What is true about arterial blood gases (ABGs)? (Select all that apply.)
a. They are measured from an arterial sample.
b. They measure partial pressures of carbon dioxide.
c. They measure blood pH.
d. They measure partial pressures of sodium.
e. They measure partial pressures of oxygen.
ANS: A, B, C, E
ABGs are taken from samples from arterial blood, which must be drawn and analyzed immediately. ABGs measure partial pressures of carbon dioxide and bicarbonate, pH, and partial pressures of oxygen. ABGs do not measure partial pressures of sodium.
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