Gout Flashcards

1
Q

What is podagra?

A

Acute inflammation of the 1st MTP joint with swelling, erythema, and tenderness

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2
Q

What clinical situations would give rise to podagra?

A
  1. Gout (or other crystal deposition dz like calcium pyrophosphate)
  2. Infectious arthritis (acute and monoarticular)
  3. Trauma
  4. cellulitis
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3
Q

What clinical features distinguish gout from rheumatoid arthritis?

A

RA: multiple joints, occurring over a longer time period. Both have nodules, but RA nodules are soft but firm (like an unripe fruit or lymph node) while gout nodules (aka tophi) are hard pebbles

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4
Q

What clinical features distinguish gout from psoriatic arthritis?

A

Usually psoriatic arthritis will also show nail pitting or a rash

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5
Q

What clinical features distinguish gout from osteoarthritis?

A

Osteo:Can affect the 1st MTP alone, but acuity and severity make this unlikely

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6
Q

What test would you order in a patient with acute monoarticular arthritis?

A

ALWAYS ASPIRATE THE JOINT! Analyze the fluid for crystals and WBC and gram stain

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7
Q

If you suspect gout, and draw a low uric acid level, what does that tell you?

A

Nothing. It could still be gout because uric acid decreases during an acute attack. If it’s high, then it is helpful in solidifying diagnosis

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8
Q

When considering potential treatments for gout, what would you want to know about the patient?

A

Renal and liver function. Some treatments increase risk of nephrolithiasis

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9
Q

Can you diagnose septic arthritis through blood cultures?

A

No. you need arthrocentesis as well.

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10
Q

What other diagnostics would you want in a patient with podagra?

A

GET AN X-RAY! Make sure it’s not trauma

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11
Q

What do gout crystals look like?

A

yellow when parallel to polarized light. negatively birefringent (blue when perpendicular to polarized light)

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12
Q

What is pseudogout?

A

Calcium pyrophosphate crystals CPPD.

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13
Q

What do CPPD crystals look like?

A

rhomboid shaped with opposite colorization to polarized light (i.e. yellow when perpendicular, blue when parallel) called a positive birefringence. Also, crystals are duller

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14
Q

If you see no organisms on gram stain, what does this tell you?

A

Less likely to be infectious arthritis, but you should still do cultures of the fluid

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15
Q

What are the X ray findings in gout?

A

punched out erosions.

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16
Q

What are the causes of hyperuricemia?

A
Obesity
Aspiring
HCTZ
Ethanol
Fructose
17
Q

How do you treat acute gout?

A

NSAIDs in max dosing.

18
Q

What are contraindications to NSAIDs?

A

Impaired renal function, age, history of GI bleeding

19
Q

What do you treat gout with if not NSAIDs?

A

Colchicine. Give hourly or until diarrhea

20
Q

What is the safest option for treating acute gout in someone with CKD?

A

steroids

21
Q

How do you treat long term maintenance of gout?

A

allopurinol until serum uric acid is stop drinking alcohol, esp beer! Hops are bad
–>change in diet

22
Q

Should you treat asymptomatic hyperuricemia?

A

No.

23
Q

What long term therapy should help in gout?

A

Need to lower uric acid serum levels using allopurinol. Because changes in serum uric acid levels can precipitate a gout attack, need to prophylax in the first 1-6 months with colchicine.