Clinical Chemistry Exam 3 (ch 11-13) with correct answers 2024
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Course
Clinical Chemistry Ex
Institution
Clinical Chemistry Ex
The anion gap is determined from which of the following groups of electrolytes? correct answers sodium, chloride, potassium, and TCO2
Which of the following groups of analytes are used to calculate serum osmolality? correct answers glucose, urea nitrogen, and sodium
What is the cation with ...
The anion gap is determined from which of the following groups of electrolytes? correct
answers sodium, chloride, potassium, and TCO2
Which of the following groups of analytes are used to calculate serum osmolality?
correct answers glucose, urea nitrogen, and sodium
What is the cation with the highest extracellualar concentration? correct answers
sodium
What is the anion with the highest extracellular concentration? correct answers chloride
An elevated anion gap usually represents an increase in which of the following? correct
answers unmeasured anions
A patient with normal concetrations of electrolystes and a moderaltely elevated blood
ethanol level will most likley have which of the following? correct answers a higher than
normal serum osmolal gap
Which of the following sequences accuraltely reflects the renin-angiotensin-aldosterone
system in response to hyponatremia? correct answers renin is released from the
kidney; renin converts angiotensionogen to angiotensin I; angiotensin I is converted to
angiotensionII
What is the cation with the highest intracellular concentration? correct answers
potassium
The presence of slightly visible hemolysis can significantley increase the serum level of
which of the following electrolytes? correct answers potassium
A 1 millimolal solution of KCI is how many milliosmolal? correct answers 2.0
Which of the following instrumentation techniques is used to measure sodium and
potassium and serum or plasma? correct answers ion-selective electrodes
Which of the following contributes the most total serum total CO2? correct answers
bicarbonate (HCO3)
Which of the following measures chloride in sweat? correct answers coulometry and
amperomentry
, Which of the following represents the correct responses to the analytes listed for a
patient that is "overhydrated" correct answers decreased serum osmolarity, decreased
serum sodium, increased serum ADH
A patient who has an increase in intravascular fluid volume will experience which of the
following? correct answers an increase in the release of cardiac natriuretic peptide
Hypoosmotic hyponatremia can be due to which of the following? correct answers
excess loss of sodium, or an increased extracellular fluid volume
Syndrome of inappropriate ADH secretion is associated with which of the following
correct answers increased ADH and decreased serum sodium
In most cases, hyperchloremia parallels which of the following conditions? correct
answers hypernatremia
Which of the following condiitons is characterized by an increased anion gap? correct
answers salicylate intoxication, diabetes mellitus, lactate acidosis
What is a major difference between interstital fluid and plasma? correct answers
interstitial fluid contains almost no protein, whereas plasm contains a large amount
protein
Hyponatremia may be seen in which of the following conditions? correct answers
edema
Hyperkalemia may be seen in which of the following? correct answers increased GI
loss
Which of the following conditions can result in inaccurate serum potassium levels
correct answers Hemolysis
An elevated chloride concentration in sweat is suggestive of which of the following
diseases? correct answers cystic fibrosis
What is the pH of a sample with a pCO2 of 40 mmHg and bicarbonate concentration of
26 mmol/L? correct answers 7.4
Which of the following is not an example of a major body buffer?
a. bicarbonate
b. hemoglobin
c. protein
d. sulfate correct answers sulfate
Carbonic acid concentration in plasma usually equals correct answers 0.03 times pCO2
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