ortho Flashcards

1
Q

which surgery is most associated with BCIS

A

hip arthroplasty

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2
Q

mma in systemic circulation causes tachycardia or bradycardia

A

brady & dyrsthymias

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3
Q

mma in systemic circulation does what to BP

A

hypo

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4
Q

mma in systemic circulation does what to SVR

A

dec

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5
Q

mma does what to PVR

A

inc

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6
Q

first signs of BCIS in awake person under regional

A

dyspnea and AMS

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7
Q

first sign of BCIS in general

A

decreased ETCO2

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8
Q

tx for BCIS

A

100% FIO2, IV hydration, neo for hOtn

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9
Q

greatest risk for fat embolism is within ___

A

72h

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10
Q

risk factors for fat embolism

A

pelvic fx, femoral fx, and instrumentation of femoral medullary canal

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11
Q

triad of FES

A

resp insufficiency (hypoxemia, bilateral infiltrates on CXR, ARDS), neurological involvement (confusion to coma), petechial rash (skin of neck and axilla, oral mucose, conjunctiva)

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12
Q

cells distal to the tourniquet shift to ____ metabolism

A

anaerobic

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13
Q

max inflation time of tourniquet

A

2h

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14
Q

premature release of bier block results in ___ or ___

A

sz or cardiac arrest

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15
Q

releasing the tourniquet causes ETCO2 to ____

A

rise

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16
Q

releasing the tourniquet causes core body temp to ____

A

decrease

17
Q

releasing the tourniquet causes BP to ____ and HR to ____

A

decrease, increase

18
Q

releasing the tourniquet causes SvO2 to ____

A

decrease

19
Q

releasing the tourniquet causes what acid base imbalance?

A

metabolic acidosis

20
Q

tourniquet pain is usually transmitted by __ fibers

A

c (slow pain)

21
Q

under GA, tourniquet pain manifests as ___ and ____

A

htn, tachycardia. give esmolol

22
Q

bone cement is an ___ reaction

A

exothermic. releases heat

23
Q

tissue thromboplastin release may cause platelet _____, micro_____, and CV ____

A

aggregation, microthrombus (lungs) and CV instability

24
Q

BCIS embolization is most frequent during

A

prosthetic insertion

25
Q

upper extremity should be ___ torr, lower extremity should be ___ torr

A
    1. want 100 over systolic
26
Q

tourniquet pain is less common in ___ anesthesia

A

regional

27
Q

placement of epidural needle or catheter should not be undertaken within ___ hours of a SQ heparin or within ___h of LMWH

A

6-8, 12-24

28
Q

stop plavix ___ days

A

7

29
Q

stop xaralto __ hours

A

48-72

30
Q

restrictions on aspirin?

A

none

31
Q

which location of fracture has the most blood loss?

A

subtrochanteric, intertrochanteric

(followed by base of fem neck, transcervical, sub capital) lower=bleed more

32
Q

embolic event most frequent at ___ of ___ component

A

insertion of femoral component

33
Q

highest rate of DVT is with what ortho procedure

A

total knee arthroplasty

34
Q

avoid ___ block in people with resp problems

A

interscalene