Stras: Synovial Fluid

Question 1

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

Answer 1

B. Removal of cartilage debris

Question 2

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

Answer 2

B. Secrete hyaluronic acid

Question 3

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

Answer 3

A. Uric acid

Question 4

The procedure for collection of synovial fluid is called:
A. Synovialcentesis
B. Arthrocentesis
C. Joint puncture
D. Arteriocentesis

Answer 4

B. Arthrocentesis

Question 5

Match the following disorders with their appropriate group:

Gout

Answer 5

Inflammatory

Question 6

Match the following disorders with their appropriate group:

N. gonorrhoeae infection

Answer 6

Septic

Question 7

Match the following disorders with their appropriate group:

Lupus erythematosus

Answer 7

Inflammatory

Question 8

Match the following disorders with their appropriate group:

Osteoarthritis

Answer 8

Noninflammatory

Question 9

Match the following disorders with their appropriate group:

Hemophilia

Answer 9

Hemorrhagic

Question 10

Match the following disorders with their appropriate group:

Rheumatoid arthritis

Answer 10

Inflammatory

Question 11

Match the following disorders with their appropriate group:

Heparin overdose

Answer 11

Hemorrhagic

Question 12

Normal synovial fluid resembles:
A. Egg white
B. Normal serum
C. Dilute urine
D. Lipemic serum

Answer 12

A. Egg white

Question 13

Powdered anticoagulants should not be used in tubes for synovial fluid testing because it interferes with:
A. Cell counts
B. Glucose tests
C. Crystal examination
D. Differentials

Answer 13

C. Crystal examination

Question 14

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

Answer 14

B. Easily dispersed clot

Question 15

To determine if a fluid is synovial fluid, it should be mixed with:
A. Sodium hydroxide
B. Hypotonic saline
C. Hyaluronidase
D. Acetic acid

Answer 15

D. Acetic acid

Question 16

The highest WBC count can be expected to be seen with:
A. Noninflammatory arthritis
B. Inflammatory arthritis
C. Septic arthritis
D. Hemorrhagic arthritis

Answer 16

C. Septic arthritis

Question 17

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

Answer 17

A. Acetic acid

Question 18

The lowest percentage of neutophils would be seen in:
A. Noninflammatory arthritis
B. Inflammatory arthritis
C. Septic arthritis
D. Hemorrhagic arthritis

Answer 18

A. Noninflammatory arthritis

Question 19

All of the following are abnormal when seen in synovial fluid except:
A. RA cells
B. Reiter cells
C. Synovial lining cells
D. Lipid droplets

Answer 19

C. Synovial lining cells

Question 20

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

Answer 20

A. Monosodium urate

Question 21

Synovial fluid crystals associated with inflammation in dialysis patients are:
A. Calcium pyrophosphate
B. Calcium oxalate
C. Corticosteroid
D. Monosodium urate

Answer 21

B. Calcium oxalate

Question 22

Crystals associated with pseudogout are:
A. Monosodium urate
B. Calcium pyrophosphate
C. Apatite
D. Corticosteroid

Answer 22

B. Calcium pyrophosphate

Question 23

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

Answer 23

A. Wet preparation

Question 24

Crystals that have the ability to polarize light are:
A. Corticosteroid
B. Monosodium urate
C. Calcium oxalate
D. All of the above

Answer 24

D. All of the above

Question 25

In an examination of synovial fluid under compensated polarized light, rhombic-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

Answer 25

C. Blue

Question 26

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

Answer 26

C. Blue

Question 27

Negative birefringence occurs under 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

Answer 27

D. Both B and C

Question 28

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

Answer 28

A. Neisseria gonorrhoeae

Question 29

The most frequently performed chemical test on synovial fluid is: A. Total protein B. Uric acid C. Calcium D. Glucose

Answer 29

D. Glucose

Question 30

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. Lupus erythematosus D. Lyme arthritis

Answer 30

A. Pseudogout

Question 31

Serologic testing of synovial fluid for fibrinogen and C-reactive protein is performed to: A. Determine clot formation B. Determine the amount of inflammation C. Detect osteoarthritis D. Diagnose rheumatoid arthritis

Answer 31

B. Determine the amount of inflammation