ATI RN
ATI Pathophysiology Exam 1
1. What causes secondary brain injury after head trauma?
- A. Brain injury resulting from the body’s response to tissue damage
- B. Brain injury resulting from initial trauma
- C. Injury as a result of medical therapy
- D. Focal areas of bleeding
Correct answer: A
Rationale: The correct answer is A. Secondary brain injury occurs due to the body's response to the initial trauma, which can worsen the effects of the primary injury. This response includes processes like inflammation, increased intracranial pressure, and reduced oxygen delivery to tissues. Choice B is incorrect because it refers to the primary trauma itself, not the secondary injury. Choice C is incorrect as it relates to injury caused by medical interventions rather than the body's response. Choice D is incorrect as it specifically mentions focal areas of bleeding, which is a consequence of trauma rather than the cause of secondary brain injury.
2. A client with a history of smoking presents with a chronic cough and shortness of breath. The nurse should suspect which condition?
- A. Pulmonary fibrosis
- B. Chronic obstructive pulmonary disease (COPD)
- C. Lung cancer
- D. Pulmonary edema
Correct answer: B
Rationale: The correct answer is B: Chronic obstructive pulmonary disease (COPD). COPD is often associated with a chronic cough and shortness of breath, especially in individuals with a history of smoking. Pulmonary fibrosis (choice A) typically presents with progressive dyspnea and dry cough. Lung cancer (choice C) may present with a chronic cough, shortness of breath, and other symptoms like weight loss and hemoptysis. Pulmonary edema (choice D) presents with symptoms such as acute shortness of breath, orthopnea, and pink, frothy sputum.
3. How will taking an oral contraceptive affect the physiologically of an insulin-dependent diabetic patient?
- A. Increase risk of hypoglycemia
- B. Increase heart rate
- C. Increase blood glucose
- D. Increase risk of metabolic alkalosis
Correct answer: C
Rationale: Taking an oral contraceptive can lead to an increase in blood glucose levels in insulin-dependent diabetic patients. This occurs due to the hormonal changes induced by the contraceptive, which can impact insulin sensitivity. Therefore, diabetic patients need to closely monitor their blood glucose levels when starting an oral contraceptive to prevent complications. The other choices are incorrect as oral contraceptives do not typically lead to an increase in heart rate, risk of hypoglycemia, or risk of metabolic alkalosis in this context.
4. A male patient is being treated with sildenafil (Viagra) for erectile dysfunction. What condition would contraindicate the use of this medication?
- A. Peptic ulcer disease
- B. History of myocardial infarction
- C. Recent use of antihypertensive medications
- D. Use of nitrates
Correct answer: D
Rationale: The correct answer is D: Use of nitrates. Sildenafil (Viagra) is contraindicated in patients taking nitrates due to the risk of severe hypotension. Nitrates and sildenafil both cause vasodilation, and the combination can lead to a dangerous drop in blood pressure. Choice A, peptic ulcer disease, is not a contraindication for sildenafil use. Choice B, a history of myocardial infarction, is not a contraindication unless the patient is also taking nitrates. Choice C, recent use of antihypertensive medications, is not a contraindication but requires caution as the combination can lead to additive effects lowering blood pressure.
5. During an acute asthma exacerbation, what is the priority nursing intervention for a client with asthma?
- A. Administer corticosteroids to reduce airway inflammation.
- B. Position the client in high-Fowler's position.
- C. Administer short-acting beta-agonists (SABAs) as prescribed.
- D. Obtain a peak flow reading to assess the severity of the exacerbation.
Correct answer: C
Rationale: The priority nursing intervention during an acute asthma exacerbation is to administer short-acting beta-agonists (SABAs) as prescribed. SABAs help in quickly relieving bronchospasm and are considered the first-line treatment for acute exacerbations. Administering corticosteroids, positioning the client, and obtaining a peak flow reading are important interventions but come after administering SABAs in the management of acute asthma exacerbation.
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