pathophysiology

shock is a circulatory failure that lead to inadequate tissue perfusion _cellular dysfunction - organ failure - death

• 1-Hypovolemic shock
• 2-Cardiogenic Shock
• 3-Distributive shock

• Reduction of the circulating volume
• •Blood Loss: trauma, gastrointestinal bleeding
• •Plasma Loss: burns
• •Fluid Loss: Diarrhea & sunstroke

• Impaired Cardiac function
• •Myocardiac infarction
• •Heart failure
• •Weak contractions in ventricular fibrilations

• Systemic dilatation of blood vessel (vasodilatation)
• •Sepsis: circulating bacterial toxins
• •Anaphylaxis: caused by allergy →
• Histamine release
• •Neurogenic: spinal cord injury

• •Increased heart rate (Tachycardia)
• •Maintain normal Blood pressure
• •Irritability
• •Thirsty
• •Decrease urinary output

• •Tachypnea (rapid respiration)
• •Cool pale extremities
• •Decrease Blood presuure

• •Hypotension
• •Apnea
• (stop of breathing)
• •Coma
• •Organ
• failure (Kidney – liver – brain)