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MSS > Labs > Flashcards

Labs Flashcards

1
Q

Name the CD marker associated with ankylosing spondylitis

A

HLA-B27

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2
Q

Describe the rashes of cutanous lupus erythematous

A
  • Malar rash for acute
  • Photosensitivity rash for subacute
  • Discoid rash for chronic
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3
Q

What do autoantibodies in sle target?

A

Nuclear, dsDNA & Smith

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4
Q

What cancer could RA cause?

A

Lymphoma

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5
Q

What anemia could SLE cause?

A

Autoimmune hemolytic

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6
Q

Age of ankylosis spondylitis onset?

A

20-30 years

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7
Q

What skin disease could ankylosing spondylitis cause?

A

Psoriasis

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8
Q

What causes urogenital reactive arthritis?

A

Chlamydia trachomatis

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9
Q

What causes gastrointestinal reactive arthritis?

A

Salmonella & shigella

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10
Q

Most common causing pathogen of septic arthritis in adolescents?

A

N. Gonorrhea

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11
Q

Most common causing pathogen of septic arthritis in sickle cell patients?

A

Salmonella

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12
Q

Most common causing pathogen of septic arthritis in humant bite?

A

Eikenella

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13
Q

Most common causing pathogen of septic arthritis?

A

S. Aureus & S. Viridans

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14
Q

What is radiofrequency ablation used for?

A

Osteoid osteoma

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15
Q

What is botox injection indicated for?

A

Cerebral palsy and CVA

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16
Q

Side effects of contrast material used in radiology

A

Nephropathy & allergic rxn

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17
Q

When is CT used?

A

More bone details (fracture)

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18
Q

When is MRI used?

A

Soft tissue involvement

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19
Q

When is US used ?

A

Tendon tears, dynamic pathologies and in injection of needle into joint

20
Q

When is nuclear medicine studies used?

A

Tumors and infections

21
Q

What is fluroscopy?

A

An x-ray video

22
Q

When is radiology used?

A

6 Is 👁️
2 Ds 🍆
And a tumor

23
Q

What is an avulsion fracture?

A

A part of the bone broken off due to tendon injury (pulls the bone off) happens in pediatric age more

24
Q

Stress fracture vs insufficiency fracture

A

In stress it’s a normal bone with abnormal stress and the opposite for insufficiency

25
Q

What is bong ring phenomenon?

A

Fracture to one part of the bony ring results in fracture to the opposite part in that ring (pelvis,shoulder,mandible)

26
Q

What to do if you find a fat pad sign?

A

Look for fracture and order a CT if you can’t find it

27
Q

MRI vs US in soft tissue?

A

MRI is for deeper issues

28
Q

What is light bulb sign?

A

Humerus appears like a light bulb in posterior dislocation

29
Q

What view is best for post. Humerus dislocation?

A

Lateral

30
Q

What view is best for clavicular dislocation?

A

Weight-bearing

31
Q

Which part of skin are histamines found?

A

Dermis

32
Q

What color are tinea capitis, erythrasma and pseudomonas infection in wood’s lamp?

A

Tine and pseudomona are green
Erythrasma is coral pink

33
Q

When is tzanck smear used?

A

Vesiculobuous rash

34
Q

What is patch test used for?

A

DTH

35
Q

Red flags of orthopedics

A

Neurological deficits and B symptoms

36
Q

What does the mobility of mass indicate?

A

Immobility is malignant

37
Q

Name the following tests:

Meniscus
ACL
PCL
Patella
Shoulder (ant instability)
DDH

A

Mackmury & apley compression
Lachman and ant drawer
Post drawer
Apprehension & ballottement
Aprehension
Barlow and ortolani

38
Q

Which structure is always pictured laterally?

A

Knee

39
Q

What is a bone scan used for?

A

Assessing infections and metastasis

40
Q

What injury causes giving way?

A

Posteriolateral branch of ACL (controls stability)

41
Q

Name the ottawa rules (x ray for knee injury)

A

Over 55
Tenderness in fibular head
Tenderness in patella
Ability to flex 90°
Weight- bearing Ability

42
Q

What collagen type are ligaments and aurticular surfaces ?

A

Ligaments = 1
Articular surfaces = 2

43
Q

Why does pseudomonas arigonosa green on agar?

A

Pyocyanin

44
Q

Vector and disease of onchocerca volvulus?

A

Black fly, river blindness

45
Q

Vector and disease of Loa loa?

A

Deer fly, eye worm

46
Q

Vector of dracunculus medinesis and infective stage

A

Cyclops and larvea

MSS (9 decks)

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