ATI LPN
ATI Learning System PN Medical Surgical Final Quizlet
1. A patient with a diagnosis of deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. Bleeding time
- D. Platelet count
Correct answer: B
Rationale: The correct answer is B: Partial thromboplastin time (PTT). Heparin affects the intrinsic pathway of the coagulation cascade, which is reflected by changes in the PTT. Monitoring the PTT helps ensure that the patient's blood is within the desired therapeutic range and prevents complications related to clotting or bleeding. Prothrombin time (PT) primarily assesses the extrinsic pathway and is not as sensitive to heparin therapy. Bleeding time and platelet count are not specific tests for monitoring the effectiveness of heparin therapy in DVT.
2. A client who is receiving heparin therapy has an activated partial thromboplastin time (aPTT) of 90 seconds. What action should the nurse take?
- A. Increase the heparin infusion rate.
- B. Notify the healthcare provider.
- C. Apply pressure to the injection site.
- D. Administer protamine sulfate.
Correct answer: B
Rationale: An activated partial thromboplastin time (aPTT) of 90 seconds is elevated, indicating a risk of bleeding. The appropriate action for the nurse is to notify the healthcare provider. Increasing the heparin infusion rate can further elevate the aPTT, leading to an increased risk of bleeding. Applying pressure to the injection site is not relevant in this situation. Administering protamine sulfate is used to reverse the effects of heparin in cases of overdose or bleeding, but it is not the initial action for an elevated aPTT.
3. A client diagnosed with dementia is disoriented, wandering, has a decreased appetite, and is having trouble sleeping. What is the priority nursing problem for this client?
- A. Disturbed thought processes.
- B. Altered sleep pattern.
- C. Imbalanced nutrition: less than.
- D. Risk for injury.
Correct answer: D
Rationale: The correct answer is 'Risk for injury.' In a client with dementia who is disoriented, wandering, and experiencing sleep disturbances, the priority nursing problem is the risk for injury. Disorientation and wandering behavior can lead to accidents, falls, or other harmful situations, making it crucial for the nurse to address the safety concerns first to prevent any potential harm to the client.
4. Which regimen is most effective for treating H. pylori infection?
- A. Metronidazole, bismuth subsalicylate, amoxicillin for 14 days
- B. Clarithromycin and omeprazole for 14 days
- C. Metronidazole, lansoprazole, and clarithromycin for 14 days
- D. Metronidazole, clarithromycin, and omeprazole for 7 days
Correct answer: C
Rationale: Regimen C, which consists of metronidazole, lansoprazole, and clarithromycin for 14 days, is recommended by the FDA as an effective treatment for H. pylori infection. This regimen has been shown to have a high eradication rate and is a standard recommendation in clinical practice guidelines for the management of H. pylori-related conditions.
5. A client with chronic renal failure is scheduled to receive epoetin alfa (Epogen). Which laboratory result should the nurse review before administering the medication?
- A. Blood urea nitrogen (BUN)
- B. Creatinine clearance
- C. Hemoglobin level
- D. Serum potassium
Correct answer: C
Rationale: The correct answer is to review the hemoglobin level before administering epoetin alfa (Epogen) to assess its effectiveness in stimulating red blood cell production. Hemoglobin level is a crucial indicator to monitor in clients with chronic renal failure receiving this medication. Choice A (Blood urea nitrogen) and Choice B (Creatinine clearance) are commonly monitored in renal failure but are not specifically relevant to assessing the effectiveness of epoetin alfa. Choice D (Serum potassium) is important to monitor due to potential imbalances in renal failure, but it is not directly related to evaluating the effectiveness of epoetin alfa.
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