Master shock classification and perfusion assessment for nursing practice and exams. Distributive, cardiogenic, hypovolemic, and obstructive shock — hemodynamic profiles, clinical signs, vasopressor selection, and nursing priorities.
Cardiac Output
↑ CO
SVR
↓ SVR
PAOP/Preload
Normal/Low
Signs: Warm periphery, fever, bounding pulse, wide pulse pressure
Examples: Sepsis, anaphylaxis, neurogenic
Cardiac Output
↓ CO
SVR
↑ SVR
PAOP/Preload
↑ PAOP
Signs: Cool/mottled extremities, JVD, pulmonary edema, narrow PP
Examples: MI, severe HF, myocarditis
Cardiac Output
↓ CO
SVR
↑ SVR
PAOP/Preload
↓ PAOP
Signs: Cool extremities, tachycardia, flat neck veins, low CVP
Examples: Hemorrhage, severe dehydration, burns
Cardiac Output
↓ CO
SVR
↑ SVR
PAOP/Preload
Variable
Signs: PE: hypoxia + RHF; Tamponade: Beck triad; Tension: tracheal shift
Examples: PE, cardiac tamponade, tension pneumothorax
