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 B
Explanation
Choice A rationale:
Increasing the intake of dairy products is not recommended for a client with irritable bowel syndrome (IBS) as dairy can exacerbate symptoms in some individuals, particularly if they are lactose intolerant.
Choice B rationale:
Drinking ten glasses of water each day is a helpful recommendation for clients with IBS. Staying hydrated can aid in digestion and help alleviate symptoms like constipation.
Choice C rationale:
Decreasing daily fiber intake to 20 grams is not advisable for IBS management. Adequate fiber intake is essential for maintaining bowel regularity and overall gut health. Instead, it is recommended to focus on soluble fiber and gradually increase fiber intake to avoid exacerbating symptoms.
Choice D rationale:
Encouraging the intake of clear carbonated fluids is not ideal for clients with IBS. Carbonated beverages can cause bloating and gas, potentially worsening symptoms in individuals with sensitive digestive systems. It is better to recommend non-carbonated, non-caffeinated fluids for hydration.
Correct Answer is A
Explanation
Choice A rationale:
Applying clean gloves when removing the old dressing from the catheter site is essential to prevent infection and maintain an aseptic technique during peritoneal dialysis catheter care. Gloves protect both the nurse and the patient from potential contamination.
Choice B rationale:
Cleansing the area by using a circular motion beginning at the catheter site and moving outward is not the correct technique. When caring for a dialysis catheter, the nurse should cleanse the site using an outward, circular motion starting from the insertion site to minimize the risk of contamination.
Choice C rationale:
Using warm water to cleanse the catheter site is not recommended. The peritoneal dialysis catheter site should be cleaned with an appropriate antiseptic solution or disinfectant, as warm water alone may not effectively remove bacteria or prevent infections.
Choice D rationale:
Placing an occlusive dressing over the catheter site after cleaning is not the standard practice for peritoneal dialysis catheter care. Typically, a clean, dry dressing is applied to the catheter site after cleaning to keep it clean and dry, but it should not be occlusive.
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