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Shock
Shock surgery shelf exam
36
Medical
Post-Graduate
03/13/2013

Additional Medical Flashcards

 


 

Cards

Term
What is the deifinition of shock?
Definition
Failure of end organ perfusion
Term
The 5 causes/types of shock are...
Definition

1. Hypovolemic

 

2. Septic

 

3. Cardiogenic

 

4. Neurogenic

 

5. Anaphylactic

Term

What signs are seen with hypovolemic shock?

 

HR, CO, BP, SVR, PCWP

Definition

increases, decreases, decreases, increases, decreases

 

Caused by:

Hemorrhage

3rd spacing

vomitting/diarrhea

poor resuscitation

burns

pancreatits

Term

What are the signs of seprtic shock?

 

HR, CO, BP, SVR, PCWP

Definition

increases, increases, decreases, decreases, increases

 

Etiology - usually gram - bacteria

 

Early - high output cardiac failure

Late - decreased C.O.

 

Term
What are the 3 most feared complications of septic shock?
Definition

1. Disseminated Intravascular Coagulation

 

2. Acute Respiratory Distress Syndrome

 

3. Multi-system Organ Failure

Term
What is the treatment of septic shock?
Definition

1. Antiobiotics / get rid of source 

 

2. Fluid resuscitation

 

3. Vasopressors

Term

What are the signs of cardiogenic shock?

 

HR, CO, BP, SVR, PCWP

Definition
increases, decreases, decreases, increases, increases
Term
What are the 5 causes of intrinsic cardiogenic shock?
Definition

1. Myocardial infarction

 

2. Congestive Heart Failure

 

3. Valvular disease

 

4. Arrythmia

 

5. Papillary muscle dysfunction

Term
What are the 3 causes of external cardiogenic shock?
Definition

1. Cardiac tamponade

 

2. Tension pneumothorax

 

3. Increased abdominal pressure 

Term
What is the treamtnet of cardiogenic shock?
Definition

1. Correct underlyind problem

 

2. Inotropes (Dobutamine - B agonist)

 

3. Diuretics

Term
What are the 2 signs of neurogenic shock?
Definition

Bradycardia and Hypotension 

 

Caused by either spinal cord injury or spinal anesthesia

Term
First step in the assesment of a shock patient?
Definition

Assess the ABC's

 

then

Vitals

UOP

I/O

Mental Statues

Cardiopulmonary exam

Term
List 6 signs of shock
Definition

1. Tachycardia

 

 

2. Hypotension

 

3. Decreased UOP

 

4. Tachypnea

 

5. Altered Mental Status

 

6. Decreased Perfusion

Term
How do you fluid resuscitate a shock patient?
Definition

500cc - 1L crystalloid fluids

 

Observe for UOP and watch for fluid overload

Term
How do you monitor resuscitation efforts in a patient with indeterminate fluid statues?
Definition

Swanz-Ganz catheter

 

 [image]

Term
What is the crystalloid rule after blood loss?
Definition
3:1 ratio of crystalloid fluid for blood loss
Term
What are the indications to give pRBC's?
Definition
Hct <25%
Term
What are the indications to give fresh frozen plasma (FFP)?
Definition

1. PTT > 35

 

2. PT > 15

Term
What are the indications to administer platelets?
Definition
Platelet count < 50,000
Term
After Resuscitation, ABC assesment, next step in shock treatment is ....
Definition

History taking:

 

1st Q: What happened recenetly

 

i.e.

Surgery

Bee Sting

Transfusion

Term

Cardinal symptoms of shock

cardiogenic, septic, neurogenic, anaphylactic

Definition
massive CP radiating to Left arm/jaw, F/C, paralysis, wheezing/itching/cramps
Term
During resuscitation the goal Mean Arterial Blood Pressure is?
Definition

MAP - 65mm Hg

 

MAP = 1/3 systolic + 2/3 diastolic 

Term
What labs would you order in a shock patient?
Definition

CBC

BMP

ABG

T&S

Coagulation

Cardiac Enzymes

Blood cultures

Fibrinogen/d-dimer (DIC cx sepsis)

Lactate (perfusion status)

Term
What studies would you order in a shock patient and why?
Definition

1. CXR - r/o pulmonary edema

 

2. EKG 

 

3. TTE/TEE - rule out cardiogenic cause

 

4. CT - unknown etiology

Term
What is the most common pressor and how does it work?
Definition

Phenylepherine - an alpha agonist 

 

Increases SVR and MAP by vasoconstricting

Term
What is the most common inotrope used and how does it work?
Definition

Dobutamine is utilized to increase heart contractility

 

It is a beta agonist 

Term
What is the role of Dopamine in shock patients?
Definition

At low doses Dopamine vasodilates renal, mesenteric, coronary, and cerebral vessels during times of hypoperfusion.

 

 

Term
Treatment of Hypovolemic Shock includes...
Definition

1. Resuscitation

3:1 crystalloid

pRBC Hct <30

If unstable after 4-6L crystalloid and 4-6U pRBC go to OR

 

2. Stop bleeding

 

3. No vasopressors, will make heart work more 

Term
5 points of sepsis treatment
Definition

1. Identify source

 

2. IVF

 

3. Abx - Van/Gent/Flag

 

4. Pressors/Inotropes (phenylepherine, dopamine, NE)

 

5. Monitor Cx: MSOF, DIC

Term
First step in treating cardiogenic shock?
Definition

Identifying source of cardiogenic shock...

 

- catherization

- pericardiocentesis

- surgery

Term
2 step treatment of cardiogenic shock
Definition

Inotropes 

 

Vasopressors

 

Monitor PWCP with Swanz Ganz catheter, want it to decrease

Term
Last resort in treatment of cardiogenic shock is...
Definition

Intra-aortic balloon pump

 

and ventricular assisted device 

Term
2 point treatment of neurogenic shock
Definition

1. Fluids

 

2. Phenylepherine

Term
Treatment of anaphylactic shock
Definition

Epinepherine and Albuterol

 

Others: Benadryl, Hydrocortisone, Pressors

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