a patient with a diagnosis of deep vein thrombosis dvt is receiving heparin therapy which laboratory test should the nurse monitor to evaluate the eff
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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?

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. An elderly female client comes to the clinic for a regular check-up. The client tells the nurse that she has increased her daily doses of acetaminophen (Tylenol) for the past month to control joint pain. Based on this client's comment, what previous lab values should the nurse compare with today's lab report?

Correct answer: B

Rationale: When a client increases their daily doses of acetaminophen for joint pain, it raises concerns about possible liver damage due to acetaminophen overdose. LDH (Lactate Dehydrogenase) levels can indicate liver function, so comparing today's levels with previous ones can help assess for liver damage caused by acetaminophen overuse.

3. A 40-year-old man presents with abdominal pain, diarrhea, and weight loss. He has a history of Crohn's disease. Laboratory tests reveal low hemoglobin and elevated ESR. What is the most likely diagnosis?

Correct answer: D

Rationale: The symptoms of abdominal pain, diarrhea, weight loss, along with the history of Crohn's disease, and the laboratory findings of low hemoglobin and elevated ESR, strongly suggest a Crohn's disease flare. These clinical manifestations are classic features of a flare-up in a patient with a known history of Crohn's disease.

4. A client is admitted with diabetic ketoacidosis (DKA). Which assessment finding requires immediate intervention?

Correct answer: C

Rationale: The correct answer is C: Deep, rapid respirations (Kussmaul breathing). This is a sign of severe acidosis commonly seen in diabetic ketoacidosis (DKA) and requires immediate intervention. Kussmaul breathing helps to compensate for the metabolic acidosis by blowing off carbon dioxide. Prompt intervention is necessary to prevent further deterioration and potential respiratory failure. Fruity breath odor (Choice A) is a classic sign of DKA but does not require immediate intervention. While a blood glucose level of 450 mg/dL (Choice B) is high, it does not pose an immediate threat to the client's life. Serum potassium of 5.2 mEq/L (Choice D) is slightly elevated but not the most critical finding that requires immediate intervention in this scenario.

5. The healthcare provider is caring for a patient who is taking warfarin (Coumadin). Which laboratory value should the healthcare provider monitor closely?

Correct answer: B

Rationale: Corrected Rationale: When caring for a patient on warfarin, monitoring prothrombin time (PT) is crucial. PT helps assess the blood's ability to clot properly, ensuring the patient maintains therapeutic anticoagulation levels while minimizing bleeding risks. Platelet count (Choice A) is important but not the most critical for warfarin therapy. Hemoglobin level (Choice C) and white blood cell count (Choice D) are not directly related to monitoring the effects of warfarin.

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