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Types of Shock%u2022 Key:CO = Cardiac OutputSVR = Systemic Vascular ResistanceJVD = Jugular Venous DistensionMI = Myocardial InfarctionCHF = Congestive Heart Failure%u2022Type of Shock Cause Hemodynamic Changes Clinical Features ExamplesHypovolemic Fluid loss %u2193 Preload, %u2193 CO Tachycardia, hypotension, cold extremitiesHemorrhage, severe dehydrationCardiogenic Pump failure %u2193 CO, %u2191 SVR Dyspnea, JVD, pulmonary edema MI, severe CHFDistributive Vasodilation %u2193 SVR, %u2191 or %u2193 COWarm extremities, bounding pulse Septic shock, anaphylaxisObstructive Obstruction to blood flow %u2193 Preload, %u2193 CO JVD, pulsus paradoxus Tension pneumothorax, cardiac tamponadeNeurogenic Loss of sympathetic tone%u2193 SVR, %u2193 CO Warm, dry skin, bradycardia Spinal cord injury
