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ASSESSMENT FOR MT ASCP/AMT FINAL
EXAM QUESTIONS AND ANSWERS
In absorption spectrophotometry: Absorbance is directly proportional to transmittance Percent transmittance is directly proportional to concentration Percent transmittance is directly proportional to the light path length Absorbance is directly proportional to concentration - ✔✔ANSWER✔✔->>>>>>>>Absorbance is directly proportional to concentration Which formula correctly described the relationship between absorbance and %T? A=2-log%T A=2+log%T A= - log%T - 2 A=1+log%T - ✔✔ANSWER✔✔->>>>>>>>A=2-log%T
Which element is reduced at the cathode of a Clark polarographic electrode?
Silver Oxygen Chloride Potassium - ✔✔ANSWER✔✔->>>>>>>>Oxygen
Which of the following best represents the reference (normal) range for arterial pH? 7.35-7. 7.42-7. 7.28-7. 6.85-7.56 - ✔✔ANSWER✔✔->>>>>>>>7.35-7.
What is the normal ration of bicarbonate to dissolved carbon dioxide in arterial blood? 1: 10: 20: 30:1 - ✔✔ANSWER✔✔->>>>>>>>20:
Diarrhea Hypoaldosteronism Hyperkalemia Renal failure - ✔✔ANSWER✔✔->>>>>>>>Renal failure
Which of the following conditions is associated with hypophosphatemia? Rickets Multiple myeloma Renal failure Hypervitaminosis D - ✔✔ANSWER✔✔->>>>>>>>Rickets
Which of the following conditions is associated with hypokalemia? Addison's disease Hemolytic anemia Digoxin intoxication Alkalosis - ✔✔ANSWER✔✔->>>>>>>>Alkalosis
Which of the following condition is associated with hypernatremia? Diabetes insipidus Hypoaldosteronism Burns Diarrhea - ✔✔ANSWER✔✔->>>>>>>>Diabetes insipidus
Which of the following values is the threshold critical value for low plasma potassium? 1.5mmol/L 2.0mmol/L 2.5mmol/L 3.5mmol/L - ✔✔ANSWER✔✔->>>>>>>>2.5 mmol/L
Which electrolyte level best correlates with plasma osmolality? Sodium Chloride
D) Requires insulin replacement to prevent ketosis - ✔✔ANSWER✔✔->>>>>>>>Requires insulin replacement to prevent ketosis
Which of the following is the reference method for measuring serum glucose? Somogyi-Nelson Hexokinase Glucose oxidase Glucose dehydrogenase - ✔✔ANSWER✔✔-
Hexokinase
Creatinine is formed from the: Oxidation of creatine Oxidation of protein Deamination of dibasic amino acids Metabolism of purines - ✔✔ANSWER✔✔->>>>>>>>oxidation of creatine
Urea is produced from: The catabolism of proteins and amino acids Oxidation of purines Oxidation of pyrimidines The breakdown of complex carbohydrates - ✔✔ANSWER✔✔-
The catabolism of proteins and amino acids
Blood ammonia levels are usually measured in order to evaluate Renal failure Acid-base status Hepatic coma Gastrointestinal malabsorption - ✔✔ANSWER✔✔-
Hepatic coma
Select the lipoprotein fraction that carries most of the endogenous triglycerides VDRL LDL
A patient has a plasma myoglobin level of 10μg/L at admission. Three hours later the myoglobin is 14μ/L and the Troponin I is 0.04μg/L (reference range 0-0.04μg/L). These results are consistent with which condition? Skeletal muscle injury Acute MI Unstable angina No evidence of myocardial or skeletal muscle injury - ✔✔ANSWER✔✔->>>>>>>>No evidence of myocardial or skeletal muscle
Select the most sensitive marker for alcoholic liver disease GLD ALT AST GGT - ✔✔ANSWER✔✔->>>>>>>>GGT
Hyperparathyroidism is most consistently associated with: A) Hypocalcemia
Hypocalcuria Hypophosphatemia Metabolic alkalosis - ✔✔ANSWER✔✔-
Hypophosphatemia
Which of the following diseases is characterized by primary hyperaldosteronism caused by adrenal adenoma, carcinoma, or hyperplasia? Cushing's disease Addison's disease Conn's disease Pheochromocytoma - ✔✔ANSWER✔✔->>>>>>>>Conn's disease
The serum TSH level is decreased in: Primary hyperthyroidism Primary hypothyroidism Secondary hyperthyroidism
Which two liver enzymes are seen elevated in hepatobiliary disease? AST and ALT ALP and ALT ALP and GGT AST and GGT - ✔✔ANSWER✔✔->>>>>>>>ALP and GGT
Beriberi is associated with deficiency of: Vitamin A Vitamin C Niacin Thiamine - ✔✔ANSWER✔✔->>>>>>>>Thiamine
Zollinger-Ellison syndrome is characterized by a marked elevation of: Gastrin Cholecystokinin Pepsin Glucagon - ✔✔ANSWER✔✔->>>>>>>>Gastrin
Scurvy is associated with deficiency of: A C Niacin Thiamine - ✔✔ANSWER✔✔->>>>>>>>C
This trace element plays a key role in protein and nucleic acid synthesis: Manganese Selenium Zinc Copper - ✔✔ANSWER✔✔->>>>>>>>Zinc
In quality control, ±2 standard deviations from the mean include what percent of the sample population? 50 68
Liver hemangioma - ✔✔ANSWER✔✔->>>>>>>>Acute hepatitis
Major actions of angiotensin II include: Increased pituitary secretion of renin Increased vasoconstriction Increased parathyroid hormone secretion by the parathyroid Decreased adrenal secretion of aldosterone - ✔✔ANSWER✔✔->>>>>>>>Increased vasoconstriction
What is the metabolite of ethanol? Benzoylecgonine 6 - acetylmorphine Acetaldehyde Carboxylic acid - ✔✔ANSWER✔✔->>>>>>>>Acetaldehyde
What is the gold standard methodology for Toxicology testing? A) Immunoassay
Electrophoresis Liquid Chromatography Mass Spectrometry - ✔✔ANSWER✔✔->>>>>>>>Mass Spectrometry
Calculate the coefficient of variation for a set of data where the mean = 89 mg/dL and 2 standard deviations is 7.7% 7.9% 15.7% 15.8% - ✔✔ANSWER✔✔->>>>>>>>7.9%
In the condition Kernicterus, the abnormal accumulation of bilirubin occurs in what tissue? Brain Liver Kidney Blood - ✔✔ANSWER✔✔->>>>>>>>Brain
D) Placenta - ✔✔ANSWER✔✔->>>>>>>>Placenta
What is the percentage of serum calcium that is ionized? 30% 45% 60% 80% - ✔✔ANSWER✔✔->>>>>>>>45%
Creatinine clearance is used to estimate the: Tubular secretion of creatinine Glomerular secretion of creatinine Renal glomerular and tubular mass Glomerular filtration rate - ✔✔ANSWER✔✔-
Glomerular filtration rate
Which of the following readies the uterus for implantation of an embryo? A) FSH
LH
hCG Progesterone - ✔✔ANSWER✔✔->>>>>>>>Progesterone
Which of the formulas is correct for creatinine clearance? U/P x V x 1.73/A P/V x U x A/1. P/V x U x 1.73/A U/V x P x 1.73/A - ✔✔ANSWER✔✔->>>>>>>>U/P x V x 1.73/A
Which hormone controls sodium reabsorption? Aldosterone Anti-Diuretic Hormone Renin Angiotensin II - ✔✔ANSWER✔✔->>>>>>>>Aldosterone
