P26 - Synovial Fluid Flashcards

1
Q

thixotropism (3)

A
  • formation of semi-solid gel when synovia cools
  • semi-solid gel becomes liquid again upon shaking
  • due to presence of mucin
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2
Q

physical characteristics of synovia

A
  • color
  • transparency
  • viscosity
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3
Q

biochemical analysis of synovia

A
  • protein concentration

- mucin clot test

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4
Q

TNCC of synovia

A
  • diluent (saline not acetic acid)

- thixotropism may prevent accurate dilution

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5
Q

pink color of synovia

A
  • pathologic hemorrhage or iatrogenic
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6
Q

deep yellow of synovia

A
  • bilirubin formation in chronic hemorrhage
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7
Q

hazy or cloudy of synovia

A
  • inflammatory cells
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8
Q

mucin clot test collect in what tube

A
  • red top
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9
Q

causes of poor viscosity

A
  • hyaluronidase-producing bacteria
  • inflammation
  • dilution
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10
Q

collect synovia in what type of tube

A
  • EDTA - prevents fibrin clots
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11
Q

windrow formation

A
  • because of the mucin in the synovia
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12
Q

cytological features of synovia

A
  • windrow formation

- mononuclear cells (95%)

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13
Q

appearance of hemarthrosis

A
  • bloody
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14
Q

protein concentration of hemarthrosis

A
  • increased
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15
Q

TNCC of hemarthrosis

A
  • increased
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16
Q

viscosity of hemarthrosis

A
  • poor
17
Q

cytologic smear of hemarthrosis

A
  • many RBCs
  • platelets are absent
  • many erythrophages
  • many hemosiderophages
18
Q

acute arthritis protein concentration and TNCC

A
  • increased
19
Q

acute arthritis viscosity

A
  • lack of windrowing
20
Q

acute arthritis cytologic smear

A
  • neutrophils (degenerate; non-degenerate)
21
Q

sterile arthritis contains what kind of neutrophils

A
  • non-degenerate
22
Q

septic arthritis contains what kind of neutrophils

A
  • degenerate
23
Q

chronic arthritis also known as

A
  • degenerate joint disease (DJD)
24
Q

protein concentration and TNCC of chronic arthritis

A
  • normal or slightly increased
25
Q

chronic arthritis viscosity

A
  • poor

- no windrowing

26
Q

chronic arthritis cytologic smear

A
  • mononuclear

- lupus erythematous

27
Q

chronic arthritis causes

A
  • chronic trauma
  • anatomic disorders
  • osteoarthritis