2. Definition:- Shock is a condition in which circulation
fails to meet the nutrional needs of the cells and at
the same time fails to remove metabolic waste
products.
Types
1.Haematogenic or Hypovolumic shock
2. Traumatic shock
3. Neurogenic shock
4. Cardiogenic shock
5. Septic shock
6. Miscellaneos shock
3. PATHOLOGY OF SHOCK
Loss of Blood(injury)
Decrese cardiac input
Decrese cardiac output
Low blood pressure
Failure circulation
SHOCK
4. Compensatory Mechanism
1. Adreneric discharge
2. Hyperventilation
3. Release of vasoactive harmone
4. Collapse
5. Resorption of fluid from intertitial tissue
6. Resorption of fluid from the intracellular to the
extracellular space
7. Renal conservation of body water and electrolyte
5. CLINICAL FEATURES
1. Mild shock
Loss of 20% of blood volumes
Feets become pale n cool,
sweat on forhead ,feet, hand
Pt feel thirsty n cold
Pulse BP and urinary output become normal
2.Moderate shock
Loss of 20 to 40% of blood volumes
Oligouria
Pulse increase but less than 100
BP normal initially
6. 3. Severe shock
Loss of blood volume more than 40%
All this stage with Pallor
Low urinary output and Low BP
Clinical monitoring
1.BP
2.respiration
3.urine
4.cvp
5.ECG
7. TREATMENT
1.Resuscitation
2.Immediate control of bleeding
3.Extracellular fluid replacement
4.drugs
a. sedative
b. chronotropic agent-increase heart rate
c. inotropic agent-improve the strength of cardiac
muscle contraction
d. Vasodilator
e. vasoconstrictor
f. beta blocker
g. Diuretics
