A nurse is caring for a client who has a pulmonary embolism and is receiving therapy with unfractionated heparin. Which of the following laboratory results indicates that the therapy is effective?
PT 12 seconds.
aPTT 75 seconds.
INR 1.1.
Platelets 200,000/mm².
The Correct Answer is B
Choice A rationale:
A PT (Prothrombin Time) of 12 seconds is not indicative of the effectiveness of heparin therapy for a pulmonary embolism. PT measures the extrinsic pathway of the coagulation cascade, and it is more relevant to monitor in patients on warfarin therapy.
Choice B rationale:
The aPTT (Activated Partial Thromboplastin Time) of 75 seconds is the correct choice as it reflects the effectiveness of unfractionated heparin therapy. Heparin works by inhibiting clotting factors in the intrinsic pathway, and the aPTT is used to monitor heparin's anticoagulant effect. The normal range for aPTT is typically 25-35 seconds.
Choice C rationale:
An INR (International Normalized Ratio) of 1.1 is not the appropriate parameter to assess the effectiveness of heparin therapy. INR is primarily used to monitor the effectiveness of oral anticoagulants like warfarin, not heparin.
Choice D rationale:
The platelet count of 200,000/mm² is not a suitable parameter to evaluate the effectiveness of heparin therapy. Platelet count is important for assessing the risk of bleeding or clotting disorders but does not directly measure the impact of heparin on clotting factors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Verify that the client has adequate IV access.
Choice A rationale:
Administering vasopressin to the client might be necessary to manage the hemorrhage, but before any medication administration, it is crucial to ensure the client has adequate IV access. Vasopressin is a vasoconstrictor and can help control bleeding from esophageal varices, but its effectiveness relies on IV access to deliver the medication promptly.
Choice B rationale:
Requesting blood from the blood bank is essential for a client experiencing significant bleeding. However, the priority action is to verify IV access to administer any necessary blood products.
Choice C rationale:
This is the correct choice. Before initiating any interventions, ensuring the client has appropriate IV access is a priority. Adequate IV access is necessary to administer fluids, medications, or blood products promptly and effectively stabilize the client's blood pressure.
Choice D rationale:
Inserting an indwelling urinary catheter is not the priority action in this situation. While monitoring urine output is important, it should be secondary to addressing the client's hypotension and hemorrhage.
Correct Answer is B
Explanation
Choice A rationale:
Administering furosemide may be appropriate for managing ascites, but it is not directly related to preventing complications. Furosemide is a diuretic that helps reduce fluid retention but does not address other potential complications of liver cirrhosis.
Choice B rationale:
Weighing the client weekly is essential to monitor changes in body weight and fluid status, which is crucial in detecting worsening ascites or fluid retention. Sudden weight gain could indicate an exacerbation of ascites or other complications, warranting timely intervention.
Choice C rationale:
Offering the client a high-sodium diet is contraindicated in managing ascites. A high-sodium diet would lead to increased fluid retention and worsen the ascites, potentially exacerbating the client's condition and increasing the risk of complications.
Choice D rationale:
Administering heparin is not relevant to preventing complications in a client with liver cirrhosis and abdominal ascites. Heparin is an anticoagulant, and its use is not indicated for this particular condition.
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