ALU 101 - COMPLETE MOCK EXAM #9
Chapters 1-15 | 100 Questions with Answers
Instructions: This exam contains 100 questions in three formats:
Questions 1-45: Straight Answer (select the best option)
Questions 46-75: "All-Correct-Except" (identify the one false
statement)
Questions 76-100: Complex Multiple Choice (A, B, C combinations)
The correct answer is provided directly below each question.
PART I: STRAIGHT ANSWER QUESTIONS (1-45)
1. The imaging modality that uses a rotating beam of x-rays to
produce cross-sectional images, with Hounsfield units quantifying
tissue density, is:
1. magnetic resonance imaging
2. computed tomography
3. positron emission tomography
4. single photon emission computed tomography
Answer: 2. Computed tomography (CT) uses a rotating beam of x-rays to
produce cross-sectional images. Since specific tissues absorb x-rays
differently, the absorption is quantified as Hounsfield units (density of
water being zero Hounsfield units).
,2. The procedure that involves inserting a needle into the bile
duct through the liver to inject dye for visualization of the biliary
tree is called:
1. endoscopic retrograde cholangiopancreatography
2. percutaneous transhepatic cholangiography
3. magnetic resonance cholangiopancreatography
4. cholescintigraphy
Answer: 2. Percutaneous transhepatic cholangiography involves inserting
a needle through the skin and liver into the hepatic duct and injecting
dye. The biliary tree is then visualized by x-ray. It is now used mainly for
therapeutic interventions.
3. The test that measures the speed of electrical impulse
transmission along a nerve by placing electrodes along the nerve
and emitting a weak stimulus is:
1. electromyography
2. nerve conduction velocity
3. evoked potentials
4. electroencephalography
Answer: 2. Nerve conduction studies (NCS) or nerve conduction velocity
(NCV) involve electrode placement along the nerve. A weak electrical
stimulus is emitted and the time for the impulse to travel is recorded. It
detects sensory and motor neuropathy.
4. The term for the addition of fluid to a urine sample to dilute it,
which can be detected by extremely low urine creatinine, is:
1. adulteration
2. substitution
3. dilution
4. contamination
Answer: 3. Dilution is the addition of fluid to a urine sample, lowering the
concentration of all substances. Extremely low urine creatinine values
(<11 mg/dL in males, <9 in females) can indicate very high fluid intake or
addition of fluid.
,5. The condition in which an individual has a random blood
glucose test that is drawn without fasting is useful for screening
but not for reliable blood sugar control assessment because:
1. it is too expensive
2. glucose levels fluctuate widely based on recent food intake
3. it requires special equipment
4. it takes too long to get results
Answer: 2. Random blood glucose fluctuates widely depending on what
has been eaten recently. Fasting blood glucose is more reliable but still
subject to fluctuation. A1c is the best test for monitoring control.
6. The type of syncope evaluated by a tilt table test,
characterized by a decrease in both blood pressure and heart
rate, is:
1. dysautonomic syncope
2. vasovagal syncope
3. cardiac syncope
4. orthostatic hypotension
Answer: 2. Vasovagal (neurocardiogenic) syncope shows a decrease in
both blood pressure and heart rate during tilt table testing. If only blood
pressure decreases, it is considered dysautonomic syncope.
7. The term for the process by which cells lose their specialized
features and revert to a less differentiated state, characteristic of
aggressive cancers, is:
1. dysplasia
2. metaplasia
3. anaplasia
4. hyperplasia
Answer: 3. Anaplasia refers to loss of specialized cell features, with cells
becoming undifferentiated. Grade 4 tumors are described as
, undifferentiated or anaplastic, phenotypically least like the normal cell,
indicating aggressive behavior.
8. The test that measures the protein produced by the liver that
is decreased in starvation, cirrhosis, and cancer-related wasting,
and is the most abundant protein in blood, is:
1. globulin
2. albumin
3. total protein
4. prealbumin
Answer: 2. Albumin is the most abundant protein in blood, produced in
the liver. It is decreased in starvation, cirrhosis, and wasting (cachexia)
that often accompanies cancer or HIV. Low levels indicate need for
additional evaluation.
9. The term for a driver's license suspension that applies to
drivers who refuse to submit to approved tests to determine
intoxication is:
1. administrative per se
2. implied consent violation
3. zero tolerance violation
4. conditional privilege revocation
Answer: 2. Implied consent applies to drivers who refuse to submit to
approved tests to determine intoxication. Individuals with a license are
deemed to have given their consent to chemical testing if lawfully
arrested for an offense.
10. The statistical term for the range of test results that includes
95% of a healthy population is the:
1. confidence interval
2. reference range
3. standard deviation
Chapters 1-15 | 100 Questions with Answers
Instructions: This exam contains 100 questions in three formats:
Questions 1-45: Straight Answer (select the best option)
Questions 46-75: "All-Correct-Except" (identify the one false
statement)
Questions 76-100: Complex Multiple Choice (A, B, C combinations)
The correct answer is provided directly below each question.
PART I: STRAIGHT ANSWER QUESTIONS (1-45)
1. The imaging modality that uses a rotating beam of x-rays to
produce cross-sectional images, with Hounsfield units quantifying
tissue density, is:
1. magnetic resonance imaging
2. computed tomography
3. positron emission tomography
4. single photon emission computed tomography
Answer: 2. Computed tomography (CT) uses a rotating beam of x-rays to
produce cross-sectional images. Since specific tissues absorb x-rays
differently, the absorption is quantified as Hounsfield units (density of
water being zero Hounsfield units).
,2. The procedure that involves inserting a needle into the bile
duct through the liver to inject dye for visualization of the biliary
tree is called:
1. endoscopic retrograde cholangiopancreatography
2. percutaneous transhepatic cholangiography
3. magnetic resonance cholangiopancreatography
4. cholescintigraphy
Answer: 2. Percutaneous transhepatic cholangiography involves inserting
a needle through the skin and liver into the hepatic duct and injecting
dye. The biliary tree is then visualized by x-ray. It is now used mainly for
therapeutic interventions.
3. The test that measures the speed of electrical impulse
transmission along a nerve by placing electrodes along the nerve
and emitting a weak stimulus is:
1. electromyography
2. nerve conduction velocity
3. evoked potentials
4. electroencephalography
Answer: 2. Nerve conduction studies (NCS) or nerve conduction velocity
(NCV) involve electrode placement along the nerve. A weak electrical
stimulus is emitted and the time for the impulse to travel is recorded. It
detects sensory and motor neuropathy.
4. The term for the addition of fluid to a urine sample to dilute it,
which can be detected by extremely low urine creatinine, is:
1. adulteration
2. substitution
3. dilution
4. contamination
Answer: 3. Dilution is the addition of fluid to a urine sample, lowering the
concentration of all substances. Extremely low urine creatinine values
(<11 mg/dL in males, <9 in females) can indicate very high fluid intake or
addition of fluid.
,5. The condition in which an individual has a random blood
glucose test that is drawn without fasting is useful for screening
but not for reliable blood sugar control assessment because:
1. it is too expensive
2. glucose levels fluctuate widely based on recent food intake
3. it requires special equipment
4. it takes too long to get results
Answer: 2. Random blood glucose fluctuates widely depending on what
has been eaten recently. Fasting blood glucose is more reliable but still
subject to fluctuation. A1c is the best test for monitoring control.
6. The type of syncope evaluated by a tilt table test,
characterized by a decrease in both blood pressure and heart
rate, is:
1. dysautonomic syncope
2. vasovagal syncope
3. cardiac syncope
4. orthostatic hypotension
Answer: 2. Vasovagal (neurocardiogenic) syncope shows a decrease in
both blood pressure and heart rate during tilt table testing. If only blood
pressure decreases, it is considered dysautonomic syncope.
7. The term for the process by which cells lose their specialized
features and revert to a less differentiated state, characteristic of
aggressive cancers, is:
1. dysplasia
2. metaplasia
3. anaplasia
4. hyperplasia
Answer: 3. Anaplasia refers to loss of specialized cell features, with cells
becoming undifferentiated. Grade 4 tumors are described as
, undifferentiated or anaplastic, phenotypically least like the normal cell,
indicating aggressive behavior.
8. The test that measures the protein produced by the liver that
is decreased in starvation, cirrhosis, and cancer-related wasting,
and is the most abundant protein in blood, is:
1. globulin
2. albumin
3. total protein
4. prealbumin
Answer: 2. Albumin is the most abundant protein in blood, produced in
the liver. It is decreased in starvation, cirrhosis, and wasting (cachexia)
that often accompanies cancer or HIV. Low levels indicate need for
additional evaluation.
9. The term for a driver's license suspension that applies to
drivers who refuse to submit to approved tests to determine
intoxication is:
1. administrative per se
2. implied consent violation
3. zero tolerance violation
4. conditional privilege revocation
Answer: 2. Implied consent applies to drivers who refuse to submit to
approved tests to determine intoxication. Individuals with a license are
deemed to have given their consent to chemical testing if lawfully
arrested for an offense.
10. The statistical term for the range of test results that includes
95% of a healthy population is the:
1. confidence interval
2. reference range
3. standard deviation
