During the EARLY phase of acute haemorrhage, arterial pressure is maintained at near-normal levels. The most important mechanism by which this is achieved is?

Question

During the EARLY phase of acute haemorrhage, arterial pressure is maintained at near-normal levels. The most important mechanism by which this is achieved is?

Answer

increased total peripheral resistance (vasoconstriction) due to reflex increases in sympathetic vasomotor drive.

Answer

increased cardiac output due to salt and water retention by the kidney.

Answer

increased cardiac output due to the actions of hormones on heart rate and cardiac contractility

Answer

autoregulation of blood flow

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During the EARLY phase of acute haemorrhage, arterial pressure is maintained at ...

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