Shock Flashcards

1
Q

Define shock

A

Life threatening, circulatory failure, hypoxia, multiorgan failure

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2
Q

Clinical signs of shock

A

tachycardia
poor urine output
confusion/reduced GCS
cold- delayed capillary refill, mottled appearance

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3
Q

Two tests that are abnormal in shock

A

deranged LFTs
raised lactate

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4
Q

Equation for blood pressure?

A

CO X systemic vascular resistance

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5
Q

Equation for CO?

A

SV x HR

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6
Q

How to assess systemic arterial resistance?

A

peripheral pulses
delayed capillary refill times
sats probe not picking up reading due to poor perfusion

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7
Q

List three types of shock

A

obstructive
distributive
anaphylactic
cardiogenic

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8
Q

What is distributive shock?

A

severe peripheral vasodilation problem

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9
Q

List three causes of distributive shock

A

septic shock
neurogenic shock
endocrine
drug or toxin-induced shock

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10
Q

What is SIRS?

A

=systemic inflammatory response syndrome
inflammatory response in reaction to severe body insult

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11
Q

List two causes of SIRS

A

pancreatitis, burns, air/fluid/fat embolism
ROSC?= return of spontaneous cardiac output

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12
Q

list three haemorrhageic causes of hypovolaemic shock

A

UGIB/LGIB
Post-op
postpartum, vaginal haemorrhage
AAA
Ruptured tumour, abscess, fistulae,
Trauma- blunt or penetrating

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13
Q

List two non haemorrhagic causes of hypovolaemic shock

A

GI losses
burns
renal
third spacing- leaky capillaries e.g. infection, ascites, pancreatitis

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14
Q

List two types of cardiogenic shock= poor pump function

A

ischaemia
arrhythmia
mechanical- valvular defects e.g. aortic stenosis

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15
Q

List one type of RV after load obsturctive shock

A

PE
pulmonary HTN

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16
Q

List one type of RV preload obstructive shock

A

tension pneumothorax
pericardial tamponade

17
Q

Difference between PE and massive PE?

A

massive PE- BP <90 systolic, therefore stable vs unstable

18
Q

Blood tests for PE?

A

D Dimer
Troponin- right heart strain

19
Q

Investigations for PE

A

CTPA

20
Q

What type of shock is anaphylaxis?

A

distributive

21
Q

Management of anaphylaxis

A

adrenaline
((corticosteroids
antihistamines
oxygen))
adrenaline infusion if repeated doses of adrenaline doesn’t work

22
Q

List two respiratory signs in anaphylaxis

A

tachyopnoeic
wheeze
stridor

23
Q

bloods in UGI?

A

U+E’s
FBC

24
Q

Target Hb for UGI bleed?

A

80

25
Q

Initial management of UGI caused by varices

A

terlipressin
wide bore IV access, packed RBCs

26
Q

Patient with variceal bleeding is unstable, where should they go after ED?

A

endoscopy or surgeons

27
Q

Blood transfusion reactions?

A

tachycardia
change in temperature
urticarial rash