A client with a sudden onset of big toe joint pain and swelling is diagnosed with gout. Which pathophysiologic process is producing the symptoms of gout?
Deposition of crystals in the synovial space of the joints produces inflammation and irritation.
Chondrocyte injury destroys joint cartilage, producing osteophytes and joint inflammation.
An immune complex and autoantibody deposition in connective tissue results in inflammation.
An autoimmune inflammation involving IgG response to an antigen causes joint destruction.
The Correct Answer is A
Gout is a type of inflammatory arthritis caused by the deposition of monosodium urate crystals in the joints and surrounding tissues. Here's an explanation of the pathophysiological process producing the symptoms of gout:
A) Deposition of crystals in the synovial space of the joints produces inflammation and irritation:
Correct. In gout, elevated levels of uric acid in the blood lead to the formation and deposition of monosodium urate crystals in the synovial fluid of joints, particularly in the big toe joint (first metatarsophalangeal joint) in many cases. These crystals trigger an inflammatory response, activating immune cells and causing swelling, redness, warmth, and severe pain in the affected joint. The inflammation and irritation result from the body's immune response to the presence of these crystals.
B) Chondrocyte injury destroys joint cartilage, producing osteophytes and joint inflammation:
This option describes a process more characteristic of osteoarthritis, where degeneration of joint cartilage leads to the formation of osteophytes (bone spurs) and joint inflammation. Gout involves the deposition of urate crystals rather than direct chondrocyte injury.
C) An immune complex and autoantibody deposition in connective tissue results in inflammation:
This process describes the pathophysiology of autoimmune diseases such as rheumatoid arthritis, where immune complexes and autoantibodies contribute to inflammation and tissue damage. In gout, the inflammation is primarily triggered by the deposition of urate crystals rather than immune complex deposition.
D) An autoimmune inflammation involving IgG response to an antigen causes joint destruction:
This option describes the autoimmune process seen in diseases like rheumatoid arthritis, where antibodies target specific antigens, leading to joint destruction. Gout is not an autoimmune disease, and joint destruction in gout is primarily due to inflammation caused by urate crystal deposition rather than autoimmune mechanisms.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Severely decreased GFR:
In stage 4 chronic kidney disease (CKD), the glomerular filtration rate (GFR) is indeed severely decreased. Stage 4 CKD is characterized by a GFR between 15 and 29 mL/min/1.73 m² according to the Kidney Disease Outcomes Quality Initiative (KDOQI) guidelines. At this stage, there is significant kidney damage, resulting in a substantial reduction in kidney function and GFR. Clients with stage 4 CKD require close monitoring and management to prevent further progression of kidney disease and associated complications.
B. Mildly decreased GFR:
This choice is incorrect. Stage 4 CKD is not associated with a mildly decreased GFR. A mildly decreased GFR would typically be indicative of earlier stages of CKD. In stage 4 CKD, the reduction in GFR is severe, falling below 30 mL/min/1.73 m².
C. Kidney damage with increased GFR:
This interpretation is inaccurate. In stage 4 CKD, kidney damage leads to a progressive decline in GFR, rather than an increase. An increased GFR is not typical of advanced CKD stages; instead, it may occur in conditions such as hyperfiltration in early stages of diabetic nephropathy.
D. Moderately decreased GFR:
This option is also incorrect. Stage 4 CKD is not associated with a moderately decreased GFR. A moderately decreased GFR would typically be indicative of stage 3 CKD, where the GFR ranges from 30 to 59 mL/min/1.73 m². In stage 4 CKD, the reduction in GFR is more severe, falling below 30 mL/min/1.73 m².
Correct Answer is B
Explanation
A) Elevation in blood pressure:
While elevation in blood pressure could potentially cause discomfort at the arterial line insertion site, it is not the most likely physiological effect to induce sudden pain in this scenario. Blood pressure elevation would typically cause generalized symptoms rather than localized pain at the insertion site.
B) Vasospasm at insertion site:
Correct. Vasospasm refers to the sudden constriction of blood vessels, leading to reduced blood flow. It can occur in response to arterial puncture or manipulation during arterial line insertion, resulting in sudden pain at the insertion site.
C) Clot in the arterial catheter:
A clot in the arterial catheter could potentially cause obstruction and affect blood flow, but it is less likely to induce sudden pain at the insertion site unless there is associated ischemia or tissue damage.
D) Air lock in the transducer:
An air lock in the transducer could disrupt pressure monitoring but is not typically associated with sudden pain at the insertion site. It may lead to inaccurate pressure readings rather than localized pain.
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