BACHELOR MEDICINE AND SURGERY (MBBS)
UNIVERSITY COLLEGE SHAHPUTRA, KUANTAN
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Circulatory shock PROBLEM BASED LEARNING (PBL) PREPARED BY: MUHAMMAD ARIFF B. MAHDZUB BACHELOR MEDICINE AND SURGERY (MBBS) UNIVERSITY COLLEGE SHAHPUTRA, KUANTAN
OBJECTIVES… Identify definition of shock Types of shock Causes of shock Signs of shock Symptoms of shock Treatment of shock
SHOCK DEFINITION Circulatory shock is a life-threatening medical condition ( emergency condition ) as a result of insufficient blood flow throughout the body.
TYPES OF SHOCK 5 TYPES OF SHOCK : Septic shock Anaphylactic shock Cardiogenic shock Hypovolemic shock Neurogenic shock
SEPTIC SHOCK This types of shock is results from bacteria multiplying in the blood and releasing toxins Common causes of this shock is pneumonia, urinary tract infection, skin infection, meningitis
ANAPHYLACTIC SHOCK Is a type of severe hypersensitivity or allergic reaction It may caused by allergy to insect stings, medicines or food
CARDIOGENIC SHOCK This types of shock happen when the heart is damaged and unable to supply sufficient amount of blood to the body
HYPOVOLEMIC SHOCK Is caused by severe blood and fluid loss , such as traumatic bodily injury, which makes the heart is unable to pump the blood to the body
NEUROGENIC SHOCK This types of shock is due to spinal cord injury or CNS damage , usually result of traumatic accident or injury
CAUSES OF SHOCK There are several main causes of shock: Heart failure Dehydration Infection Spinal injury Heavy internal/external bleeding Severe allergy reaction
SIGN OF SHOCK Short breath Chest pain Dizziness Decrease in urine amount Thirst Nausea
SYMPTOMS OF SHOCK Sunken of eye Low blood sugar level Dry tongue Bluish lips and fingernails Weak pulse Swelling of the face and throat (anaphylactic shock only)
TREATMENT OF SHOCK Septic shock is treated with prompt administration of antibiotics depending on the source and type of underlying infection
Cardiogenic shock is treated by identifying and treating the underlying cause . A patient with a heart attack may require a surgical procedure to unblock an artery. A patient with congestive heart failure may need medications to support and increase the force of the heart's beat . In severe or prolonged cases, a heart transplant may be the only treatment.
Hypovolemic shock is treated with fluids (saline) in minor cases, but may require multiple blood transfusions in severe cases . Neurogenic shock is the most difficult to treat. Damage to the spinal cord is often irreversible. Anti-inflammatory medicine such as steroids, and sometimes surgery are the main parts of treatment.
OUTLOOK OF SHOCK Generally, hypovolemic shock and anaphylactic shock respond well to medical treatment if initiated early Cardiogenic shock has a poor prognosis, with only 1/3 of patients surviving. Because this type of shock results from injury or dysfunction of the heart it is often difficult to treat and overcome
Neurogenic shock also has a very poor prognosis because the spinal cord mediates so many important bodily functions. There are currently very few effective treatments but medical research is making advances in the treatment of spinal injuries .
Septic shock is a serious condition with a mortality rate of 24% to 50% according to some estimates. The sooner the infection is treated and fluids are administered, the greater the chances of success. Hospitals are now developing and utilizing specific protocols to identify and aggressively treat septic shock patients.