SYNOVIAL FLUID Flashcards

1
Q

def? Fluid within joint cavities

A

synovial fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what changes are examined for in synovial fluid

A

septic, aseptic, or degenerative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

true or false: synovial fluid Provides nutrients to articular cartilage

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

true or false: Reduces shock of joint compression during strenuous activities

A

true

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

how is synovial fluid formed

A

Ultrafiltrate of plasma across synovial membrane

Synoviocytes secrete hyaluronate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is normal amount of synovial fluid in the knee cavity

A

less than 3.5 mL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

true or false: synovial fluid in the knee clots

A

false

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the needle aspiration for synovial fluid called

A

arthrocentesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

true or false: synovial fluid is not STAT

A

false

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what should not be used for crystal analysis in synovial fluid

A

powdered anticoagulants

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the normal appearance of synovial fluid

A

colorless to pale yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what does yellow synovial fluid mean

A

inflammation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what does milky synovial fluid mean

A

crystals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what does bloody synovial fluid mean

A

hemorrhagic arthritis

traumatic aspiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what does greenish synovial fluid mean

A

bacterial infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is the normal amount of viscosity of synovial fluid

A

4-6 cm string

17
Q

what does turbid synovial fluid mean

A

WBC
cell debris
fibrin

18
Q

what gives synovial fluid viscosity

A

polymerization of hyaluronic acid

19
Q

what happens to hyaluronic acid in arthritis pt

A

polymerization decreases

20
Q

true or false: less than 2000/uL RBC is normal in synovial fluid

A

true

21
Q

what is the normal amount of WBC in synovial fluid

A

less than 200/uL

22
Q

what condition has increase WBC in synovial fluid

A

bacterial arthritis

23
Q

what is the most common WBC in synovial fluid

A

monocytes or macrophages

24
Q

if there are more than 80% neutrophils in synovial fluid what does this indicate

A

bacterial arthristis

urate gout

25
Q

what crystals are in synovial fluid of gout pt

A

Monosodium urate crystals

26
Q

what crystals are in synovial fluid of degenerative arthritis pt

A

Calcium pyrophosphate crystals

27
Q

what crystals are in synovial fluid of chronic arthritic inflammation pt

A

cholesterol crystals

28
Q

how are crystals prepared for examination under a light microscope

A

wet prep

wright stained

29
Q

what tool examines crystals based on the velocity of light rays passing through the crystal’s grain

A

Quartz Red Line Compensator

30
Q

when monosodium urate crystals are parallel to the axis quartz red line compensator what color are they

A

yellow

31
Q

when monosodium urate crystals are perpendicular to the axis quartz red line compensator what color are they

A

blue

32
Q

def? Tiny, needle-like crystals

A

hydroxyapatite

33
Q

what kind of crystals are seen months after steroid injections

A

corticosteroids

34
Q

true or false: All synovial fluid samples should be cultured

A

true