Flash Notes Miscellaneous - Blood Gas Evaluation Flashcards

1
Q

T/F: evaluation of a/b status = interpretation of blood gas

A

TRUE

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2
Q

what 3 parameters are measured specifically for acid base status?

A

pH, respiratory CO2, & metabolic HCO3/TCO2 and/or BE

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3
Q

what all is measured to evaluate acid base status?

A

alectrolytes (na & cl), PCV, TP/TS & pH, pCO2, HCO3, TCO2, and/or B/E

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4
Q

what are the main rules of thumb for a simple acid/base disorder?

A

one side is abnormal while the other is compensatory - primary component will shift in the same direction as pH change, compensatory response moves in the opposite direction of pH, & no overcompensation

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5
Q

what are the main rules of thumb for mixed acid/base disorders?

A

normal pH but pCO2 or HCO3 are abnormal, shift in pCO2/HCO3 values are not parallel (both up or down), pH change is opposite to that expected from an abnormal pCO2 or HCO3, & compensation levels appear to be greater than expected

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6
Q

how do proteins affect mixed acid/base disorders?

A

hypoalbuminemia: metabolic alkalosis due to loss of weak acids & hyperglobulinemia: metabolic acidosis due to increased weak acids

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7
Q

when a metabolic acidosis presents, what should you do?

A

calculate the anion gap & look at chloride level

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8
Q

T/F: hypoventilation with resultant respiratory acidosis is very common under anesthesia

A

TRUE

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9
Q

why is respiratory acidosis very commonly seen in anesthetized animals?

A

respiratpry center is affected by anesthetic drugs & the respiratory threshold for CO2 is reset - respiratory threshold for CO2 is increased above normal & breathing is not stimulated until the pCO2 exceeds the reset value

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10
Q

T/F: respiratory compensation is inhibited in animals under anesthesia

A

TRUE

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