Shock + Flashcards

1
Q

components of stroke volume

A

Preload, Myocardial contractility, Afterload

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Venous capacitance, Volume status, Venous flow

  • Preload
  • Myocardial contractility
  • Afterload
A
  • Preload
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Mean venous systemic pressure- right atrial pressure

  • Preload
  • Myocardial contractility
  • Afterload
A
  • Preload
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Peripheral vascular resistance

  • Preload
  • Myocardial contractility
  • Afterload
A
  • Afterload
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

in shock blood flow is preserved to

A

kidneys, heart and brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

progression of vasoconstriction in shock

A

Progressive vasoconstriction of cutaneous, muscular and visceral circulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Poorly oxygenated cells will shift to anaerobic metabolism, hence formation of

A

lactic acid leading to metabolic acidosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

most common type of shock

A

HEMORRHAGIC SHOCK

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

suspect blunt cardiac injury in rapid deceleration

a. Cardiogenic
b. Cardiac tamponade
c. Tension pneumothorax
d. Neurogenic shock
e. Septic shock

A

a. Cardiogenic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

tachycardia, Becks triad, insufficient response to fluid

a. Cardiogenic
b. Cardiac tamponade
c. Tension pneumothorax
d. Neurogenic shock
e. Septic shock

A

b. Cardiac tamponade

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

acute respiratory distress, subcutaneous emphysema, absent unilateral breath sounds, hyperesonance in percussion and tracheal shift

a. Cardiogenic
b. Cardiac tamponade
c. Tension pneumothorax
d. Neurogenic shock
e. Septic shock

A

c. Tension pneumothorax

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

brainstem injuries; hypotension without tachycardia and cutaneous vasoconstriction

a. Cardiogenic
b. Cardiac tamponade
c. Tension pneumothorax
d. Neurogenic shock
e. Septic shock

A

d. Neurogenic shock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

can occur in patient’s arrival to ED is delayed for several hours

a. Cardiogenic
b. Cardiac tamponade
c. Tension pneumothorax
d. Neurogenic shock
e. Septic shock

A

e. Septic shock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

normal adult blood volume is what percent of body weight?

A

7% of body weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

normal pediatric blood volume is what percent of body weight?

A

8-9% of body weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Equation for male EBW

A

50 kg + 2.3 kg for every inch over 5 feet

Male: 50 kg + 2.3 kg for every inch over 5 feet
Female: 45.5 kg + 2.3 kg for every inch over 5 feet
1-11 months: (0.5 x age in months) + 4
1-5 years: (2 x age in years) + 8
6-12 years: (3 x age in years) + 7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Equation for female EBW

A

45.5 kg + 2.3 kg for every inch over 5 feet

Male: 50 kg + 2.3 kg for every inch over 5 feet
Female: 45.5 kg + 2.3 kg for every inch over 5 feet
1-11 months: (0.5 x age in months) + 4
1-5 years: (2 x age in years) + 8
6-12 years: (3 x age in years) + 7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Equation for 1-11 months EBW

A

(0.5 x age in months) + 4

Male: 50 kg + 2.3 kg for every inch over 5 feet
Female: 45.5 kg + 2.3 kg for every inch over 5 feet
1-11 months: (0.5 x age in months) + 4
1-5 years: (2 x age in years) + 8
6-12 years: (3 x age in years) + 7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Equation for 1-5 years EBW

A

(2 x age in years) + 8

Male: 50 kg + 2.3 kg for every inch over 5 feet
Female: 45.5 kg + 2.3 kg for every inch over 5 feet
1-11 months: (0.5 x age in months) + 4
1-5 years: (2 x age in years) + 8
6-12 years: (3 x age in years) + 7

20
Q

Equation for 6-12 years EBW

A

: (3 x age in years) + 7

Male: 50 kg + 2.3 kg for every inch over 5 feet
Female: 45.5 kg + 2.3 kg for every inch over 5 feet
1-11 months: (0.5 x age in months) + 4
1-5 years: (2 x age in years) + 8
6-12 years: (3 x age in years) + 7

21
Q

(< 15%)

Class I Hemorrhage
Class II
Class III
Class IV

A

Class I Hemorrhage

22
Q

the condition of an individual who has donated 1 unit of blood

Class I Hemorrhage
Class II
Class III
Class IV

A

Class I Hemorrhage

23
Q

(15- 30%)

Class I Hemorrhage
Class II
Class III
Class IV

A

Class II

24
Q

Uncomplicated hemorrhage for which crystalloid fluid resuscitation is required

Class I Hemorrhage
Class II
Class III
Class IV

A

Class II

25
Q

Tachycardia, tachypnea and decreased pulse pressure

Class I Hemorrhage
Class II
Class III
Class IV

A

Class II

26
Q

Subtle CNS changes: anxiety, fear, hostility

Class I Hemorrhage
Class II
Class III
Class IV

A

Class II

27
Q

(31 to 40%)

Class I Hemorrhage
Class II
Class III
Class IV

A

Class III

28
Q

which at least crystalloid infusion is required and most will blood products to reverse shock state

Class I Hemorrhage
Class II
Class III
Class IV

A

Class III

29
Q

marked tachycardia and tachypnea and measurable fall in systolic blood pressure

Class I Hemorrhage
Class II
Class III
Class IV

A

Class III

30
Q

significant changes in mental status

Class I Hemorrhage
Class II
Class III
Class IV

A

Class III

31
Q

what is classic sign of inadequate perfusion:

A

marked tachycardia and tachypnea, significant changes in mental status and measurable fall in systolic blood pressure

32
Q

(> 40%)

Class I Hemorrhage
Class II
Class III
Class IV

A

Class IV

33
Q

Blood transfusion is required

Class I Hemorrhage
Class II
Class III
Class IV

A

Class IV

34
Q

very narrow pulse pressure

Class I Hemorrhage
Class II
Class III
Class IV

A

Class IV

35
Q

Which is the most severe?

Class I Hemorrhage
Class II
Class III
Class IV

A

Class IV

36
Q

The most effective method of restoring CO, end-organ perfusion and tissue oxygenation is restoring VR to normal by

A

locating and stopping source the source of bleeding

37
Q

Most desirable sites for vascular access

A

forearms and antecubital veins

38
Q

initial warmed fluid bolus for adult

A

is 1 liter

39
Q

initial warmed fluid bolus for pediatric patients weighing less than 40 kg

A

20 ml/kg

40
Q

Early administration of blood products must be considered

Class I Hemorrhage
Class II
Class III
Class IV

A

Class III

Class IV

41
Q

adequate volume replacement for adult

A

0.5 ml/kg/hr (adult)

42
Q

adequate volume replacement for pedia

A

1 ml/kg/hr (pedia)

43
Q

adequate volume replacement for infant

A

2ml/ kg/ hr (under 1)

44
Q

If crossmatched blood is unavailable, what is indicated for exsanguinating hemorrhage?

A

type O PRBC

45
Q

What blood replacement is preferred for female of childbearing age?

A

Rh- negative PRBC

46
Q

Define massive transfusion

A

as > 10 units of PRBC within the first 24 hours of admission or more than 4 units in 1 hour

47
Q

what can be given in the first 3 hours of hemorrhagic shock to improve survival

what is dose?

A

Tranexamic Acid

First dose: 1gram over 10 minutes
Follow-up dose: 1 gram over 8 hours