…failure New drowsiness, confusion or agitation Suspect hypoxaemia or hypercapnia Cyanosis or saturation below target despite oxygen Severe impairment of gas exchange Hypotension, cool peripheries…

…or reduced air entry Silent or nearly silent chest pCO₂ Low Usually low Normal or raised Other Moderate work of breathing Accessory muscle use Cyanosis…

…stridor, cyanosis or marked breathlessness — withdraw the tube to the pharynx and start again . If the tube emerges through the mouth it has coiled up…

…tachycardia, tachypnea, weakened peripheral pulses, edema, cyanosis. Cardiac tamponade is seen in Video 1 . Video 1. Cardiac tamponade. The heart is surrounded by fluid (black…

…and persistent ischaemia. The limb may be cold, pale, cyanotic or mottled. Capillary refill is delayed, and venous filling may be reduced. Other possible findings…

…of skin color is not necessary to confirm cardiac arrest. Skin color is pale or cyanotic, but this may be difficult to discern depending on…