcutaneous tissue where it can be properly absorbed. The abdomen is chosen due to its ample subcutaneous tissue and relatively few large blood vessels, reducing the risk of bleeding and bruising.
C. Massage the injection site after administration of the medication.
This is inappropriate. Massaging the injection site after administering heparin is not recommended as it can cause bruising and increase the risk of bleeding. Heparin is an anticoagulant, and massaging the site can disrupt the tissue and lead to complications.
D. Use a 1-inch needle to inject the medication.
This is inappropriate. A 1-inch needle is generally used for intramuscular injections, not subcutaneous injections. For subcutaneous injections, a shorter needle (usually 3/8 to 5/8 inch) is sufficient to reach the subcutaneous tissue without penetrating too deeply into muscle tissue.
Correct Answer is B
Explanation
A. Have suction equipment at the bedside. Clopidogrel is an antiplatelet medication that inhibits blood clot formation. While it does not typically increase the risk of bleeding to the extent that requires constant suctioning, it's prudent to have suction equipment readily available for any patient who may be at risk of bleeding due to their underlying condition or concurrent medications. However, the administration of clopidogrel alone does not necessitate the need for constant suctioning.
B. Monitor the client for black, tarry stools. This is the correct answer. Clopidogrel, like other antiplatelet medications, increases the risk of bleeding, including gastrointestinal bleeding. Black, tarry stools can indicate gastrointestinal bleeding, which can be a serious complication of clopidogrel therapy. Therefore, monitoring for this symptom is essential for early detection of potential bleeding complications.
C. Administer the medication with each meal. Clopidogrel can be administered with or without food, as it is not significantly affected by food intake. However, there is no specific recommendation to administer it with meals. The timing of administration may vary based on the prescriber's instructions or patient preferences, but it does not need to be consistently administered with meals.
D. Initiate contact precautions. Clopidogrel therapy does not require contact precautions. Contact precautions are typically implemented for patients with contagious infections that spread via direct or indirect contact. Clopidogrel does not pose a risk of transmission to others and does not warrant contact precautions.
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