ASCP-CHEMISTRY EXAM 1 & 2 ACTUAL EXAM
2024 NEWEST EXAM VERIFIED QUESTIONS
AND DETAILED ANSWERS ALREADY GRADED
A+.
The urinary excretion product measured as an indicator of epinephrine production is: -
ANSWER>>vanillylmandelic acid (VMA)
Which 2 conditions can "physiologically" elevate serum alkaline phosphatase? -
ANSWER>>growth, third trimester of pregnancy
The T3 resin uptake test is a measure of: - ANSWER>>binding capacity of thyroxine-binding
globulin (TBG)
During an evaluation of renal function, a patient had plasma cortisol determinations in the
morning after awakening and in the evening. Laboratory results indicated that the morning
value was higher than the evening concentration. This is indicative of - ANSWER>>a normal
finding. Cortisol exhibits a diurnal variation
In the liver, bilirubin is converted to: - ANSWER>>bilirubin diglucuronide
The electrophoretic pattern of plasma sample compared with a serum sample shows a: -
ANSWER>>sharp fibrinogen peak
The biuret reaction for the analysis of serum protein depends on the number of: -
ANSWER>>peptide bonds
Total iron-binding capacity (TIBC) measures the serum iron transporting capacity of: -
ANSWER>>transferrin
In the Jendrassik-Grof method for the determination of serum bilirubin concentration,
quantitation is obtained by measuring the green color of: - ANSWER>>azobilirubin
Absorbance (A) of a solution may be converted to percent transmittance (%T) using the
formula: - ANSWER>>A = 2 - log%T
,Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are both elevated in
what disease? - ANSWER>>viral hepatitis
Calcium concentration in the serum is regulated by: - ANSWER>>parathyroid hormone (PTH)
What steroid is an adrenal cortical hormone? - ANSWER>>corticosterone
Blood PCO2 may be measured by: - ANSWER>>calculations of blood pH and total CO2
concentrations
In the potentiometric measurement of hydrogen ion concentration, reference electrodes that
may be used include: - ANSWER>>silver-silver chloride
In a spectrophotometer, light of a specific wavelength can be isolated from white light with
a(n): - ANSWER>>diffraction grating
The osmolality of a urine or serum specimen is measured by a change in the: -
ANSWER>>freezing point
Which of the following serum constituents is unstable if a specimen is left standing at room
temperature for 8 hours before processing? cholesterol, triglyceride, creatinine, or glucose -
ANSWER>>glucose
A urine screening test for porphobilinogen is positive. The most likely disease state is: -
ANSWER>>acute porphyria attack
In electrophoretic analysis, buffers: - ANSWER>>act as a carrier for ions
A condition in which erythrocyte protoporphyrin is increased is: - ANSWER>>iron deficiency
anemia
The stimulant that causes localized sweating for the sweat test is: - ANSWER>>pilocarpine
nitrate
In the sweat test, the sweating stimulant is introduced to the skin by application of: -
ANSWER>>an electric current
, The formula for calculating serum osmolality that incorporates a correction for the water
content of plasma is: - ANSWER>>2Na + Glucose/20 + (BUN/3)
Osmolal gap is: - ANSWER>>the difference between the calculated and measured osmolality
values
Most of the carbon dioxide present in blood is in the form of: - ANSWER>>bicarbonate ion
The degree to which the kidney concentrated the glomerular filtrate can be determined by: -
ANSWER>>urine to serum osmolality ratio
A physician suspects his patient has pancreatitis. Which test(s) would be most indicative of this
disease? - ANSWER>>amylase
In a specimen collected for plasma glucose analysis, sodium fluoride: - ANSWER>>inhibits
glycolysis
The osmolal gap is defined as measured Osm/kg minus the calculated Osm/kg. The average
osmolal gap is near: - ANSWER>>0
To be analysed by gas liquid chromatography, a compound must: - ANSWER>>be volatile or
made volatile
The solute that contributes the most to the total serum osmolality is: - ANSWER>>sodium
In automated methods utilizing a bichromatic analyzer. dual wavelengths are employed to: -
ANSWER>>minimize the effect of interference
What electrode ID is based on the principle of amperometric measurement? - ANSWER>>PO2
electrode
One international unit of enzyme activity is the amount of enzyme that, under specified
reaction conditions of substrate concentratin, Ph, & temperature, causes utilization of substrate
at the rate of: - ANSWER>>1 micromole/min
The Porter-Silber method (phemylhydrazine in alcohol and sulfuric acid) involves which part of
the steroid molecule? - ANSWER>>dihydroxyacetone side chain (17-OHCC)
2024 NEWEST EXAM VERIFIED QUESTIONS
AND DETAILED ANSWERS ALREADY GRADED
A+.
The urinary excretion product measured as an indicator of epinephrine production is: -
ANSWER>>vanillylmandelic acid (VMA)
Which 2 conditions can "physiologically" elevate serum alkaline phosphatase? -
ANSWER>>growth, third trimester of pregnancy
The T3 resin uptake test is a measure of: - ANSWER>>binding capacity of thyroxine-binding
globulin (TBG)
During an evaluation of renal function, a patient had plasma cortisol determinations in the
morning after awakening and in the evening. Laboratory results indicated that the morning
value was higher than the evening concentration. This is indicative of - ANSWER>>a normal
finding. Cortisol exhibits a diurnal variation
In the liver, bilirubin is converted to: - ANSWER>>bilirubin diglucuronide
The electrophoretic pattern of plasma sample compared with a serum sample shows a: -
ANSWER>>sharp fibrinogen peak
The biuret reaction for the analysis of serum protein depends on the number of: -
ANSWER>>peptide bonds
Total iron-binding capacity (TIBC) measures the serum iron transporting capacity of: -
ANSWER>>transferrin
In the Jendrassik-Grof method for the determination of serum bilirubin concentration,
quantitation is obtained by measuring the green color of: - ANSWER>>azobilirubin
Absorbance (A) of a solution may be converted to percent transmittance (%T) using the
formula: - ANSWER>>A = 2 - log%T
,Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are both elevated in
what disease? - ANSWER>>viral hepatitis
Calcium concentration in the serum is regulated by: - ANSWER>>parathyroid hormone (PTH)
What steroid is an adrenal cortical hormone? - ANSWER>>corticosterone
Blood PCO2 may be measured by: - ANSWER>>calculations of blood pH and total CO2
concentrations
In the potentiometric measurement of hydrogen ion concentration, reference electrodes that
may be used include: - ANSWER>>silver-silver chloride
In a spectrophotometer, light of a specific wavelength can be isolated from white light with
a(n): - ANSWER>>diffraction grating
The osmolality of a urine or serum specimen is measured by a change in the: -
ANSWER>>freezing point
Which of the following serum constituents is unstable if a specimen is left standing at room
temperature for 8 hours before processing? cholesterol, triglyceride, creatinine, or glucose -
ANSWER>>glucose
A urine screening test for porphobilinogen is positive. The most likely disease state is: -
ANSWER>>acute porphyria attack
In electrophoretic analysis, buffers: - ANSWER>>act as a carrier for ions
A condition in which erythrocyte protoporphyrin is increased is: - ANSWER>>iron deficiency
anemia
The stimulant that causes localized sweating for the sweat test is: - ANSWER>>pilocarpine
nitrate
In the sweat test, the sweating stimulant is introduced to the skin by application of: -
ANSWER>>an electric current
, The formula for calculating serum osmolality that incorporates a correction for the water
content of plasma is: - ANSWER>>2Na + Glucose/20 + (BUN/3)
Osmolal gap is: - ANSWER>>the difference between the calculated and measured osmolality
values
Most of the carbon dioxide present in blood is in the form of: - ANSWER>>bicarbonate ion
The degree to which the kidney concentrated the glomerular filtrate can be determined by: -
ANSWER>>urine to serum osmolality ratio
A physician suspects his patient has pancreatitis. Which test(s) would be most indicative of this
disease? - ANSWER>>amylase
In a specimen collected for plasma glucose analysis, sodium fluoride: - ANSWER>>inhibits
glycolysis
The osmolal gap is defined as measured Osm/kg minus the calculated Osm/kg. The average
osmolal gap is near: - ANSWER>>0
To be analysed by gas liquid chromatography, a compound must: - ANSWER>>be volatile or
made volatile
The solute that contributes the most to the total serum osmolality is: - ANSWER>>sodium
In automated methods utilizing a bichromatic analyzer. dual wavelengths are employed to: -
ANSWER>>minimize the effect of interference
What electrode ID is based on the principle of amperometric measurement? - ANSWER>>PO2
electrode
One international unit of enzyme activity is the amount of enzyme that, under specified
reaction conditions of substrate concentratin, Ph, & temperature, causes utilization of substrate
at the rate of: - ANSWER>>1 micromole/min
The Porter-Silber method (phemylhydrazine in alcohol and sulfuric acid) involves which part of
the steroid molecule? - ANSWER>>dihydroxyacetone side chain (17-OHCC)
