MA 2A Exam with
questions and well verified
answers already graded A+
2026 EDITION
Which of the following is the primary function of the red blood cells?
A. Transport oxygen to tissues
B. Fight infection
C. Form blood clots
D. Regulate body temperature
Answer: A
Rationale A: Correct. RBCs contain hemoglobin, which binds oxygen in the
lungs and delivers it to systemic tissues.
Rationale B: Incorrect. White blood cells (leukocytes) are primarily
responsible for immune defense.
Rationale C: Incorrect. Platelets (thrombocytes) are responsible for
hemostasis and clot formation.
Rationale D: Incorrect. Temperature regulation is primarily managed by the
hypothalamus and vascular responses, not RBCs.
,A patient presents with a pulse rate of 118 beats per minute. This is
documented as:
A. Bradycardia
B. Tachycardia
C. Arrhythmia
D. Dyspnea
Answer: B
Rationale A: Incorrect. Bradycardia refers to a heart rate below 60 bpm in
adults.
Rationale B: Correct. Tachycardia is defined as a resting heart rate
exceeding 100 bpm.
Rationale C: Incorrect. Arrhythmia refers to an irregular rhythm, not
specifically a fast rate.
Rationale D: Incorrect. Dyspnea is the medical term for shortness of breath.
When performing a venipuncture, the tourniquet should be applied:
A. 1–2 inches below the puncture site
B. 3–4 inches above the puncture site
C. Directly over the puncture site
D. 6 inches above the puncture site
Answer: B
Rationale A: Incorrect. Placing it below the site restricts venous return and
makes access difficult.
Rationale B: Correct. Standard CLSI guidelines recommend placing the
tourniquet 3–4 inches above the site to engorge veins without
compromising arterial flow.
Rationale C: Incorrect. Direct placement can cause tissue damage and
inaccurate results.
,Rationale D: Incorrect. Six inches is too far and may not adequately
engorge the target vein.
Which vitamin is essential for blood coagulation?
A. Vitamin A
B. Vitamin C
C. Vitamin K
D. Vitamin D
Answer: C
Rationale A: Incorrect. Vitamin A supports vision and immune function.
Rationale B: Incorrect. Vitamin C aids collagen synthesis and iron
absorption.
Rationale C: Correct. Vitamin K is required for hepatic synthesis of clotting
factors II, VII, IX, and X.
Rationale D: Incorrect. Vitamin D regulates calcium and phosphorus
metabolism for bone health.
A medical assistant is preparing to administer a subcutaneous injection.
The appropriate needle angle is:
A. 90 degrees
B. 45–90 degrees depending on tissue
C. 10–15 degrees
D. 180 degrees
Answer: B
Rationale A: Incorrect. 90 degrees is standard for intramuscular injections.
Rationale B: Correct. Subcutaneous injections use 45 degrees for thin
tissue or 90 degrees if pinching 2 inches of tissue.
Rationale C: Incorrect. 10–15 degrees is used for intradermal injections.
Rationale D: Incorrect. 180 degrees is anatomically impossible for injection.
, Which of the following pathogens is classified as a bloodborne pathogen?
A. Influenza virus
B. Mycobacterium tuberculosis
C. Hepatitis B virus
D. Clostridium difficile
Answer: C
Rationale A: Incorrect. Influenza is primarily transmitted via respiratory
droplets.
Rationale B: Incorrect. TB spreads through airborne particles.
Rationale C: Correct. HBV, HCV, and HIV are major bloodborne pathogens
regulated under OSHA.
Rationale D: Incorrect. C. diff spreads via fecal-oral route and contact with
spores.
The normal adult respiratory rate is:
A. 8–10 breaths/min
B. 12–20 breaths/min
C. 22–26 breaths/min
D. 30–35 breaths/min
Answer: B
Rationale A: Incorrect. Rates below 12 indicate bradypnea, often requiring
assessment.
Rationale B: Correct. 12–20 breaths per minute is the accepted normal
range for resting adults.
Rationale C: Incorrect. 22+ indicates tachypnea, often from fever, anxiety,
or hypoxia.
Rationale D: Incorrect. 30+ suggests significant respiratory distress or
metabolic acidosis.
Which instrument is used to measure oxygen saturation?
questions and well verified
answers already graded A+
2026 EDITION
Which of the following is the primary function of the red blood cells?
A. Transport oxygen to tissues
B. Fight infection
C. Form blood clots
D. Regulate body temperature
Answer: A
Rationale A: Correct. RBCs contain hemoglobin, which binds oxygen in the
lungs and delivers it to systemic tissues.
Rationale B: Incorrect. White blood cells (leukocytes) are primarily
responsible for immune defense.
Rationale C: Incorrect. Platelets (thrombocytes) are responsible for
hemostasis and clot formation.
Rationale D: Incorrect. Temperature regulation is primarily managed by the
hypothalamus and vascular responses, not RBCs.
,A patient presents with a pulse rate of 118 beats per minute. This is
documented as:
A. Bradycardia
B. Tachycardia
C. Arrhythmia
D. Dyspnea
Answer: B
Rationale A: Incorrect. Bradycardia refers to a heart rate below 60 bpm in
adults.
Rationale B: Correct. Tachycardia is defined as a resting heart rate
exceeding 100 bpm.
Rationale C: Incorrect. Arrhythmia refers to an irregular rhythm, not
specifically a fast rate.
Rationale D: Incorrect. Dyspnea is the medical term for shortness of breath.
When performing a venipuncture, the tourniquet should be applied:
A. 1–2 inches below the puncture site
B. 3–4 inches above the puncture site
C. Directly over the puncture site
D. 6 inches above the puncture site
Answer: B
Rationale A: Incorrect. Placing it below the site restricts venous return and
makes access difficult.
Rationale B: Correct. Standard CLSI guidelines recommend placing the
tourniquet 3–4 inches above the site to engorge veins without
compromising arterial flow.
Rationale C: Incorrect. Direct placement can cause tissue damage and
inaccurate results.
,Rationale D: Incorrect. Six inches is too far and may not adequately
engorge the target vein.
Which vitamin is essential for blood coagulation?
A. Vitamin A
B. Vitamin C
C. Vitamin K
D. Vitamin D
Answer: C
Rationale A: Incorrect. Vitamin A supports vision and immune function.
Rationale B: Incorrect. Vitamin C aids collagen synthesis and iron
absorption.
Rationale C: Correct. Vitamin K is required for hepatic synthesis of clotting
factors II, VII, IX, and X.
Rationale D: Incorrect. Vitamin D regulates calcium and phosphorus
metabolism for bone health.
A medical assistant is preparing to administer a subcutaneous injection.
The appropriate needle angle is:
A. 90 degrees
B. 45–90 degrees depending on tissue
C. 10–15 degrees
D. 180 degrees
Answer: B
Rationale A: Incorrect. 90 degrees is standard for intramuscular injections.
Rationale B: Correct. Subcutaneous injections use 45 degrees for thin
tissue or 90 degrees if pinching 2 inches of tissue.
Rationale C: Incorrect. 10–15 degrees is used for intradermal injections.
Rationale D: Incorrect. 180 degrees is anatomically impossible for injection.
, Which of the following pathogens is classified as a bloodborne pathogen?
A. Influenza virus
B. Mycobacterium tuberculosis
C. Hepatitis B virus
D. Clostridium difficile
Answer: C
Rationale A: Incorrect. Influenza is primarily transmitted via respiratory
droplets.
Rationale B: Incorrect. TB spreads through airborne particles.
Rationale C: Correct. HBV, HCV, and HIV are major bloodborne pathogens
regulated under OSHA.
Rationale D: Incorrect. C. diff spreads via fecal-oral route and contact with
spores.
The normal adult respiratory rate is:
A. 8–10 breaths/min
B. 12–20 breaths/min
C. 22–26 breaths/min
D. 30–35 breaths/min
Answer: B
Rationale A: Incorrect. Rates below 12 indicate bradypnea, often requiring
assessment.
Rationale B: Correct. 12–20 breaths per minute is the accepted normal
range for resting adults.
Rationale C: Incorrect. 22+ indicates tachypnea, often from fever, anxiety,
or hypoxia.
Rationale D: Incorrect. 30+ suggests significant respiratory distress or
metabolic acidosis.
Which instrument is used to measure oxygen saturation?
