1|Page
MMSC 407 Clinical Chemistry Final Exam
featuring accurate and verified questions
covering biochemical analytes, instrumentation,
quality control, clinical correlations, endocrine
function, and interpretation of laboratory results.
Designed for student
What kind of chemicals do labs buy? - ....ANSWER
....✔✔ Pre-prepared chemicals with varying purity
Which chemicals are the best for labs - ....ANSWER
....✔✔ AR (Analytic Reagent Grade) and ultrapure
are best for the lab
Which pure chemicals are used for chromatography
assays - ....ANSWER ....✔✔ Ultrapure is used in
chromatography assays
What do the chemical labels show - ....ANSWER
....✔✔ Labels show grade and percentage of
impurities
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What are reference materials - ....ANSWER ....✔✔
Materials that are used to calibrate instruments or find
out the standard
"calibration mode"
What are reference materials derived from? Who
certifies them? - ....ANSWER ....✔✔ they are derived
from biohazard samples
NIST certified
What is the most used reagent - ....ANSWER ....✔✔
water
How many times does lab water need to be purified -
....ANSWER ....✔✔ Lab used water needs to purified
at least 2x
What are some parameters that lab water need to fit -
....ANSWER ....✔✔ microbiologic count, pH, resistivity,
silicate, particulate matter, organics
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What are some methods of purification - ....ANSWER
....✔✔ Reverse osmosis, filtration, distillation,
deionization, UV light
What is the 1-3 water designation? Which designation
does the lab use? - ....ANSWER ....✔✔ Water has a
1-3 designation where 1 is the most pure and 3 is the
least LAB USES I
solute - ....ANSWER ....✔✔ a substance dissolved in a
liquid
Analytes - ....ANSWER ....✔✔ biologic solutes
Solvent - ....ANSWER ....✔✔ liquid in which solute is
dissolved
Solution - ....ANSWER ....✔✔ solute plus solvent
Molality - ....ANSWER ....✔✔ moles/kg solvent
Molarity - ....ANSWER ....✔✔ moles/L solvent
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Colligative properties - ....ANSWER ....✔✔ osmotic
pressure, vapor pressure, freezing point, boiling point
Which colligative properties are depressed as
concentration of solute is added - ....ANSWER ....✔✔
VP and FP
Redox potential - ....ANSWER ....✔✔ measure of the
ability of solution to accept or donate electrons
Conductivity - ....ANSWER ....✔✔ measure of how
well electricity passes through a solution
pH - ....ANSWER ....✔✔ inverse log of the hydrogen
ion concentration
Buffers - ....ANSWER ....✔✔ weak acids or bases and
their related salts that minimize changes in hydrogen ion
concentration
What is the formula for converting F to C - ....ANSWER
....✔✔ (5/9-32 from F)
MMSC 407 Clinical Chemistry Final Exam
featuring accurate and verified questions
covering biochemical analytes, instrumentation,
quality control, clinical correlations, endocrine
function, and interpretation of laboratory results.
Designed for student
What kind of chemicals do labs buy? - ....ANSWER
....✔✔ Pre-prepared chemicals with varying purity
Which chemicals are the best for labs - ....ANSWER
....✔✔ AR (Analytic Reagent Grade) and ultrapure
are best for the lab
Which pure chemicals are used for chromatography
assays - ....ANSWER ....✔✔ Ultrapure is used in
chromatography assays
What do the chemical labels show - ....ANSWER
....✔✔ Labels show grade and percentage of
impurities
,2|Page
What are reference materials - ....ANSWER ....✔✔
Materials that are used to calibrate instruments or find
out the standard
"calibration mode"
What are reference materials derived from? Who
certifies them? - ....ANSWER ....✔✔ they are derived
from biohazard samples
NIST certified
What is the most used reagent - ....ANSWER ....✔✔
water
How many times does lab water need to be purified -
....ANSWER ....✔✔ Lab used water needs to purified
at least 2x
What are some parameters that lab water need to fit -
....ANSWER ....✔✔ microbiologic count, pH, resistivity,
silicate, particulate matter, organics
,3|Page
What are some methods of purification - ....ANSWER
....✔✔ Reverse osmosis, filtration, distillation,
deionization, UV light
What is the 1-3 water designation? Which designation
does the lab use? - ....ANSWER ....✔✔ Water has a
1-3 designation where 1 is the most pure and 3 is the
least LAB USES I
solute - ....ANSWER ....✔✔ a substance dissolved in a
liquid
Analytes - ....ANSWER ....✔✔ biologic solutes
Solvent - ....ANSWER ....✔✔ liquid in which solute is
dissolved
Solution - ....ANSWER ....✔✔ solute plus solvent
Molality - ....ANSWER ....✔✔ moles/kg solvent
Molarity - ....ANSWER ....✔✔ moles/L solvent
, 4|Page
Colligative properties - ....ANSWER ....✔✔ osmotic
pressure, vapor pressure, freezing point, boiling point
Which colligative properties are depressed as
concentration of solute is added - ....ANSWER ....✔✔
VP and FP
Redox potential - ....ANSWER ....✔✔ measure of the
ability of solution to accept or donate electrons
Conductivity - ....ANSWER ....✔✔ measure of how
well electricity passes through a solution
pH - ....ANSWER ....✔✔ inverse log of the hydrogen
ion concentration
Buffers - ....ANSWER ....✔✔ weak acids or bases and
their related salts that minimize changes in hydrogen ion
concentration
What is the formula for converting F to C - ....ANSWER
....✔✔ (5/9-32 from F)
