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Shock
Critical Care Exam #2 (Cardiovascular)
69
Nursing
Undergraduate 3
03/01/2014

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Cards

Term
MAP
Definition
Indicator for tissue and organ perfusion
Term
Shock
Definition
Inadequate perfusion (blood flow) leading to inadequate oxygen delivery to the tissues.
Term
What is a late sign of shock?
Definition
A falling BP
Term
Initial stage of shock
Definition
Tissues are under-perfused, decreased cardiac output, increased anaerobic metabolism, lactic acid is increasing
Term
Compensatory stage of shock
Definition
Reversible, SNS activated by low cardiac output, attempting to compensate for the decreased tissue perfusion
Term
Progressive stage of shock
Definition
Falling compensatory mechanisms; profound vasoconstriction from the SNS --> ISCHEMIA Lactic acid production is high --> metabolic acidosis
Term
Irreversible or Refractory stage of Shock
Definition
Cellular necrosis and multiple organ dysfunction syndrome may occur
Term
What are some general shock management interventions?
Definition

Maintain airway

Oxygen (most important drug in shock)

Ventilation if needed 

Establish IV access 

Maintain body temperature 

Term
What monitoring do you provide for patients with shock?
Definition

Level of consciousness

Electrocardiogram (EKG)

Hemodynamic 

Term
What are signs and symptoms of cardiogenic shock?
Definition

Weak, thready pulse

Inspiratory crackles (left ventricular failure)

Dyspnea

Cool, moist skin (vasoconstriction)

Tachypnea (fighting lactic acid)

Oliguria (decreased urine output)

Mentation 

Term
What are medication interventions given to a patient with acute pulmonary edema and their BP is above 90-100 mm Hg?
Definition

Furosemide 

Morphine

Nitroglycerin 

Term
What are medication interventions for cardiogenic shock?
Definition

Nitroprusside, Nitroglycerin, Milrinone, and Fenoldopam to dilate coronary vessels 

 

and 

 

Dopamine and dobutamine to enhance contractility 

Term
What are some causes of hypovolemic shock?
Definition

Blood loss (trauma)

Plasma loss (burn victims)

Water loss (vomiting, diarrhea, sweating, increased urine output, and increased respiratory loss) 

Term
If a system that is supposed to be closed leaks, what happens to the pressure in it?
Definition
It decreases.
Term
What loss of cc's produce the beginning symptoms of hypovolemic shock?
Definition
750-1000
Term
What loss of cc's begins failure of compensation in hypovolemic shock?
Definition
1500-2000
Term
What cc's is 40% of total blood volume?
Definition
2000
Term
Decrease in intravascular volume, inadequate tissue perfusion, anaerobic metabolism, lactic acidosis, and cells soaking up water are all indicators of what kind of shock?
Definition
Hypovolemic
Term
What are signs and symptoms of hypovolemic shock?
Definition

Decreased CVP

Decreased capillary refill

Decreased urine output

Anxiety and/or agitation

Confusion

Cool, clammy skin (vasoconstriction)

Absent bowel sounds (GI bleed)

Term
What are managing interventions for epitaxis (nose bleed)?
Definition

Sit up, lean forward

Pinch nostrils together

Keep sitting in position

Keep quiet

Apply ice over nose

15 min adequate intervention

Term
What are signs and symptoms of internal bleeding?
Definition

Pain, tenderness, swelling, and discoloration at injury site

Bleeding from any body orifice

Vomiting bright red blood or coffee ground emesis

Dark, tarry stools

Tender, rigid or distended abdomin 

Term
What are some causes of GI bleeds?
Definition

Peptic ulcers (75%)

Stress ulcers (Curlings or Cushings)

Mallory Weiss tears

Esophageal Varices

 

Term
What are signs and symptoms of GI bleeding?
Definition

Melena

Hematochezia

Occult blood 

Hypovolemia 

Mild epigastric or abdominal pain 

Term
Medical assessment for GI bleeds include:
Definition

H&H

Barium study

Endoscopy

Term
Gastric Lavage
Definition

1000-2000cc of room temperature normal saline

Removed by intermittent suction or gravity until returns clear

Iced salien lavage 

80-90% will stop on own

Term
What medication interventions are used for GI bleeds?
Definition

Proton Pump Inhibitors (Protonix)

Antacids 

Histamine Blockers (Zantac)

Mucosal Barrier Enhancers (Carafate)

 

Term
What is the "best practice" protocal for hypovolemic shock?
Definition

Start 2 large bore IV's 

If bleeding, apply pressure

Replace volume (isotonic crytalloids), platelets, colloids

Take VS every 5 minutes until stable

Do not leave patient alone 

Term
Sclerotherapy
Definition
Agent traumatizes endothelium causing necrosis and sclerosis or blood vessel
Term
Band Ligation
Definition
For varices- rubber band placed on varix up 10 at one time
Term
What are the complications for endoscopic therapies?
Definition
Fever, bleeding, and ARDS
Term
What nursing responsibilities are in place when it comes to balloon tamponades for medical therapy?
Definition

Maintain lumen pressures and patency

Deflate balloon q 8-12 hours

Watch for balloon rupture

Scissors at bedside

Irrigate

Term

What medication is used to lower portal pressure?

 

What symptoms should immediately reported?

Definition

Vasopressin

 

Abdominal cramping, chest pain, and cardiac dysrhythmias 

Term
Septic shock
Definition
Results from body's response to bacteria in the bloodstream
Term
What common bacteria are responsible for septic shock?
Definition
E. coli, pseudomonas, staph, strep
Term
SIRS
Definition

Temp is greater than 100.4 or lesser than 96.8

HR is greater than 90

Respirations are greater than 20

WBC is greater than 12,000 or 10% bands

 

 

Term
Criteria for determination for sepsis
Definition
Considered present if 2 or more SIRS criteria are present along with any known infection and one or more of clinical manifestations
Term
What are the clinical manifestatons for SIRS?
Definition
Hypotension, urinary output is decreased, positive fluid balance, decreased capillary refill, and hyperglycemia
Term
Warm phase of septic shock
Definition
Hyperdynamic state, hypertensive, tachycardia, pink, and warm
Term
Cold shock phase
Definition
Hypodynamic state
Term
Anaphylactic shock
Definition
Results from severe allergic reaction, body responds to allergen by releasing histamine, which causes vessels to dilate and become "leaky"
Term
Patients with anaphylactic shock will develop:
Definition

Hives (urticaria)

Itch

Wheezing and difficulty breathing (bronchospasm)

Term
What chemical released from the body during an allergic reaction accounts for these effects?
Definition
Histamine
Term
Nursing interventions for anaphylactic shock include:
Definition

Maintain patent airway

02, IV, ECG monitoring

Identify the cause 

Term
What medication interventions are necessary for anaphylactic shock?
Definition

Epinephrine

Antihistamines (benedryl)

Steroids (prednisone)

Term
What signs and symptoms are present in neurogenic shock?
Definition
Hypotension, bradycardia, hypothermia, and warm,dry extremeties.
Term
What medication is administered within the first 8 hours of neurogenic shock?
Definition
SoluMedrol
Term
What is the "zeroing" point on the body for a PAC?
Definition

Phlebostatic axis 

 

4th ICS, midaxillary line 

Term
Hemodynamic Monitoring Arterial Lines
Definition
Provide for continous measurement of arterial blood pressure
Term
What are the uses for hemodynamic monitoring?
Definition
Accurate blood pressure, and access site for blood gases
Term
Nursing actions for hemodynamic monitoring of arterial lines include
Definition

Maintain hand in a flexed position

Provide ROM exercises q 2-4 hours

Maintain sterility

Upon removal: hold pressure for 5-10 minutes

Term
What are complications of hemodynamic monitoring of arterial lines?
Definition
Infection, breakage of catheter, and bleeding
Term
What are the uses for hemodynamic monitoring of central venous pressure?
Definition
Measures central venous pressure to estimate blood/fluid volume status, and obtain blood samples
Term
What is the Swan-Ganz catheter used for?
Definition
Measures hemodynamic pressures within the heat and pulmonary vasculature
Term
What are complications of MODS to the brain?
Definition
Lethargy, coma due to poor perfusion and acidosis
Term
What are complications of MODS to the heart?
Definition
Decreased pump ability, decreased cardiac output, and dysrhythmia, infarct
Term
What are complications of MODS to the lungs?
Definition
ARDs, hypoxemia, and acidosis
Term
What are complications of MODS to the GI system?
Definition
Susceptible to septic shock, bowel ischemia, and ulcerations
Term
What are complications of MODS to the kidneys?
Definition
ATN
Term
What is the end goal for MODS?
Definition
Blood pressure within 10mm HG of normal, vital organ perfusion, and normal labs
Term
What are causes of disseminated intravascular coagulopathy?
Definition
Sepsis, shock, malignancy, trauma, burns, transfusion reaction, liver damage, OB complication, and snake bites
Term
What treatment interventions are necessary for DIC?
Definition
Blood products, IV heparin, and oxygen
Term
Disseminated Intravascular Coagulopathy (DIC)
Definition
Clotting factors are overworked by forming clots in the microcirculation and causing microthrombi.
Term

v CVP, ^ SVR, v CO 

Cold extremeties 

 

Indication: 

Definition
Hypovolemic Shock
Term

^ CVP, ^ SVR, v CO 

Extremeties are cold

 

Indication: 

Definition
Obstructive shock
Term

v CVP, v SVR, variable CO

Extremeties are warm 

Definition
Vasogenic/ Distributive shock
Term

^ CVP, ^ SVR, and v CO

 

Extremeties are cold 

Definition
Cardiogenic
Term
Vasopressors
Definition
Increase blood pressure by increasing SVR
Term
Inotropes
Definition
Increase blood pressure by increasing CO by increasing myocardial contractility
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