acid base balance Flashcards

1
Q

what is the normal ph of the blood?

A

from ph 7.35-7.45

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2
Q

what is the cause of respiratory acidosis ?

A

decreased alveolar ventilation - obesity , chest wall deformity , neuromuscular deformity , COPD

severe decreased lung diffusion capacity = fibrosis

severe ventillation perfusion mismatch

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3
Q

when does respiratory alkalosis occur ?

A

breathing too much - hyperventilation

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4
Q

what is the renal compensation in respiratory acidosis

A

increase in HCO3

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5
Q

what are the stages f respiratory failure

A

stage 1 - only hypoxemia
stage 2 - hypoxemia and hypercapnia
stage 3 - hypoxemia , hypercapnia and respiratory acidosis

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6
Q

what should be the normal saturation of oxygen ?

A

95 percent or higher

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7
Q

what are the signs and symptoms of respiratory failure ?

A

central cynosis - bluish lips and tongue and mucus membranes

peripheral cynosis - bluish colour of the extremities

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8
Q

what is the treatment of respiratory failure in stages

A

stage 1 hypoxemia - give oxygen
hypercapnea - give small amounts of oxygen , high amount s can stop respiration , it will stop the stimulation of receptors n the repsiratorycentre

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