1|Page
CCMA Certification Study Guide
2026|Complete Exam Set With Perfectly
Answered Questions
SA NODE - correct-answer - the pace-maker of the heart; where the impulse
conduction of the heart usually starts; located in the top of the right atrium just
below superior vena cava
AV node - correct-answer - Located at the posterior septal wall at the right atrium
just above the tricuspid valve. There is a 1/10 second delay of electrical activity at
this level to allow blood to flow from the atria to the ventricles.
Lead I - correct-answer - Left arm is positive and right arm is negative (LA-RA)
Lead II - correct-answer - Left leg is positive and right arm is negative (LL-RA)
,2|Page
Lead III - correct-answer - Left leg is positive and left arm is negative (LL-LA)
aVR - correct-answer - The right arm is positive and the other limbs are negative
aVL - correct-answer - The left arm is positive and the other limbs are negative
aVF - correct-answer - The left leg (or foot) is positive and the other limbs are
negative
V1 - correct-answer - 4th intercostal space, right sternal border
V2 - correct-answer - 4th intercostal space, left sternal border
,3|Page
V3 - correct-answer - equidistant between v2 and v4
V4 - correct-answer - 5th intercostal space, on the left midclavicular line
V5 - correct-answer - 5th intercostal space at the anterior axillary line
V6 - correct-answer - 5th intercostal space, midaxillary line
1mm - correct-answer - 1 small square on eKG grid is equal to
5mm - correct-answer - 1 large square on EKG grid is equal to
, 4|Page
1mv - correct-answer - 2 large squares on EKG grid is equal to
.04 seconds or 40m seconds - correct-answer - 1 small square on eKG grid is equal
to how much time?
.2 seconds or 200m seconds - correct-answer - 1 large square on eKG grid is equal
to how much time?
1 second or 1000 m seconds - correct-answer - 5 large squares on eKG grid is
equal to how much time?
25mm per second - correct-answer - The running speed of an EKG is?
Horizontal axis - correct-answer - What represents time on an EKG?
CCMA Certification Study Guide
2026|Complete Exam Set With Perfectly
Answered Questions
SA NODE - correct-answer - the pace-maker of the heart; where the impulse
conduction of the heart usually starts; located in the top of the right atrium just
below superior vena cava
AV node - correct-answer - Located at the posterior septal wall at the right atrium
just above the tricuspid valve. There is a 1/10 second delay of electrical activity at
this level to allow blood to flow from the atria to the ventricles.
Lead I - correct-answer - Left arm is positive and right arm is negative (LA-RA)
Lead II - correct-answer - Left leg is positive and right arm is negative (LL-RA)
,2|Page
Lead III - correct-answer - Left leg is positive and left arm is negative (LL-LA)
aVR - correct-answer - The right arm is positive and the other limbs are negative
aVL - correct-answer - The left arm is positive and the other limbs are negative
aVF - correct-answer - The left leg (or foot) is positive and the other limbs are
negative
V1 - correct-answer - 4th intercostal space, right sternal border
V2 - correct-answer - 4th intercostal space, left sternal border
,3|Page
V3 - correct-answer - equidistant between v2 and v4
V4 - correct-answer - 5th intercostal space, on the left midclavicular line
V5 - correct-answer - 5th intercostal space at the anterior axillary line
V6 - correct-answer - 5th intercostal space, midaxillary line
1mm - correct-answer - 1 small square on eKG grid is equal to
5mm - correct-answer - 1 large square on EKG grid is equal to
, 4|Page
1mv - correct-answer - 2 large squares on EKG grid is equal to
.04 seconds or 40m seconds - correct-answer - 1 small square on eKG grid is equal
to how much time?
.2 seconds or 200m seconds - correct-answer - 1 large square on eKG grid is equal
to how much time?
1 second or 1000 m seconds - correct-answer - 5 large squares on eKG grid is
equal to how much time?
25mm per second - correct-answer - The running speed of an EKG is?
Horizontal axis - correct-answer - What represents time on an EKG?
