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PhysiologicalResponses to

Respiratory

Acidosis

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a s a ys o og ca

Response?

A Physiological Response/ Physiological

Reaction is defned as ‘a bodily process

occurring due to the eect o someantecedent stimulus or agent’

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Physiological Response to

Respiratory Acidosis

• Hyperentilation

• !ercompensation by "idneys

• #ncreased Heart Rate

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Hyperentilation

•  Acid$%ase disturbance created by high Pa&!' in blood(

• Hypercapnia) a condition *here there is e+cess &!'present in the blood) ensues(

• #ncreased &!' leels in blood results in decreased pH(

• Respiratory centre in the brain’s medulla detects highHydrogen ion concentration(

• ,erous impulses sent ia intercostal nere andphrenic nere to e+ternal intercostal muscles and

diaphragm respectiely(• Poor entilation by lungs results in the suer haing to

inhale and e+hale e+cessiely in an attempt todecrease Pa&!' leels(

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!ercompensation by"idneys

• -ue to ailure o lungs to preentrespiratory acidosis) the .idneysincrease the rate at *hich Hydrogen

ions are absorbed into the fltrate(•  here is also an increase in the rate o

renal bicarbonate absorption to increase

the oerall plasma bicarbonate leels(•  his is done in order to return to a

normal bicarbonate/Pa&!' ratio(

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#ncreased Heart Rate