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C MMSC 407 acid base exam 3 (questions and answers).
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C MMSC 407 acid base exam 3 (questions and answers).
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C MMSC 407 acid baseexam 3 (questions and
answers)
purpose of blood gases - answer clinical
management of respiratory and metabolic
disorders
respiratory - answer pCO2
lungs
compensatory mechanism for metabolic disorders
metabolic - answer HCO3
kidneys
compensatory mechanisms for respiratory
disorders
definition of pCO2 - answer partial pressure of
CO2 gas
pCO2 reference range - answer 35-45 mmHg
(arterial)
,pO2 definition - answer partial pressure of O2 gas
pO2 reference range - answer 83-100 mmHg
(arterial)
total CO2 (calculated parameter) - answer ctCO2
sum of HCO3 and H2CO3 concentrations
what is H2CO3 - answer dissolved CO2 (dCO2)
how to find dCO2 - answer pCO2 x 0.0306
solubility coefficient of CO2 in blood at 37C
ctCO2 = - answer cHCO3 + cdCO2
ctCO2 reference value - answer 22-29 mmol/L
Buffer Base (calculated parameter) - answer the
sum of the concentration of all the buffer anions in
blood
blood buffers are - answer HCO3 / H2CO3 : 5%
, HPO4 / H2PO4 : 1%
hemoglobin : 80%
plasma proteins : 14%
blood buffer base reference range - answer 46-49
mEq/L
Base Excess (calculated parameter) - answer the
concentration of titratable base when titrating the
blood or plasma with a strong acid or base to a
plasma pH of 7.40 at a pCO2 of 40 mmHg at 37 C
Base excess reference range - answer -2.5 to +2.5
mmol/L
concentration of titratable base positive values are
- answer base excess
concentration of titratable base negative values
are - answer base deficit
what is base excess used to estimate - answer the
amount of sodium bicarbonate to be given to
correct pH problems
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