ATI LPN
ATI PN Adult Medical Surgical 2019
1. A client with deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to assess the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. Platelet count
- C. Activated partial thromboplastin time (aPTT)
- D. International normalized ratio (INR)
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works by prolonging the clotting time, which is reflected in the aPTT results. Monitoring aPTT helps ensure the patient is within the therapeutic range and not at risk of bleeding or clotting complications. Prothrombin time (PT) (Choice A) primarily measures the extrinsic pathway of coagulation and is used to monitor warfarin therapy, not heparin. Platelet count (Choice B) assesses the number of platelets present in the blood and is not specific to monitoring heparin therapy. International normalized ratio (INR) (Choice D) is used to monitor warfarin therapy, not heparin.
2. After performing a paracentesis on a client with ascites, 3 liters of fluid are removed. Which assessment parameter is most critical for the nurse to monitor following the procedure?
- A. Pedal pulses.
- B. Breath sounds.
- C. Gag reflex.
- D. Vital signs.
Correct answer: D
Rationale: Following a paracentesis where a significant amount of fluid is removed, it is crucial to monitor the client's vital signs. This helps in detecting any signs of hypovolemia, such as changes in blood pressure, heart rate, and respiratory rate, which could indicate complications post-procedure. Monitoring the vital signs allows for prompt intervention if there are any deviations from the baseline values.
3. A client is undergoing chemotherapy and is at risk for developing thrombocytopenia. What precaution should the nurse teach the client to minimize the risk of bleeding?
- A. Use a soft-bristled toothbrush.
- B. Engage in daily aerobic exercise.
- C. Take aspirin for headaches.
- D. Use an electric razor for shaving.
Correct answer: A
Rationale: Using a soft-bristled toothbrush is essential for clients at risk of thrombocytopenia to prevent gum bleeding, as their platelet counts may be low. Vigorous brushing with a hard-bristled toothbrush can injure the gums, leading to bleeding, which can be exacerbated in clients with low platelets. Therefore, advising the client to use a soft-bristled toothbrush is a crucial precaution to minimize the risk of bleeding.
4. A client with chronic kidney disease is prescribed a low-protein diet. Which laboratory result should the nurse monitor to evaluate the effectiveness of the diet?
- A. Blood urea nitrogen (BUN)
- B. Serum potassium
- C. Serum calcium
- D. Creatinine clearance
Correct answer: A
Rationale: Blood urea nitrogen (BUN) levels should be monitored to assess the effectiveness of a low-protein diet in clients with chronic kidney disease. BUN levels reflect the breakdown of protein in the body, and a low-protein diet aims to reduce BUN levels to lessen the workload on the kidneys. Therefore, monitoring BUN levels is crucial in managing kidney function and evaluating the impact of dietary modifications. Serum potassium, serum calcium, and creatinine clearance are important parameters to monitor in clients with chronic kidney disease, but they are not specifically indicative of the effectiveness of a low-protein diet. Serum potassium levels are crucial in assessing electrolyte balance, serum calcium levels are important for bone health and nerve function, and creatinine clearance reflects kidney function overall, not just the impact of a low-protein diet.
5. A client with type 2 diabetes mellitus presents to the clinic with a foot ulcer. Which instruction should the nurse provide to the client to promote healing of the ulcer?
- A. Apply a heating pad to the ulcer twice daily.
- B. Wear tight-fitting shoes to protect the ulcer.
- C. Keep the ulcer clean and dry.
- D. Limit walking to reduce pressure on the ulcer.
Correct answer: C
Rationale: The correct answer is C: "Keep the ulcer clean and dry." For clients with diabetes mellitus, it is crucial to maintain foot ulcers clean and dry to prevent infection and promote healing. Moist environments can lead to bacterial growth and delay healing. Applying a heating pad (Choice A) can increase the risk of burns and further damage the ulcer. Wearing tight-fitting shoes (Choice B) can cause friction and pressure on the ulcer, hindering the healing process. Limiting walking (Choice D) excessively can affect circulation and delay healing. Therefore, the nurse should instruct the client to keep the ulcer clean and dry for optimal wound care management.
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