involves uncompensated shock sign finding tachycardia finding capillary refill time > 3s finding reduced central pulse volume finding decreased level of consciousness or loss of consciousness finding increased use of accessory respiratory muscles finding cyanosis finding grunting finding hoarse voice finding diarrhoea finding abdominal pain finding mast cell tryptase elevation > upper normal limit finding gastrointestinal sign dry cough finding chest tightness finding erythema finding itchy eyes finding pruritus finding difficulty breathing finding clinical finding cardiovascular system