AMCA CMAC CERTIFICATION
PRACTICE EXAM QUESTIONS AND
ANSWERS
1. Which of the following leads is considered the ‘ground’ lead in a standard 12-lead EKG?
A. Right Arm (RA)
B. Right Leg (RL)
C. Left Leg (LL)
D. Left Arm (LA)
Answer: B
Conceptual Explanation: In a standard 12-lead EKG, the Right Leg (RL) electrode serves
as the reference or ground lead to reduce electrical interference.
2. When performing a venipuncture, what is the maximum recommended time a tourniquet
should be left on a patient’s arm?
A. 30 seconds
B. 2 minutes
C. 60 seconds
D. 3 minutes
,Answer: C
Conceptual Explanation: To prevent hemoconcentration and altered test results, the
tourniquet should not remain on the arm for longer than 60 seconds (1 minute).
3. A patient presents with a heart rate of 115 beats per minute. Which medical term correctly
describes this condition?
A. Tachycardia
B. Bradycardia
C. Arrhythmia
D. Bradypnea
Answer: A
Conceptual Explanation: Tachycardia is defined as a resting heart rate greater than 100
beats per minute.
4. In the order of draw for venipuncture, which color tube is used for a Complete Blood Count
(CBC)?
A. Light Blue
B. Green
C. Lavender
D. Red
Answer: C
, Conceptual Explanation: The Lavender-top tube contains EDTA and is used for
hematology tests like the Complete Blood Count (CBC).
5. Which of the following is the correct site for an intramuscular (IM) injection in an infant?
A. Deltoid
B. Dorsogluteal
C. Ventrogluteal
D. Vastus Lateralis
Answer: D
Conceptual Explanation: The Vastus Lateralis (thigh) is the preferred site for IM
injections in infants because it is the most developed muscle group at that age.
6. What is the standard paper speed for an EKG machine?
A. 10 mm/sec
B. 5 mm/sec
C. 50 mm/sec
D. 25 mm/sec
Answer: D
Conceptual Explanation: The standard recording speed for an EKG is 25 mm per second.
PRACTICE EXAM QUESTIONS AND
ANSWERS
1. Which of the following leads is considered the ‘ground’ lead in a standard 12-lead EKG?
A. Right Arm (RA)
B. Right Leg (RL)
C. Left Leg (LL)
D. Left Arm (LA)
Answer: B
Conceptual Explanation: In a standard 12-lead EKG, the Right Leg (RL) electrode serves
as the reference or ground lead to reduce electrical interference.
2. When performing a venipuncture, what is the maximum recommended time a tourniquet
should be left on a patient’s arm?
A. 30 seconds
B. 2 minutes
C. 60 seconds
D. 3 minutes
,Answer: C
Conceptual Explanation: To prevent hemoconcentration and altered test results, the
tourniquet should not remain on the arm for longer than 60 seconds (1 minute).
3. A patient presents with a heart rate of 115 beats per minute. Which medical term correctly
describes this condition?
A. Tachycardia
B. Bradycardia
C. Arrhythmia
D. Bradypnea
Answer: A
Conceptual Explanation: Tachycardia is defined as a resting heart rate greater than 100
beats per minute.
4. In the order of draw for venipuncture, which color tube is used for a Complete Blood Count
(CBC)?
A. Light Blue
B. Green
C. Lavender
D. Red
Answer: C
, Conceptual Explanation: The Lavender-top tube contains EDTA and is used for
hematology tests like the Complete Blood Count (CBC).
5. Which of the following is the correct site for an intramuscular (IM) injection in an infant?
A. Deltoid
B. Dorsogluteal
C. Ventrogluteal
D. Vastus Lateralis
Answer: D
Conceptual Explanation: The Vastus Lateralis (thigh) is the preferred site for IM
injections in infants because it is the most developed muscle group at that age.
6. What is the standard paper speed for an EKG machine?
A. 10 mm/sec
B. 5 mm/sec
C. 50 mm/sec
D. 25 mm/sec
Answer: D
Conceptual Explanation: The standard recording speed for an EKG is 25 mm per second.
