In absorption spectrophotometry: A) Absorbance is directly proportional to transmittance B) Percent transmittance is directly proportional to concentration C) Percent transmittance is directly proportional to the light path length D) Absorbance is directly proportional to concentration Correct Answer-
Absorbance is directly proportional to concentration
Which formula correctly described the relationship between absorbance and %T? A) A=2-log%T B) A=2+log%T C) A= -log%T - 2 D) A=1+log%T Correct Answer-A=2-log%T
3.
Which element is reduced at the cathode of a Clark polarographic electrode?
A) Silver
B) Oxygen
C) Chloride
D) Potassium Correct Answer-Oxygen
4.
Which of the following best represents the reference (normal) range for arterial pH?
A) 7.35-7.45 B) 7.42-7.52
C) 7.28-7.68
D) 6.85-7.56 Correct Answer-7.35-7.45
5.
What is the normal ration of bicarbonate to dissolved carbon dioxide in arterial blood? A) 1:10 B) 10:1 C) 20:1 D) 30:1 Correct Answer-20:1
6.
A patient's blood gas results are as follows: pH = 7.26; dco2=2.0mmol/L; HCO3-
=29mmol/L. These results would be classified as: A) Metabolic acidosis B) Metabolic alkalosis C) Respiratory acidosis D) Respiratory alkalosis Correct Answer-respiratory acidosis
7.
Which of the following is the primary mechanism of compensation for metabolic acidosis?
A) Hyperventilation
B) Aldosterone release
C) Release of epinephrine D) Bicarbonate excretion Correct Answer-Hyperventilation
8.
Which of the following conditions will cause an increased anion gap?
A) Diarrhea
B) Hypoaldosteronism
C) Hyperkalemia
D) Renal failure Correct Answer-Renal failure
9.
Which of the following conditions is associated with hypophosphatemia?
A) Rickets
B) Multiple myeloma
C) Renal failure
D) Hypervitaminosis D Correct Answer-Rickets
10.
Which of the following conditions is associated with hypokalemia?
A) Addison's disease
B) Hemolytic anemia
C) Digoxin intoxication
D) Alkalosis Correct Answer-Alkalosis
11.
Which of the following condition is associated with hypernatremia? A) Diabetes insipidus
B) Hypoaldosteronism
C) Burns
D) Diarrhea Correct Answer-Diabetes insipidus
12.
Which of the following values is the threshold critical value for low plasma potassium?
A) 1.5mmol/L
B) 2.0mmol/L
C) 2.5mmol/L
D) 3.5mmol/L Correct Answer-2.5 mmol/L
13.
Which electrolyte level best correlates with plasma osmolality?
A) Sodium
B) Chloride
C) Bicarbonate
D) Calcium
: Correct Answer-Sodium
14.
Which of the following is characteristic of type 1 diabetes mellitus?
A) Requires an oral glucose tolerance test for diagnosis
B) Is the most common form of diabetes mellitus
C) Usually occurs after age 40