Gout and Its Treatment
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Questions and Answers

What is a common side effect of allopurinol?

  • Severe abdominal pain
  • Headache
  • Diarrhea (correct)
  • Weight gain

Which condition is allopurinol indicated for?

  • Prevention of recurrent calcium oxalate kidney stones (correct)
  • Management of diabetes
  • Treatment of acute kidney injury
  • Management of hypertension

Which of the following serious reactions can occur with allopurinol hypersensitivity?

  • Fatigue
  • Toxic epidermal necrolysis (correct)
  • Dry mouth
  • Nausea and vomiting

What is a common consequence of starting uricosuric therapy?

<p>Increased risk of nephrolithiasis (D)</p> Signup and view all the answers

What should be monitored in patients taking allopurinol, especially those with renal impairment?

<p>Liver enzyme levels (A)</p> Signup and view all the answers

What is the primary mechanism leading to hyperuricemia?

<p>Net uric acid production exceeds uric acid excretion (D)</p> Signup and view all the answers

Which drug is classified as a urate-lowering drug?

<p>Allopurinol (D)</p> Signup and view all the answers

Which statement about colchicine is true?

<p>It is effective in treating gouty arthritis. (A)</p> Signup and view all the answers

What is a common side effect of colchicine?

<p>Diarrhea (A)</p> Signup and view all the answers

Which of the following statements correctly describes allopurinol?

<p>It is an inhibitor of xanthine oxidase. (A)</p> Signup and view all the answers

What role does xanthine oxidase play in uric acid metabolism?

<p>It catalyzes the conversion of xanthine to uric acid. (A)</p> Signup and view all the answers

What is the most common use of colchicine in gout treatment?

<p>For daily prophylaxis (C)</p> Signup and view all the answers

Which of the following correctly describes urate-lowering drugs?

<p>They can enhance excretion or block production of uric acid. (B)</p> Signup and view all the answers

Study Notes

Gout

  • Gout is caused by issues with uric acid metabolism.
  • Elevated uric acid levels lead to the deposition of monosodium urate crystals in joints and tissues.
  • These crystals cause inflammation.

Gout Treatment

  • Drug therapy for gout focuses on treating acute gouty arthritis and lowering uric acid.

Drugs for Acute Gouty Arthritis

  • Colchicine
    • Plant alkaloid
    • Not an analgesic
    • Doesn't affect uric acid excretion or alter plasma solubility
    • Reduces inflammatory response to deposited crystals
    • Mechanism of action not fully defined
    • Can cause gastrointestinal and hematological toxicity
  • NSAIDs
  • Steroids
  • Rest, analgesia, ice, and time

Drugs for Lowering Uric Acid

  • Allopurinol
    • Inhibitor of xanthine oxidase
    • Effectively blocks uric acid formation
    • Metabolized to oxypurinol
    • Once-daily dosing
    • Can cause rare but potentially lethal side effects, including Stevens-Johnson syndrome
  • Probenecid
    • Moderately effective uricosuric agent
    • Increases risk of nephrolithiasis
    • Not used in patients with renal disease
    • Has frequent but mild side effects
    • Effectiveness is reduced by some medications, such as aspirin
  • Uricosuric Therapy Contraindications:
    • History of nephrolithiasis
    • Elevated urine uric acid level
    • Existing renal disease
    • Less effective in elderly patients

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Description

This quiz covers the causes of gout, focusing on uric acid metabolism and the effects of monosodium urate crystals in the body. It also highlights various treatments, including drug therapy for acute gouty arthritis and methods for lowering uric acid levels. Test your knowledge on the medications used and their mechanisms of action.

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