gouty arthritis
TRANSCRIPT
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Purine synthesis
Body purine nucleotides
Purines
Uric acid Tissue nucleic acids
Intestinal excretion
Renal excretion
Uric Acid Synthesis and Elimination
Dietary purine
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ETYMOLOGY
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Term Definition
Gout Derived from the Latin word gutta which means “a drop”
Gouty arthritis refers to a form of arthritis caused by deposits of needle-like crystals of uric acid.
Pseudogout deposits are made up of calcium phosphate crystals, not uric acid.
Purines are protein components in foods that are found commonly in Dark fillet fish (mackerel, anchovies, sardines, herring and fish roe), Peanuts, Alcohol, Dairy products (milk, ice cream, cottage cheese)
Abarticular referring to gout that occurs in structures other than joints
Podagra gout of the great toe joint.
Uric acid the chemical metabolite of purines.
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Anton van Leeuwenhoek described the microscopic appearance of uric acid crystals in 1679. Spiked rods of uric
acid (MSU) crystals photographed under a microscope with polarized light from a synovial fluid sample.
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The Tyrannosaurus rex specimen known as "Sue" appears to have suffered from gout.
Colchicum was brought to America by Benjamin Franklin; Franklin suffered from gout himself and had written humorous doggerel about the disease during his stint as Envoy to France.
Gout is accurately diagnosed through the identification of characteristic crystals.
Uric acid results from the breakdown of purines. Purines are part of all human tissue and found in many foods
In humans, the upper end of the normal range is 360 µmol/L (6 mg/dL) for women and 400 µmol/L (6.8 mg/dL) for men.
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Stages of Gouty ArthritisStages of Gouty Arthritis
CausesCauses
Risk FactorsRisk Factors
ETiology
Classifications of Gouty ArthritisClassifications of Gouty Arthritis
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ETiology
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M:F = 20:1 Overproduction of uric acid Abnormality of renal urate excretion
Overconsumption of purine-rich foods
Heredity
Use of diuretics
alcohol consumption
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ETiology
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PATHO
of
Gout
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Underexcretion of uric acid
Overproductionof uric acid
Crystals in the synovial fluid Podagra
Hyperuricemia
Kidney stones
Chemotactic factors, lysosomal enzymes, PGE2, LTB 4, IL1&6
Formation MSU crystal
Responding cellsNeutrophils, leukocytes, monocytes, fibroblast,
synoviocytes, renal cells
Tissue damage
Inflammation
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Manifestations
• Sudden onset of severe pain in great toe or occasionally the heel, elbow, ankle, wrist and fingers
• >Hot, red and tender joints• >Intense, intolerable pain• >Chills, fever
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Nursing Diagnosis
1.Acute pain r/t stimulations of free nerve endings 2 to urate crystals deposits in joints
2.Activity intolerance r/t acute attack of inflamed joints
3. Disturbed body image r/t joint deformity.
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Diagnosis
Synovial fluid analysis
Blood test
Differential
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Serum analysis
• elevated serum urate levels• > 800 mg/dl
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white blood cell count
• elevated• >recurrent attacks of acute
inflammatory arthritis• >accumulation of urate crystals in
the form of tophaceous deposits• >uric acid nephrolithiasis• >Martel's Sign or 'rat bite sign‘
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