AMCA CMAC EXAM 2 NEWEST ACTUAL EXAM WITH COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
Question 1
Which group of factors is most likely to contribute to a patient's blood pressure readings during a
clinical assessment?
A) Activity level, stress, and alcohol use
B) Height, weight, and hair color
C) Eye color, diet, and blood type
D) Sleep patterns, occupation, and handedness
E) Respiratory rate, temperature, and skin turgor
Correct Answer: A) Activity level, stress, and alcohol use
Rationale: Blood pressure is a highly dynamic vital sign influenced by several physiological
and lifestyle variables. Physical activity increases cardiac output, which leads to a
temporary rise in systolic pressure. Stress and anxiety trigger the sympathetic nervous
system's "fight or flight" response, releasing catecholamines like adrenaline that cause
systemic vasoconstriction and elevated heart rate. Alcohol consumption, both acute and
chronic, can stimulate the sympathetic nervous system and impair the baroreceptors that
regulate blood pressure. While height and weight (Option B) may influence long-term
trends, activity and stress are the most immediate contributors to fluctuations during a
visit.
Question 2
In the clinical laboratory, lavender-stoppered vacuum tubes are the primary choice for collecting
which of the following?
A) Coagulation studies
B) Serum chemistry tests
C) Hematology tests
D) Glucose levels
E) Stat electrolytes
Correct Answer: C) Hematology tests
Rationale: Lavender-stoppered tubes contain the additive Ethylenediaminetetraacetic acid
(EDTA). EDTA is an anticoagulant that works by chelating (binding) calcium, which is a
, 2
necessary component of the blood coagulation cascade. This specific additive is the
standard for hematology testing, such as a Complete Blood Count (CBC) or a blood smear,
because it preserves the morphology (shape and size) of the red and white blood cells and
prevents platelet aggregation (clumping). Using a different tube, such as one with heparin,
would distort the cell appearance on a slide.
Question 3
A medical assistant is reviewing a laboratory requisition that includes the abbreviation "PT."
What does this abbreviation represent?
A) Patient Temperature
B) Part-time
C) Prothrombin Time
D) Pulmonary Therapy
E) Percutaneous Treatment
Correct Answer: C) Prothrombin Time
Rationale: PT stands for Prothrombin Time, often referred to as a "Protime." It is a
coagulation test that measures the time it takes for the liquid portion of the blood (plasma)
to clot. This test evaluates the extrinsic and common pathways of the coagulation cascade.
It is most frequently used to monitor the therapeutic levels of patients taking the
anticoagulant medication warfarin (Coumadin). Results are often reported alongside the
International Normalized Ratio (INR) to ensure a standardized result across different
laboratories.
Question 4
To ensure that a medical practice achieves reimbursement from an insurance provider for
services rendered, which of the following must occur?
A) The patient must pay the full balance at the time of service.
B) The diagnostic code must match the procedure code.
C) The physician must be in-network for every possible plan.
D) The clinical medical assistant must sign the insurance claim.
E) The procedure must be performed by a specialist.
, 3
Correct Answer: B) The diagnostic code must match the procedure code.
Rationale: Insurance reimbursement is based on the concept of medical necessity. For a
claim to be paid, the diagnostic code (ICD-10-CM), which identifies the "why" of the visit,
must logically justify the procedure code (CPT), which identifies the "what" of the visit.
This is known as code "linking" or "matching." If the diagnostic code does not support the
procedure—for example, performing an EKG for a diagnosis of "ingrown toenail"—the
insurance company will deny the claim as not medically necessary.
Question 5
A medical assistant is tasked with taking a patient's temperature using a tympanic thermometer.
At which site will this measurement occur?
A) Under the tongue
B) In the axilla
C) On the forehead
D) In the ear
E) In the rectum
Correct Answer: D) In the ear
Rationale: A tympanic thermometer measures the infrared heat energy emitted by the
tympanic membrane (the eardrum). This method is favored in many clinical settings
because it is rapid, non-invasive, and highly accurate. Because the eardrum shares its blood
supply with the hypothalamus (the brain's temperature-regulating center), the tympanic
temperature is an excellent indicator of core body temperature. Proper technique involves
pulling the pinna up and back for adults or down and back for children to ensure a clear
line of sight to the membrane.
Question 6
A flexible spending account (FSA) is a specialized benefit designed to be:
A) Funded entirely by the employer.
B) A loan that the employee must pay back with interest.
C) Funded by the employee and not subject to federal or state taxes.
, 4
D) Used only for emergency room visits.
E) A type of life insurance policy for dependents.
Correct Answer: C) Funded by the employee and not subject to federal or state taxes.
Rationale: An FSA is a "pre-tax" benefit that allows employees to set aside money from
their paychecks into a special account to pay for qualified out-of-pocket medical expenses,
such as deductibles, co-pays, and prescriptions. Because the money is taken out of the
paycheck before taxes are calculated, the employee's taxable income is lowered, resulting in
tax savings. A common characteristic of an FSA is the "use it or lose it" rule, where funds
not used by the end of the plan year (or grace period) are forfeited.
Question 7
Which of the following solutions is the standard antiseptic used to clean a site before routine
venipuncture?
A) 10% Povidone-iodine
B) 70% isopropyl alcohol
C) 0.5% Chlorhexidine gluconate
D) Sterile normal saline
E) Hydrogen peroxide
Correct Answer: B) 70% isopropyl alcohol
Rationale: 70% isopropyl alcohol is the most common antiseptic agent used for routine
blood draws. It effectively reduces the microbial load on the skin surface. The medical
assistant should apply the alcohol using a concentric motion (starting at the center and
moving outward). It is essential to allow the alcohol to air-dry completely; this ensures
maximum antimicrobial action, prevents the patient from feeling a stinging sensation, and
prevents hemolysis (rupturing of red blood cells) of the specimen.
Question 8
During a clinical interview, the patient appears to be experiencing diaphoresis. What is
"diaphoresis" another term for?
A) Difficulty breathing
B) Profuse sweating
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
Question 1
Which group of factors is most likely to contribute to a patient's blood pressure readings during a
clinical assessment?
A) Activity level, stress, and alcohol use
B) Height, weight, and hair color
C) Eye color, diet, and blood type
D) Sleep patterns, occupation, and handedness
E) Respiratory rate, temperature, and skin turgor
Correct Answer: A) Activity level, stress, and alcohol use
Rationale: Blood pressure is a highly dynamic vital sign influenced by several physiological
and lifestyle variables. Physical activity increases cardiac output, which leads to a
temporary rise in systolic pressure. Stress and anxiety trigger the sympathetic nervous
system's "fight or flight" response, releasing catecholamines like adrenaline that cause
systemic vasoconstriction and elevated heart rate. Alcohol consumption, both acute and
chronic, can stimulate the sympathetic nervous system and impair the baroreceptors that
regulate blood pressure. While height and weight (Option B) may influence long-term
trends, activity and stress are the most immediate contributors to fluctuations during a
visit.
Question 2
In the clinical laboratory, lavender-stoppered vacuum tubes are the primary choice for collecting
which of the following?
A) Coagulation studies
B) Serum chemistry tests
C) Hematology tests
D) Glucose levels
E) Stat electrolytes
Correct Answer: C) Hematology tests
Rationale: Lavender-stoppered tubes contain the additive Ethylenediaminetetraacetic acid
(EDTA). EDTA is an anticoagulant that works by chelating (binding) calcium, which is a
, 2
necessary component of the blood coagulation cascade. This specific additive is the
standard for hematology testing, such as a Complete Blood Count (CBC) or a blood smear,
because it preserves the morphology (shape and size) of the red and white blood cells and
prevents platelet aggregation (clumping). Using a different tube, such as one with heparin,
would distort the cell appearance on a slide.
Question 3
A medical assistant is reviewing a laboratory requisition that includes the abbreviation "PT."
What does this abbreviation represent?
A) Patient Temperature
B) Part-time
C) Prothrombin Time
D) Pulmonary Therapy
E) Percutaneous Treatment
Correct Answer: C) Prothrombin Time
Rationale: PT stands for Prothrombin Time, often referred to as a "Protime." It is a
coagulation test that measures the time it takes for the liquid portion of the blood (plasma)
to clot. This test evaluates the extrinsic and common pathways of the coagulation cascade.
It is most frequently used to monitor the therapeutic levels of patients taking the
anticoagulant medication warfarin (Coumadin). Results are often reported alongside the
International Normalized Ratio (INR) to ensure a standardized result across different
laboratories.
Question 4
To ensure that a medical practice achieves reimbursement from an insurance provider for
services rendered, which of the following must occur?
A) The patient must pay the full balance at the time of service.
B) The diagnostic code must match the procedure code.
C) The physician must be in-network for every possible plan.
D) The clinical medical assistant must sign the insurance claim.
E) The procedure must be performed by a specialist.
, 3
Correct Answer: B) The diagnostic code must match the procedure code.
Rationale: Insurance reimbursement is based on the concept of medical necessity. For a
claim to be paid, the diagnostic code (ICD-10-CM), which identifies the "why" of the visit,
must logically justify the procedure code (CPT), which identifies the "what" of the visit.
This is known as code "linking" or "matching." If the diagnostic code does not support the
procedure—for example, performing an EKG for a diagnosis of "ingrown toenail"—the
insurance company will deny the claim as not medically necessary.
Question 5
A medical assistant is tasked with taking a patient's temperature using a tympanic thermometer.
At which site will this measurement occur?
A) Under the tongue
B) In the axilla
C) On the forehead
D) In the ear
E) In the rectum
Correct Answer: D) In the ear
Rationale: A tympanic thermometer measures the infrared heat energy emitted by the
tympanic membrane (the eardrum). This method is favored in many clinical settings
because it is rapid, non-invasive, and highly accurate. Because the eardrum shares its blood
supply with the hypothalamus (the brain's temperature-regulating center), the tympanic
temperature is an excellent indicator of core body temperature. Proper technique involves
pulling the pinna up and back for adults or down and back for children to ensure a clear
line of sight to the membrane.
Question 6
A flexible spending account (FSA) is a specialized benefit designed to be:
A) Funded entirely by the employer.
B) A loan that the employee must pay back with interest.
C) Funded by the employee and not subject to federal or state taxes.
, 4
D) Used only for emergency room visits.
E) A type of life insurance policy for dependents.
Correct Answer: C) Funded by the employee and not subject to federal or state taxes.
Rationale: An FSA is a "pre-tax" benefit that allows employees to set aside money from
their paychecks into a special account to pay for qualified out-of-pocket medical expenses,
such as deductibles, co-pays, and prescriptions. Because the money is taken out of the
paycheck before taxes are calculated, the employee's taxable income is lowered, resulting in
tax savings. A common characteristic of an FSA is the "use it or lose it" rule, where funds
not used by the end of the plan year (or grace period) are forfeited.
Question 7
Which of the following solutions is the standard antiseptic used to clean a site before routine
venipuncture?
A) 10% Povidone-iodine
B) 70% isopropyl alcohol
C) 0.5% Chlorhexidine gluconate
D) Sterile normal saline
E) Hydrogen peroxide
Correct Answer: B) 70% isopropyl alcohol
Rationale: 70% isopropyl alcohol is the most common antiseptic agent used for routine
blood draws. It effectively reduces the microbial load on the skin surface. The medical
assistant should apply the alcohol using a concentric motion (starting at the center and
moving outward). It is essential to allow the alcohol to air-dry completely; this ensures
maximum antimicrobial action, prevents the patient from feeling a stinging sensation, and
prevents hemolysis (rupturing of red blood cells) of the specimen.
Question 8
During a clinical interview, the patient appears to be experiencing diaphoresis. What is
"diaphoresis" another term for?
A) Difficulty breathing
B) Profuse sweating
