a client who is receiving heparin therapy has an activated partial thromboplastin time aptt of 90 seconds what action should the nurse take
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Nursing Elites

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ATI PN Adult Medical Surgical 2019

1. A client who is receiving heparin therapy has an activated partial thromboplastin time (aPTT) of 90 seconds. What action should the nurse take?

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.

2. The client has just been diagnosed with Addison's disease. Which clinical manifestation should the nurse expect to find?

Correct answer: B

Rationale: Hyperpigmentation and hypotension are classic clinical manifestations of Addison's disease due to decreased cortisol production. Hyperpigmentation occurs due to elevated levels of ACTH, leading to increased melanin synthesis. Hypotension results from aldosterone deficiency, causing sodium loss and volume depletion.

3. A patient with bipolar disorder is prescribed lithium. What dietary advice should the nurse provide?

Correct answer: B

Rationale: The correct answer is B: Maintain a consistent salt intake. Patients prescribed lithium should maintain a consistent salt intake to help stabilize lithium levels. Fluctuations in salt intake can affect the levels of lithium in the body, potentially leading to toxicity or reduced effectiveness of the medication. It is important for patients to be consistent with their salt intake and to avoid sudden increases or decreases. Choices A, C, and D are incorrect. Increasing intake of caffeine is not recommended as it can interfere with the effects of lithium. Avoiding dairy products is not necessary unless there are specific intolerances or interactions with other medications. While green leafy vegetables are generally healthy, there is no specific recommendation to increase their intake in relation to lithium therapy.

4. A 60-year-old woman presents with fatigue, pruritus, and jaundice. Laboratory tests reveal elevated bilirubin and alkaline phosphatase levels. What is the most likely diagnosis?

Correct answer: B

Rationale: The symptoms of fatigue, pruritus, jaundice, and elevated bilirubin and alkaline phosphatase levels are classic features of primary biliary cirrhosis, an autoimmune liver disease. Hepatitis C typically presents with different symptoms and findings, such as specific viral markers. Hemochromatosis and Wilson's disease involve iron overload and copper accumulation, respectively, leading to distinct clinical and laboratory findings, which do not match the presentation described 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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