a client with a history of deep vein thrombosis dvt is receiving warfarin coumadin which laboratory value indicates a therapeutic effect of the medica
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Nursing Elites

ATI LPN

Medical Surgical ATI Proctored Exam

1. A client with a history of deep vein thrombosis (DVT) is receiving warfarin (Coumadin). Which laboratory value indicates a therapeutic effect of the medication?

Correct answer: A

Rationale: An INR (International Normalized Ratio) of 2.5 indicates a therapeutic level for clients receiving warfarin (Coumadin) to prevent thromboembolism. It is essential to monitor INR levels regularly when on warfarin therapy to ensure that the blood's ability to clot is within the desired range to prevent both clotting and excessive bleeding.

2. The client with newly diagnosed hypertension is being taught about lifestyle modifications. Which recommendation should be made?

Correct answer: C

Rationale: Engaging in at least 150 minutes of moderate exercise per week is a key lifestyle modification recommended for individuals with hypertension. Regular exercise helps manage blood pressure, improve cardiovascular health, and overall well-being. It is important for the client to adopt a healthy lifestyle to control hypertension and reduce the risk of complications.

3. What is an important teaching point for a patient prescribed dabigatran for atrial fibrillation?

Correct answer: B

Rationale: The correct teaching point for a patient prescribed dabigatran is not to crush or chew the capsules. Doing so can alter the absorption of the medication, increasing the risk of bleeding. It is important for patients to swallow the capsules whole to ensure proper delivery of the medication.

4. A 40-year-old woman presents with fatigue, polyuria, and polydipsia. Laboratory tests reveal hyperglycemia and ketonuria. What is the most likely diagnosis?

Correct answer: A

Rationale: The combination of symptoms including fatigue, polyuria, polydipsia, along with laboratory findings of hyperglycemia and ketonuria strongly suggest type 1 diabetes mellitus. In type 1 diabetes mellitus, there is a deficiency of insulin leading to high blood sugar levels (hyperglycemia) and the breakdown of fats producing ketones, causing ketonuria. Type 2 diabetes mellitus typically presents differently and is more common in older individuals. Diabetes insipidus is characterized by excessive thirst and urination due to a deficiency of antidiuretic hormone, distinct from the provided clinical scenario. Hyperthyroidism may present with some overlapping symptoms like fatigue, but it does not account for the specific laboratory findings of hyperglycemia and ketonuria seen in this case.

5. Which of the following statements about Helicobacter pylori (H. pylori) is false?

Correct answer: C

Rationale: H. pylori is known to reside in the mucus layer of the stomach and does not invade the epithelium. It produces urease that splits urea into ammonia and CO2. This action helps in neutralizing the acidic environment and allows H. pylori to survive. Additionally, urease activity can be detected in diagnostic tests for H. pylori. The stimulation of gastric acid secretion and disruption of the protective mucus layer are mechanisms by which H. pylori promotes injury. While eradicating H. pylori infection has been associated with a decreased risk of developing gastric cancer, it does not prevent adenocarcinoma of the stomach entirely.

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