Which of the following is a buffer base?
a. A metabolite solution
b. An electrolyte-specific solution
c. The solution used to perform a three-point calibration
d. Consists of hemoglobin, inorganic phos-phate, and negatively charged proteins
ANS: D
The buffer base represents the sum of all the anion buffers in the blood, including bicarbonate, hemoglobin, inorganic phosphate, and negatively charged proteins.
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