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25 Cards in this Set
- Front
- Back
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normal pH of blood is
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7.35 - 7.45
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acidosis is
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less than 7.35
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alkalosis is
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greater than 7.45
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the PaCO2 reflects
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respiratory effort
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normal PaCO2 is
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35 - 45 mmHg
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less than 35 PaCO2 can be
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respiratory alkalosis or compensated metabolic acidosis
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more than 45 PaCO2 can be
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respiratory acidosis or compensated metabolic alkalosis
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normal bicarb is
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22 - 26 mEq
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less than 22 mEq bicarb is
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metabolic acidosis
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more than 26 mEq bicarb is
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metabolic alkalosis
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compensated respiratory acidosis or alkalosis will only happen if
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chronic respiratory condition for days because the bicarb response is slow
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a positive base excess is the same as
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a negative base deficit and vice versa
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base excess of a negative number is the same as
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a positive base deficit
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base excess or deficit indicates
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a metabolic acidosis or alkalosis (since base refers to bicarb basically)
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normal base excess value is
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0
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normal base to acid ratio is
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20:1 - this is set as 0 for the base deficit
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a base deficit of -10 is the same as
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a base excess of 10
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can you draw the scale and label base excess, acidosis,
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alkalosis, base deficits, positives and negatives
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cyanide poisoning prevents what causing what
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prevents O2 from entering the cell, causing acidosis
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massive blood loss leads to acidosis because
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increase lactic acid build up due to anaerobic metabolism because not enough O2 carrying Hgb
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a pt with
pH 7.32, PaCO2 50, HCO3 23, BE .2 |
noncompensated respiratory acidosis
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when in doubt is the primary cause of acidosis or alkalosis respiratory or metabolic
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respiratory because it happens so much quicker (unless there is a large change in the base and bicarb numbers)
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example
ph 7.43, paCO2 30, HCO3 14, BE -7 |
compensated metabolic acidosis
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a high O2 with a low sat is seen in
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hemorrhaging patients - no carrying capacity
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what PaO2 is a 90% sat
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60
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