SHOCK

INCREASE

PULSE

AS THERE IS REDUCED VOLUME AS DETECTED BY BARORECEPTORS, THE C.A.C. IS STIMULATED AND THE HEART RATE IS INCREASED BY THE RELEASE OF NORADRENALIN.
THIS RELAYS THE 02 AT A FASTER RATE TO OFFSET THE REDUCED 02 BEING DELIVERED BY THE FALL IN VOLUME.

SWEATING

CAUSED BY STIMULATION OF SWEAT GLANDS BY EXTRA ADRENALINE RELEASED FROM THE SUPRA ADRENAL GLANDS.

RESPIRATION

DUE TO THE LACK OF 02 AND INCREASE IN CO2 ,THE CHEMORECEPTORS STIMULATE THE CHEMORECEPTIVE AREA WHICH LEADS TO INCREASE IN RATE AND RHYTHM
OF RESPIRATIONS TO SUPPLY MORE 02 TO THE BRAIN.

PUPILS DILATE

DUE TO CEREBRAL HYPOXIA AND SYMPATHETIC STIMULATION.







SHOCK

DECREASE

PALLOR

THIS IS DUE TO PERIPHERAL SHUTDOWN.

TEMPERATURE

DUE TO PERIPHERAL SHUTDOWN AND FALL IN BLOOD VOLUME.

L.O.C.

DUE TO CEREBRAL HYPOXIA - THERE IS INADEQUATE
PERFUSION AND INCREASE IN ACIDITY.


B.P.

CAUSED BY REDUCED CARDIAC OUTPUT. AS THE RATE OF HEART CONTINUES TO INCREASE, THE VENTRICLES WILL EVENTUALLY FAIL TO FILL UP,
THEREFORE ; CARDIAC OUTPUT AND B.P. WILL FALL.
THE MEDULLA OBLONGATA BECOMES HYPOXIC, THUS VASOCONSTRICTION AND CARDIOACCELERATION CANNOT BE MAINTAINED.