ATI RN
Pathophysiology Exam 1 Quizlet
1. What is the cause of swelling during acute inflammation?
- A. Collagenase
- B. Fluid exudate
- C. Lymphocytic margination
- D. Anaerobic glycolysis
Correct answer: B
Rationale: Swelling during acute inflammation is primarily caused by the accumulation of fluid exudate in the affected tissues. This fluid exudate contains proteins and cells that leak from blood vessels due to increased vascular permeability. Collagenase (Choice A) is an enzyme that breaks down collagen and is not directly responsible for swelling. Lymphocytic margination (Choice C) is the process where white blood cells line up along the blood vessel walls, which does not directly cause swelling. Anaerobic glycolysis (Choice D) is a metabolic process that occurs in the absence of oxygen and is not related to the mechanism of swelling in acute inflammation.
2. A client with a history of heart failure is receiving furosemide. Which of the following laboratory values should the nurse monitor?
- A. Sodium 140 mEq/L
- B. Calcium 9.0 mg/dL
- C. Potassium 3.2 mEq/L
- D. Chloride 100 mEq/L
Correct answer: C
Rationale: The correct answer is C: Potassium 3.2 mEq/L. A potassium level of 3.2 mEq/L is below the normal range and should be monitored in clients receiving furosemide due to the risk of hypokalemia. Furosemide is a loop diuretic that can cause potassium depletion, leading to hypokalemia. Monitoring potassium levels is crucial to prevent complications such as cardiac arrhythmias. Choices A, B, and D are not directly impacted by furosemide therapy in the same way as potassium levels, making them less relevant for monitoring in this scenario.
3. A public health nurse has formed an interdisciplinary team that is developing an educational program entitled Cancer: The Risks and What You Can Do About Them. Participants will receive information, but the major focus will be screening for relevant cancers. This program is an example of what type of health promotion activity?
- A. Disease prophylaxis
- B. Risk reduction
- C. Secondary prevention
- D. Tertiary prevention
Correct answer: C
Rationale: Secondary prevention involves screening and early detection activities that seek to identify early-stage cancer in individuals who lack symptoms.
4. A male patient with erectile dysfunction is prescribed sildenafil (Viagra). What specific instruction should the nurse provide to ensure the safe use of this medication?
- A. Take the medication with food to prevent nausea.
- B. Avoid taking nitrates while on this medication.
- C. Take the medication at bedtime to ensure absorption during sleep.
- D. Take the medication with milk to enhance absorption.
Correct answer: B
Rationale: The correct instruction the nurse should provide is to avoid taking nitrates while on sildenafil (Viagra). Combining sildenafil with nitrates can result in severe hypotension due to additive vasodilatory effects. Choice A is incorrect because sildenafil can be taken with or without food. Choice C is incorrect as there is no specific requirement to take sildenafil at bedtime. Choice D is incorrect as taking sildenafil with milk has not been shown to enhance its absorption.
5. Which of the following methods is the best method for determining nasogastric tube placement in the stomach?
- A. X-ray
- B. Observation of gastric aspirate
- C. Testing of pH of gastric aspirate
- D. Placement of external end of tube under water
Correct answer: A
Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.
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