1|Page
MMSC 407 CLINICAL CHEMISTRY FINAL VERIFIED
Exam 2026/2027 UPDATE/ PRACTICE QUESTIONS
AND CORRECT VERIFIED ANSWERS (COMPLETE
VERIFIED SOLUTIONS) ASSURED SUCCESS/
ALREADY GRADED A+||NEWEST EXAM!!!
What is the reference range for urea? - Answer-6-20
mg/dL
What is a cause of prerenal azotemia? - Answer-
Congestive Heart Failure
Which NPN is in highest concentration? - Answer-Urea
What metabolite is most often used to estimate GFR? -
Answer-Creatinine
What are the 3 parameters of the clearance test (GFR)? -
Answer-Plasma/serum concentration of the chemical that
needs to be cleared, the urine concentration of that same
chemical, time interval of the clearance procedure
,2|Page
What is the normal ratio of Urea N to Creatinine? -
Answer-10:1-20:1
What is the final product from the breakdown of purine
metabolism? - Answer-Uric acid
Increased levels of this NPN indicate hepatic disorder? -
Answer-Ammonia
Which NPN has special collection requirements? -
Answer-Ammonia
What is an example of a photodetector? - Answer-
Photomultiplier tube
"Light energy that occurs when a specific compound
absorbs EMR, becomes excited, and returns to energy
levels lower than the original levels" describes what? -
Answer-Fluorescence
The release of light energy by a molecule after reacting
with chemical is termed: - Answer-Chemiluminescence
,3|Page
The total solute concentration of a urine sample can be
determined by: - Answer-Refractometry
Osmometry is based on measuring changes in the
collective properties of solutions. What is an example of a
colligative property of a solution? - Answer-Freezing point
What is identified with the functional principle of pH
electrode? - Answer-Potentiometry
What shape line is created when the absorbance of a
series of solutions of known concentration is plotted on the
y-axis and the concentrations are plotted on the x-axis? -
Answer-Straight line
The electrophoretic pattern of a plasma sample compared
with a serum sample shows a: - Answer-Sharp fibrinogen
peak
Absorbance (A) of a solution may be converted to percent
transmittance (%T) using the formula: - Answer-2-log%T
, 4|Page
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: - Answer-Diffraction
grating
In electrophoretic analysis, buffers act as: - Answer-a
carrier for ions
What electrode is based on the principle of amperometric
measurement? - Answer-pO2 electrode
What serum protein fractions are most likely to be
elevated in patients with nephrotic syndrome? - Answer-
alpha-2 and beta globulin
A compound is said to fluoresce when.. - Answer-it
absorbs light at one wavelength and emits light at a
second wavelength
MMSC 407 CLINICAL CHEMISTRY FINAL VERIFIED
Exam 2026/2027 UPDATE/ PRACTICE QUESTIONS
AND CORRECT VERIFIED ANSWERS (COMPLETE
VERIFIED SOLUTIONS) ASSURED SUCCESS/
ALREADY GRADED A+||NEWEST EXAM!!!
What is the reference range for urea? - Answer-6-20
mg/dL
What is a cause of prerenal azotemia? - Answer-
Congestive Heart Failure
Which NPN is in highest concentration? - Answer-Urea
What metabolite is most often used to estimate GFR? -
Answer-Creatinine
What are the 3 parameters of the clearance test (GFR)? -
Answer-Plasma/serum concentration of the chemical that
needs to be cleared, the urine concentration of that same
chemical, time interval of the clearance procedure
,2|Page
What is the normal ratio of Urea N to Creatinine? -
Answer-10:1-20:1
What is the final product from the breakdown of purine
metabolism? - Answer-Uric acid
Increased levels of this NPN indicate hepatic disorder? -
Answer-Ammonia
Which NPN has special collection requirements? -
Answer-Ammonia
What is an example of a photodetector? - Answer-
Photomultiplier tube
"Light energy that occurs when a specific compound
absorbs EMR, becomes excited, and returns to energy
levels lower than the original levels" describes what? -
Answer-Fluorescence
The release of light energy by a molecule after reacting
with chemical is termed: - Answer-Chemiluminescence
,3|Page
The total solute concentration of a urine sample can be
determined by: - Answer-Refractometry
Osmometry is based on measuring changes in the
collective properties of solutions. What is an example of a
colligative property of a solution? - Answer-Freezing point
What is identified with the functional principle of pH
electrode? - Answer-Potentiometry
What shape line is created when the absorbance of a
series of solutions of known concentration is plotted on the
y-axis and the concentrations are plotted on the x-axis? -
Answer-Straight line
The electrophoretic pattern of a plasma sample compared
with a serum sample shows a: - Answer-Sharp fibrinogen
peak
Absorbance (A) of a solution may be converted to percent
transmittance (%T) using the formula: - Answer-2-log%T
, 4|Page
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: - Answer-Diffraction
grating
In electrophoretic analysis, buffers act as: - Answer-a
carrier for ions
What electrode is based on the principle of amperometric
measurement? - Answer-pO2 electrode
What serum protein fractions are most likely to be
elevated in patients with nephrotic syndrome? - Answer-
alpha-2 and beta globulin
A compound is said to fluoresce when.. - Answer-it
absorbs light at one wavelength and emits light at a
second wavelength
