A nurse is reviewing laboratory data from a client who has pulmonary embolism and is receiving IV heparin. Which of the following findings should the nurse report to the provider?
Platelets 74,000/mm3
White blood cell count 8,000/mm3
Partial thromboplastin time (PTT) 55 seconds
Hematocrit 45%
The Correct Answer is A
A. Platelets 74,000/mm: A platelet count of 74,000/mm³ is significantly lower than the normal range (typically 150,000 to 450,000/mm³). This could indicate heparin-induced thrombocytopenia (HIT), a serious adverse effect of heparin therapy where the immune system forms antibodies against heparin bound to platelet factor 4, leading to a decrease in platelets and increased risk of thrombosis. This is a critical finding and should be reported immediately to the provider for further evaluation and potential adjustment of the treatment plan.
B. White blood cell count 8,000/mm³: This is within the normal range (typically 4,000 to 11,000/mm³) and does not indicate an immediate problem related to heparin therapy or pulmonary embolism management.
C. Partial thromboplastin time (PTT) 55 seconds: While slightly elevated, this PTT is within the therapeutic range for a patient receiving IV heparin (typically 1.5 to 2.5 times the normal control value, or about 45 to 70 seconds). This indicates that the heparin is having the desired anticoagulant effect.
D. Hematocrit 45%: This is within the normal range for adults (typically 38-50% for men and 35-45% for women) and does not indicate an immediate concern related to heparin therapy or pulmonary embolism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. If he misses a dose, he should double the dose at the next scheduled time: This statement is incorrect. Doubling the dose of warfarin after missing a dose can significantly increase the risk of bleeding due to excessive anticoagulation. The nurse should emphasize the importance of taking the medication as prescribed and what to do if a dose is missed, such as contacting the healthcare provider for guidance.
B. The client should use an electric razor while on this medication: This statement is correct. Warfarin is an anticoagulant medication that can increase the risk of bleeding. Therefore, it's essential for patients taking warfarin to avoid activities that may increase the risk of injury or bleeding, such as shaving with a traditional razor that can cause cuts or nicks. Using an electric razor reduces this risk.
C. Mild nosebleeds are common during initial treatment: This statement is not entirely accurate. While warfarin can increase the risk of bleeding, including nosebleeds, it's not necessarily common during the initial treatment phase. However, patients should be aware of signs of bleeding and report them to their healthcare provider promptly.
D. Warfarin increases the risk for deep vein thrombosis: This statement is incorrect. Warfarin is actually prescribed to reduce the risk of blood clots, including deep vein thrombosis (DVT), pulmonary embolism (PE), and stroke, in patients who are at risk for these conditions. It works by inhibiting the formation of blood clots. Therefore, it does not increase the risk of DVT; rather, it decreases it.
Correct Answer is D
Explanation
A. Trombin (Evithrom): Incorrect: Thrombin (also known as factor IIa) is not typically used as a hemostatic drug. It is involved in the final step of the coagulation cascade, converting fibrinogen to fibrin to form a stable clot. However, it is not administered directly as a medication.
B. Aminocaproic acid (Amicar): Aminocaproic acid is an antifibrinolytic agent commonly used to control bleeding. It works by inhibiting the breakdown of fibrin clots, thus promoting hemostasis. It is particularly useful in situations where excessive bleeding occurs due to impaired clot dissolution. However, tranexamic acid is generally considered more potent and has a longer-lasting effect, making it the preferred choice in many situations.
C. Aspirin: Incorrect: Aspirin is an antiplatelet medication that inhibits platelet aggregation. While it can reduce the risk of clot formation, it is not primarily used for controlling postoperative bleeding.
D. Tranexamic acid (Cyklokapron): Correct: Tranexamic acid is another antifibrinolytic agent that helps prevent excessive bleeding. It works by blocking the breakdown of fibrin clots. Tranexamic acid is commonly used in surgical settings to manage bleeding during and after procedures.
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