involves is about capillary refill time > 3s finding CapRefillOver3 Capillary refill time is the time required for the normal skin colour to reappear after a blanching pressure is applied. It is usually performed by pressing on the nail bed to cause blanching and then counting the time it takes for the blood to return to the tissue, indicated by a pink colour returning to the nail. Normally it is <3 seconds. Vaccine 28 (2010) 4487-4498 reduced central pulse volume finding stridor finding upper airway swelling finding tachypnoea finding increased use of accessory respiratory muscles finding recession finding cyanosis finding grunting finding respiratory distress sign finding red and itchy eyes finding generalized pruritus without skin rash finding hoarse voice finding sensation of throat closure finding sneezing or rhinorrhea finding diarrhoea finding abdominal pain finding nausea finding vomiting finding mast cell tryptase elevation > upper normal limit finding respiratory sign gastrointestinal sign dry cough finding chest tightness finding indrawing finding rhinorrhea finding sore throat finding wheezing finding erythema finding red eyes finding itchy eyes finding prickle sensation finding pruritus finding rash finding urticaria finding decreased level of consciousness finding sneezing finding difficulty breathing finding diagnosis textual entity clinical finding cardiovascular system capillary refill time