which lab value is critical for a patient on heparin therapy
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Nursing Elites

ATI RN

ATI RN Exit Exam

1. Which lab value is critical for a patient on heparin therapy?

Correct answer: A

Rationale: The correct answer is to monitor aPTT. Activated Partial Thromboplastin Time (aPTT) is crucial for patients on heparin therapy as it helps determine the clotting ability of the blood. By monitoring aPTT, healthcare providers can adjust the dosage of heparin to maintain therapeutic levels and prevent bleeding complications. Monitoring INR is more commonly associated with warfarin therapy, not heparin. Monitoring platelet count is important for assessing the risk of bleeding or clotting disorders but is not specific to heparin therapy. Monitoring sodium levels is not directly related to assessing the effectiveness or safety of heparin therapy.

2. What is the best nursing action for a patient experiencing shortness of breath?

Correct answer: A

Rationale: Administering oxygen is the best nursing action for a patient experiencing shortness of breath as it helps alleviate the symptoms and improve oxygenation. Providing oxygen addresses the primary issue of inadequate oxygen levels in the body, which can be a life-threatening situation. Administering bronchodilators (choice B) may be appropriate for specific respiratory conditions like asthma but is not the initial intervention for all causes of shortness of breath. Repositioning the patient (choice C) can sometimes help improve breathing, but in a patient experiencing significant shortness of breath, immediate oxygen therapy is crucial. Providing IV fluids (choice D) is not indicated as the first-line intervention for shortness of breath unless there is a specific underlying cause such as dehydration.

3. A nurse is caring for a client who has heart failure and is receiving furosemide. Which of the following findings should the nurse identify as a therapeutic effect of the medication?

Correct answer: C

Rationale: The correct answer is C: Clear lung sounds. Clear lung sounds indicate a therapeutic effect of furosemide, as the medication helps reduce fluid overload in heart failure. Choice A, increased shortness of breath, is incorrect as furosemide is used to relieve symptoms like shortness of breath. Choice B, weight gain of 2.3 kg (5 lb), is incorrect as furosemide is a diuretic that helps reduce fluid retention leading to weight loss. Choice D, bounding pulse, is incorrect as furosemide does not directly impact the pulse rate.

4. A client is receiving radiation therapy to the head and neck. Which of the following interventions should the nurse include?

Correct answer: D

Rationale: The correct intervention for a client receiving radiation therapy to the head and neck is to avoid exposure to direct sunlight. Direct sunlight should be avoided to protect the skin from further irritation and damage caused by the radiation therapy. Instructing the client to use an alcohol-free mouthwash is important to prevent irritation and maintain oral hygiene, making choice A incorrect. Applying heat packs to the radiation site is contraindicated as heat can further aggravate the skin, making choice B incorrect. Providing a diet low in carbohydrates is not directly related to radiation therapy to the head and neck, so choice C is also incorrect.

5. Which electrolyte imbalance is common in patients receiving diuretics?

Correct answer: A

Rationale: The correct answer is Hypokalemia. Diuretics, such as furosemide, commonly cause potassium loss in patients, leading to hypokalemia. This electrolyte imbalance should be closely monitored to prevent complications like cardiac arrhythmias. Hypercalcemia (Choice B) is not typically associated with diuretic use. Hyponatremia (Choice C) involves low sodium levels and can occur in conditions like syndrome of inappropriate antidiuretic hormone secretion (SIADH) but is not directly caused by diuretics. Hypermagnesemia (Choice D) is an excess of magnesium, usually not a common electrolyte imbalance induced by diuretics.

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