musculoskeletal Flashcards

1
Q

describe osteomyelitis

A

bacteria infection of medullary bone

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2
Q

most common cause for osteomyelitis (pathogen)

A

staph aureas

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3
Q

This is an infection of the bone that is caused by drug users

A

Exogenous osteomyelitis

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4
Q

What are some examples of exogenous osteomyelitis

A

open fractures, surgery, penetrating wounds, drug users

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5
Q

What is another name for hematogenous osteomyelitis. Describe

A

Endogenous, when infected bone starts from inside-out

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6
Q

What is one cause of an endogenous osteomyelitis

A

bacteria carried in the bloodstream from a site of infection

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7
Q

Would a foot ulcer caused by diabetes be an example of an exogenous or endogenous osteomyelitis?

A

Exogenous

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8
Q

fixation of the root filled tooth that causes osteomyelitis would be an example of endogenous or exogenous?

A

endogenous

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9
Q

most common sites for an endogenous osteomyelitis are:

A

spine, vertebrae and small bones

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10
Q

Describe the pathophys. of osteomyelitis

A

Its caused by an inflammatory response which creates pus that extends out toward canal, compressing vascular supply, thrombosis eventually leading to necrosis/abscess formation

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11
Q

In sickle cell anemic patients whats the most common pathogen causing osteomyelitis

A

salmonella

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12
Q

How would u distinguish btw exogenous and endogenous osteomyelitis

A

Exogenous-fever, swelling, exudate/abscess and lymphadenopathy vs. endogenous-anorexia, wt. loss, malaise and gradual fever.

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13
Q

how would u treat osteomyelitis

A

IV antibiotics and debridement

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14
Q

what tests would u order for osteomyelitis. What’s one thing to consider when doing it…

A

CT scan, MRI or bone scan… sometimes it doesn’t show up until 2 wks.

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15
Q

define mycotic infection of bone

A

usually a secondary infection from another organ- often in the form of a fungi

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16
Q

how would u treat candidiasis osteomyelitis and coccidioidomycosis

A

oral azole antifungals

17
Q

this pathogen often causes monoarticular arthritis of the knee/hip or hands/wrists; almost always from primary lung or lymph

A

mycobacterium tuberculous

18
Q

This bone infection follows GU or GI infection that distorts immune response, resulting in asymmetric sterile osteoarthrits

A

Reiter’s Syndrome or reactive arthritis

19
Q

How would a pt present with Reiter’s syndrome (Reactive Arthritis)

A

painful, swollen toes, fingers, and heels; an asymmetrical sterile osteoarthritis following a GU or GI infection.

20
Q

septic arthritis is most commonly caused by which pathogen

A

staph. aureas