Analytical Chemistry
Methods, Techniques &
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Updated 2026 Questions and Answers
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, Serum "anion gap" is increased in patients with: lactic acidosis
The buffering capacity of blood is maintained by a chloride
reversible exchange process between bicarbonate and:
Which of the following electrolytes is the chief plasma sodium
cation whose main function is maintaining osmotic
pressure?
A potassium level of 6.8 mEq/L is obtained. Before check the serum for hemolysis
reporting the results, the first step the technologist
should take is to:
Which of the following is true about direct ion selective whole blood specimens are acceptable
electrodes for electrolytes?
A) whole blood specimens are acceptable
B) elevated lipids cause falsely decreased results
C) elevated proteins cause falsely decreased results
D) elevated platelets cause falsely increased results
Calcium concentration in the serum is regulated by: parathyroid hormone
The regulation of calcium and phosphorous metabolism thyroid
is accomplished by which gland?
Which of the following is most likely to be ordered in magnesium
addition to serum calcium to determine the cause of
tetany?
Which of the following would cause a "response" error Protein coating the ion-selective membrane
from an ion-selective electrode for sodium when
measuring serum but not calibrator?
Cerebrospinal fluid (CSF) is formed by ultrafiltration of Choroid plexus
plasma through the:
Of the total serum osmolality, sodium, chloride, and 92%
bicarbonate ions normally contribute approximately
what percent?
The presence of only slightly visible hemolysis will Potassium
significantly increase the serum level of which
electrolyte?