T1 - Shock (Josh) Flashcards Preview

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Flashcards in T1 - Shock (Josh) Deck (13):
1

Define Shock:

Widespread abnormal cellular metabolism

Oxygenation and Tissue perfusion needs not met

Whole body response

Any problem impairing O2 delivery to tissues and organs can start shock, lead to life-threatening emergency

2

Stages of Shock:

What happens in Initial Stage?

MAP drops 10 mmHg from baseline

Effective compensation (slight vasoconstriction

Increased HR, RR

O2 gets to vital organs

3

Stages of Shock:

What happens in Nonprogressive (Compensatory) Stage?

MAP drops 10 - 15 mmHg from baseline

Kidney and Hormonal adaptive mechanisms activated

Tissue Hypoxia in NONVITAL organs (ex: gut)

Acidosis (drop in pH) and Hyperkalemia

4

Stages of Shock:

What happens in the Progressive (Intermediate) Stage?

MAP drops 20 mmHg from baseline

VITAL organs develop hypoxia

Emergency

***conditions causing shock must be corrected within 1 HOUR of progressive stage onset

5

Stages of Shock:

What happens in the Refractory (Irreversible) Stage?

Excessive Cell and Organ damage

Multi-system Organ failure

Decrease in pH

DEATH

6

What are the different classifications of shock?

Hypovolemic

Cardiogenic (direct pump failure)

Distributive

Obstructive (indirect pump failure)

7

What are some causes of Hypovolemic Shock?

Hemorrhage

Dehydration

8

What are some causes of Cardiogenic Shock?

MI

Cardiac Arrest

Dyshythmia

9

What are some causes of Distributive Shock?

Neural induced

Chemical induced

10

What are some causes of Obstructive Shock?

Pericarditis

Caridac Tamponade

Pulmonary Embolis

11

Which type of Shock is Burn Shock?

a combo of Hypovolemic and Distributive

12

What is the purpose of prescribing the following two meds?

- Milrinone

- Dobutamine

enhance contractility

13

Slide 17

Slide 17