Mehlman/UW reactive/post trauma arthritis/synovial fluid normal Flashcards

1
Q

M. Reactive. CP?

A

Classically presents as triad of
1) urethritis or abdominal infection
2) polyarthritis
3) “eye-itis” (i.e., conjunctivitis, episcleritis, or anterior uveitis).

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2
Q

M. Reactive. CP.
Classically presents as triad of
….
2) polyarthritis
3) “eye-itis” (i.e., conjunctivitis, episcleritis, or anterior uveitis).

A

1) urethritis or abdominal infection

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3
Q

M. Reactive. CP.
Classically presents as triad of
1) urethritis or abdominal infection
…..
3) “eye-itis” (i.e., conjunctivitis, episcleritis, or anterior uveitis).

A

2) polyarthritis

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4
Q

M. Reactive. CP.
Classically presents as triad of
1) urethritis or abdominal infection
2) polyarthritis
….

A

3) “eye-itis” (i.e., conjunctivitis, episcleritis, or anterior uveitis).

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5
Q

M. cause of reactive?

A

CHLAMYDIA

gonoccus DOES NOT cause reactive on usmle

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6
Q

M. what viral can cause reactive?

A

Rubella
Hep B and C

also Yersinia

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7
Q

M. reactive part of what genetic alteration?

A

Part of HLA-B27 constellation (PAIR).

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8
Q

M. post-traumatic arthritis. CP?

sito nera lapuose, tik cia.

A

Pain in joint that can present soon, or many years after, injury, where other DDx are ruled out.

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9
Q

M. post-traumatic arthritis. case on 2CK.

case where it sounds like patellar tendonitis (i.e. 2 years of knee pain, first worsened with basketball, but then progresses to more constant pain), but then they go on to say that patient had fracture to proximal tibia 30 year ago and has varus deformity of the knee.

ANSWER - traumatic arthritis, not patella tendonitis.

A

the implication is that the etiology for patient’s arthritis is ultimately linked to the varus deformity from the prior injury

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10
Q

UW. Synovial fluid analysis.
Appearance in normal?

A

Clear

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11
Q

UW. Synovial fluid analysis.
WBC in normal?

A

<200

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12
Q

UW. Synovial fluid analysis.
PMNs in normal?

A

<25 proc.

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13
Q

UW. Synovial fluid analysis.
Appearance in non-inflammatory (eg OA)?

A

clear

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14
Q

UW. Synovial fluid analysis.
WBC in non-inflammatory (eg OA)?

A

200 - 2000

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15
Q

UW. Synovial fluid analysis.
PMNs in non-inflammatory (eg OA)?

A

25 proc.

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16
Q

UW. Synovial fluid analysis.
Appearance in inflammatory (crystals, RA)?

A

translucent or opaque

17
Q

UW. Synovial fluid analysis.
WBCs in inflammatory (crystals, RA)?

A

2000 - 100 000

18
Q

UW. Synovial fluid analysis.
PMNs in inflammatory (crystals, RA)?

A

Often >50 proc.

19
Q

UW. Synovial fluid analysis.
Appearance septic joint?

A

Opaque

20
Q

UW. Synovial fluid analysis.
WBCs septic joint?

A

50 k - 150k

21
Q

UW. Synovial fluid analysis.
PMNs septic joint?

A

> 80 - 90 proc.