ALU 101 Practice Questions And Correct Detailed
Answers (Verified Answers) Already Graded A+
1. The test that measures thyroid function is:
A) Electrocardiogram (EKG)
B) Radioactive iodine uptake
C) Complete Blood Count (CBC)
D) Urinalysis
Correct Answer: B) Radioactive iodine uptake
Rationales:
• A is incorrect: An EKG measures the electrical activity of the heart, not the thyroid.
• B is correct: Radioactive iodine uptake (RAIU) measures how much iodine the
thyroid gland absorbs, which evaluates its function.
• C is incorrect: A CBC measures different components of blood (red cells, white
cells, platelets) for general health, not specific thyroid function.
• D is incorrect: Urinalysis evaluates metabolic and kidney disorders, not thyroid
function.
2. The class of drug that is often used as the first treatment for hypertension is:
A) Thiazide diuretics
B) Statins
C) Bronchodilators
D) NSAIDs
Correct Answer: A) Thiazide diuretics
Rationales:
1
, EDITED BY NURSEMIA
• A is correct: Thiazide diuretics are commonly prescribed as a first-line medication
to help the kidneys eliminate sodium and water, reducing blood volume and blood
pressure.
• B is incorrect: Statins are used to lower cholesterol, not primarily for hypertension.
• C is incorrect: Bronchodilators are used to treat respiratory conditions like asthma
by opening airways.
• D is incorrect: NSAIDs are anti-inflammatory pain relievers and can actually
increase blood pressure.
3. The level of fructosamine in the blood represents the:
A) Average glucose level over a three month period
B) Kidney filtration rate
C) Fasting glucose at a single point in time
D) Average glucose level over a three week period
Correct Answer: D) Average glucose level over a three week period
Rationales:
• A is incorrect: The average glucose over a 2-3 month period is measured by the
Hemoglobin A1c test.
• B is incorrect: Kidney filtration is measured by eGFR and creatinine levels.
• C is incorrect: A standard fasting blood sugar test measures glucose at a single
moment.
• D is correct: Fructosamine reflects glycated serum proteins, which turn over faster
than hemoglobin, representing blood sugar control over the past 2-3 weeks.
4. An absolute increase in the number of cells in a tissue is:
A) Hypertrophy
B) Atrophy
C) Hyperplasia
D) Dysplasia
Correct Answer: C) Hyperplasia
2
, EDITED BY NURSEMIA
Rationales:
• A is incorrect: Hypertrophy is an increase in the size of individual cells, not the
number.
• B is incorrect: Atrophy is the shrinking or decrease in size/number of cells.
• C is correct: Hyperplasia specifically refers to an abnormal or unusual increase in
the number of cells in an organ or tissue.
• D is incorrect: Dysplasia refers to the presence of abnormal types of cells within a
tissue.
5. The cardiac ejection fraction measures the:
A) Pumping ability of the heart
B) Electrical conductivity of the heart
C) Number of beats per minute
D) Oxygen saturation in the blood
Correct Answer: A) Pumping ability of the heart
Rationales:
• A is correct: Ejection fraction is the percentage of blood leaving your heart each
time it contracts, indicating its pumping efficiency.
• B is incorrect: Electrical conductivity is measured by an EKG/ECG.
• C is incorrect: The number of beats per minute is simply the heart rate.
• D is incorrect: Oxygen saturation is measured via pulse oximetry or arterial blood
gas tests.
6. The measure of a tests ability to exclude the possibility of a particular disease is:
A) Sensitivity
B) Specificity
C) Prevalence
D) Validity
Correct Answer: B) Specificity
3
, EDITED BY NURSEMIA
Rationales:
• A is incorrect: Sensitivity measures a test's ability to correctly identify those with
the disease (true positive rate).
• B is correct: Specificity is a test's ability to correctly identify those without the
disease (true negative rate), thereby excluding it.
• C is incorrect: Prevalence is the proportion of a population that has a condition at a
specific time.
• D is incorrect: Validity is a general term for how well a test measures what it claims
to measure.
7. In the US, the motor vehicle citation that results from a refusal to submit to testing
for alcohol is:
A) Reckless driving
B) Vehicular manslaughter
C) Administrative per se
D) Open container violation
Correct Answer: C) Administrative per se
Rationales:
• A is incorrect: Reckless driving involves operating a vehicle with willful disregard for
safety, distinct from testing refusal.
• B is incorrect: This is a severe criminal charge resulting in death.
• C is correct: Under "implied consent" laws, an "Administrative per se" violation
leads to immediate license suspension for refusing a breathalyzer or blood test.
• D is incorrect: This violation involves having open alcohol in the cabin of a vehicle.
8. A substantial financial interest by a beneficiary in the continued life of the insured
is:
A) Indemnity
B) Subrogation
C) Premium reserve
4