Annexure 2.

Criteria for establishing Diagnosis 2 (PoCUS alone)

Cardiogenic shock	Hypokinetic LV or hypokinetic LV and RV with IVC >2 cm dilated and noncollapsing on PoCUS.
Hypovolemic shock	Hyperkinetic LV with >50% collapsing IVC of diameter <2 cm
	Only >50% collapsing IVC of diameter <2 cm
	Abdominal PoCUS suggestive of free fluid with >50% collapsing IVC of diameter <2 cm with or without hyperkinetic LV
Obstructive shock	Hypokinetic RV with multiple A lines with or without consolidation and noncollapsing IVC of diameter >2 cm with or without DVT on PoCUS
	Pericardial effusion with or without hypokinetic RV and noncollapsing IVC of diameter >2 cm on PoCUS
Distributive shock	Consolidation associated with or without air bronchogram with or without IVC collapsing on PoCUS
Cardiogenic with distributive shock	Features suggestive of cardiogenic shock with evident focus of sepsis on PoCUS
Hypovolemic with distributive shock	Features suggestive of hypovolemia with evident focus of sepsis on PoCUS