ATI RN
ATI Pathophysiology Exam 3
1. Which of the following describes the condition in the body of clients experiencing hypovolemia?
- A. Increased urine retention
- B. Insufficient circulating blood volume
- C. Bounding peripheral pulses
- D. Crackles auscultated in the lungs
Correct answer: B
Rationale: The correct answer is B: Insufficient circulating blood volume. Hypovolemia is a condition characterized by a decrease in the volume of blood plasma. This reduction in circulating blood volume can lead to inadequate perfusion of tissues and organs, potentially resulting in shock if left untreated. Choices A, C, and D are incorrect because increased urine retention, bounding peripheral pulses, and crackles auscultated in the lungs are not typical manifestations of hypovolemia.
2. A client is admitted with a suspected aortic dissection. What is the priority nursing intervention?
- A. Administer antihypertensive medications as prescribed.
- B. Prepare the client for emergency surgery.
- C. Administer intravenous fluids to maintain blood pressure.
- D. Monitor the client's urine output closely.
Correct answer: B
Rationale: The correct answer is B: Prepare the client for emergency surgery. Aortic dissection is a life-threatening emergency that often necessitates immediate surgical intervention to prevent rupture and further complications. Administering antihypertensive medications (choice A) may be necessary but is not the priority over surgical intervention. While maintaining blood pressure with intravenous fluids (choice C) is important, the urgent need for surgery takes precedence. Monitoring urine output (choice D) is essential for assessing renal function but is not the priority in this critical situation.
3. What is a cause of the crystallization within the synovial fluid of the joint affected by gouty arthritis?
- A. Destruction of proteoglycans
- B. Underexcretion of uric acid
- C. Overexcretion of uric acid
- D. Increased absorption of uric acid
Correct answer: B
Rationale: The correct answer is B: Underexcretion of uric acid. In gouty arthritis, the crystallization within the synovial fluid of the affected joint is caused by the underexcretion of uric acid, leading to the accumulation and subsequent crystallization of urate crystals. Choice A, destruction of proteoglycans, is incorrect as it is not directly related to the crystallization process in gouty arthritis. Choice C, overexcretion of uric acid, is incorrect because gout is primarily associated with underexcretion or decreased excretion of uric acid rather than overexcretion. Choice D, increased absorption of uric acid, is also incorrect as the primary issue in gouty arthritis is the body's inability to properly eliminate uric acid.
4. How often should a patient be administered a tetanus toxoid?
- A. Every year
- B. Every 10 years
- C. Every 2 years
- D. Every 5 years
Correct answer: B
Rationale: Tetanus toxoid should be administered every 10 years to ensure continued protection against tetanus infection. The correct answer is 'Every 10 years.' Choice A ('Every year') is incorrect as the frequency is too frequent. Choice C ('Every 2 years') is incorrect as it is too frequent for tetanus toxoid administration. Choice D ('Every 5 years') is incorrect as it does not align with the recommended interval for tetanus toxoid booster doses.
5. A client with a history of rheumatic fever presents with signs of heart failure. What is the likely underlying cause?
- A. Infective endocarditis
- B. Coronary artery disease
- C. Mitral valve stenosis
- D. Aortic regurgitation
Correct answer: C
Rationale: The correct answer is C: Mitral valve stenosis. Rheumatic fever can lead to scarring and thickening of the heart valves, often affecting the mitral valve. This stenosis can impede blood flow from the left atrium to the left ventricle, eventually causing heart failure. Choice A, infective endocarditis, is an infection of the endocardium, the inner lining of the heart chambers and valves, and is not directly related to rheumatic fever. Choice B, coronary artery disease, involves the obstruction of coronary arteries supplying the heart muscle with blood, leading to ischemia and not typically associated with rheumatic fever. Choice D, aortic regurgitation, is the backflow of blood from the aorta to the left ventricle and is not a common consequence of rheumatic fever.
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