What are the signs of altered physiology in pregnancy?

	Signs of Altered physiology	Consequences
Airway

What are the signs of altered physiology in pregnancy?

	Signs of Altered physiology	Consequences
Airway	Venous engorgement, mucosal oedema and weight gain	Difficult airway or intubation more common
Breathing

What are the signs of altered physiology in pregnancy?

	Signs of Altered physiology	Consequences
Airway	Venous engorgement, mucosal oedema and weight gain	Difficult airway or intubation more common
Breathing	Increased minute ventilation Increased oxygen consumption Splinting of the diaphragm	Increased oxygen requirements Rapid desaturation May make ventilation difficult
Circulation

What are the signs of altered physiology in pregnancy?

	Signs of Altered physiology	Consequences
Airway	Venous engorgement, mucosal oedema and weight gain	Difficult airway or intubation more common
Breathing	Increased minute ventilation Increased oxygen consumption Splinting of the diaphragm	Increased oxygen requirements Rapid desaturation May make ventilation difficult
Circulation	Aorto caval compression Increased heart rate (16%) Increased cardiac output (40%) Increased circulating volume (5L compared to 3.5L)	Needs left lateral tilt Signs of hypovolaemia occur late