Book: Synovial Fluid Flashcards

1
Q

The functions of synovial fluid include all of the following except:

A. Lubrication for the joints
B. Removal of cartilage debris
C. Cushioning joints during jogging
D. Providing nutrients for cartilage

A

Removal of cartilage debris

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2
Q

The primary function of synoviocytes is to:

A. Provide nutrients for the joints
B. Secrete hyaluronic acid
C. Regulate glucose filtration
D. Prevent crystal formation

A

Provide nutrients for the joints

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3
Q

Which of the following is not a frequently performed test
on synovial fluid?

A. Uric acid
B. WBC count
C. Crystal examination
D. Gram stain

A

Uric acid

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4
Q

The procedure for collecting synovial fluid is called:

A. Synovialcentesis
B. Arthrocentesis
C. Joint puncture
D. Arteriocentesis

A

Arthrocentesis

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5
Q

Match the following disorders with their appropriate group:

A. Noninflammatory
B. Inflammatory
C. Septic
D. Hemorrhagic

Gout
Neisseria gonorrhoeae infection
Systemic lupus erythematosus
Osteoarthritis
Hemophilia
Rheumatoid arthritis
Heparin overdose

A

B
C
B
A
D
B
D

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6
Q

Normal synovial fluid resembles:

A. Egg white
B. Normal serum
C. Dilute urine
D. Lipemic serum

A

Egg white

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7
Q

Before testing, very viscous synovial fluid should be
treated with:

A. Normal saline
B. Hyaluronidase
C. Distilled water
D. Hypotonic saline

A

Hyaluronidase

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8
Q

Addition of a cloudy, yellow synovial fluid to acetic acid
produces a/an:
A. Yellow-white precipitate
B. Easily dispersed clot
C. Solid clot
D. Opalescent appearance

A

Easily dispersed clot

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9
Q

Which of the following could be the most significantly
affected if a synovial fluid is refrigerated before testing?

A. Glucose
B. Crystal examination
C. Mucin clot test
D. Differential

A

Crystal examination

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10
Q

The highest WBC count can be expected to be seen with:

A. Noninflammatory arthritis
B. Inflammatory arthritis
C. Septic arthritis
D. Hemorrhagic arthritis

A

Septic arthritis

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11
Q

When diluting a synovial fluid WBC count, all of the
following are acceptable except:

A. Acetic acid
B. Isotonic saline
C. Hypotonic saline
D. Saline with saponin

A

Acetic acid

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12
Q

The lowest percentage of neutrophils would be seen in:

A. Noninflammatory arthritis
B. Inflammatory arthritis
C. Septic arthritis
D. Hemorrhagic arthritis

A

Noninflammatory arthritis

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13
Q

All of the following are abnormal when seen in synovial fluid except:

A. Neutrophages
B. Ragocytes
C. Synovial lining cells
D. Lipid droplets

A

Synovial lining cells

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14
Q

Synovial fluid crystals that occur as a result of purine
metabolism or chemotherapy for leukemia are:

A. Monosodium urate
B. Cholesterol
C. Calcium pyrophosphate
D. Apatite

A

Monosodium urate

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15
Q

Synovial fluid crystals associated with inflammation in dialysis patients are:

A. Calcium pyrophosphate dihydrate
B. Calcium oxalate
C. Corticosteroid
D. Monosodium urate

A

Calcium oxalate

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16
Q

Crystals associated with pseudogout are:

A. Monosodium urate
B. Calcium pyrophosphate dihydrate
C. Apatite
D. Corticosteroid

A

Calcium pyrophosphate dihydrate

17
Q

Synovial fluid for crystal examination should be examined as a/an:
A. Wet preparation
B. Wright’s stain
C. Gram stain
D. Acid-fast stain

A

Wet preparation

18
Q

Crystals that have the ability to polarize light are:

A. Corticosteroid
B. Monosodium urate
C. Calcium oxalate
D. All of the above

A

All of the above

19
Q

In an examination of synovial fluid under compensated
polarized light, rhomboid-shaped crystals are observed. What color would these crystals be when aligned parallel to the slow vibration?

A. White
B. Yellow
C. Blue
D. Red

A

Blue

20
Q

If crystals shaped like needles are aligned perpendicular to the slow vibration of compensated polarized light, what color are they?

A. White
B. Yellow
C. Blue
D. Red

A

Blue

21
Q

Negative birefringence occurs under red-compensated polarized light when:

A. Slow light is impeded more than fast light
B. Slow light is less impeded than fast light
C. Fast light runs against the molecular grain of the
crystal
D. Both B and C

A

Slow light is less impeded than fast light

22
Q

Synovial fluid cultures are often plated on chocolate agar to detect the presence of:

A. Neisseria gonorrhoeae
B. Staphylococcus agalactiae
C. Streptococcus viridans
D. Enterococcus faecalis

A

Neisseria gonorrhoeae

23
Q

The most frequently performed chemical test on synovial fluid is:

A. Total protein
B. Uric acid
C. Calcium
D. Glucose

A

Glucose

24
Q

Which of the following chemistry tests can be performed on synovial fluid to determine the severity of RA?

A. Glucose
B. Protein
C. Lactate
D. Uric acid

A

Lactate

25
Q

Serologic tests on patients’ serum may be performed to
detect antibodies causing arthritis for all of the following disorders except:

A. Pseudogout
B. Rheumatoid arthritis
C. Systemic lupus erythematosus
D. Lyme arthritis

A

Pseudogout