12-LEAD EKG - EMS1 EXAM WITH
CORRECT ANSWERS
2025
Determine if the ST segment is elevated and if so, how many boxes?
a) 1
b) 2
c) 3
d) More than 3 ( correct answers ) More than 3
Determine if the ST segment is elevated and if so, how many boxes? V2 Strip
e) 5
f) 6
g) 7
h) 8 ( correct answers ) 8
Determine if the ST segment is elevated and if so, how many boxes? V4 Strip
i) 7
j) 8
k) 9
l) 10 ( correct answers ) 9
Determine if the ST segment is elevated and if so, how many boxes? V4
(shark out of water) Strip
m)7
n) 8
o) 9
p) 10 ( correct answers ) 9
Once a 12 lead EKG has been obtained, how long should the healthcare
provider take before transmitting the 12 lead EKG to the receiving hospital
so that activation of the cath lab can occur?
q) Within 15 minutes
r) Within 10 minutes
s) Within 5 minutes
t) There is not a time limit on this activity ( correct
answers ) Within 10 minutes
As blood is pumped out of the right ventricle, where does it go next?
u) To the left atria
v) To the left Ventricle to be pumped to the body
w) To the lungs for oxygenation
x) Through the right coronary artery ( correct answers ) To the lungs for
oxygenation
GRADED
A+
, In the basic EKG, the P wave represents? Select all that apply
a) The depolarization of the left atria
b) The repolarization of the left atria
c) The depolarization of the right atria
d)The repolarization of the right atria ( correct answers ) The
depolarization of the left atria AND The depolarization of the right atria
A normal QRS interval should be between:
e) 0.06 - 0.10 seconds
f) 0.08 - 0.10 seconds
g) 0.08 - 0.12 seconds
h) 0.10 - 0.12 seconds ( correct answers ) 0.08 - 0.12 seconds
What is the primary reason for not getting a clear tracing on a 12 lead
EKG?
i) Cable movement
j) Patient movement
k) 60 cycle interference
l) Vehicle movement ( correct answers ) Patient movement
Is the ST segment: (Single QRS Segment)
m)Depressed
n) Elevated
o) Flat
p) Undetermined ( correct answers ) Elevated
Is the ST segment: (6 second Strip with arrows)
q) Depressed
r) Elevated
s) Flat
t) Undetermined ( correct answers ) Depressed
Is the ST segment: (12 Lead)
a) Depressed
b) Elevated
c) Flat
d) Undetermined ( correct Fla
answers ) t
Is the ST segment: (12 Lead) x2
a) Depressed
b) Elevated
c) Flat
d) Undetermined ( correct Elevate
answers ) d
Do you see ST elevation and if so, what area of the heart is indicated? (ST
Depression) x2
a.) Lateral
GRADED
A+
CORRECT ANSWERS
2025
Determine if the ST segment is elevated and if so, how many boxes?
a) 1
b) 2
c) 3
d) More than 3 ( correct answers ) More than 3
Determine if the ST segment is elevated and if so, how many boxes? V2 Strip
e) 5
f) 6
g) 7
h) 8 ( correct answers ) 8
Determine if the ST segment is elevated and if so, how many boxes? V4 Strip
i) 7
j) 8
k) 9
l) 10 ( correct answers ) 9
Determine if the ST segment is elevated and if so, how many boxes? V4
(shark out of water) Strip
m)7
n) 8
o) 9
p) 10 ( correct answers ) 9
Once a 12 lead EKG has been obtained, how long should the healthcare
provider take before transmitting the 12 lead EKG to the receiving hospital
so that activation of the cath lab can occur?
q) Within 15 minutes
r) Within 10 minutes
s) Within 5 minutes
t) There is not a time limit on this activity ( correct
answers ) Within 10 minutes
As blood is pumped out of the right ventricle, where does it go next?
u) To the left atria
v) To the left Ventricle to be pumped to the body
w) To the lungs for oxygenation
x) Through the right coronary artery ( correct answers ) To the lungs for
oxygenation
GRADED
A+
, In the basic EKG, the P wave represents? Select all that apply
a) The depolarization of the left atria
b) The repolarization of the left atria
c) The depolarization of the right atria
d)The repolarization of the right atria ( correct answers ) The
depolarization of the left atria AND The depolarization of the right atria
A normal QRS interval should be between:
e) 0.06 - 0.10 seconds
f) 0.08 - 0.10 seconds
g) 0.08 - 0.12 seconds
h) 0.10 - 0.12 seconds ( correct answers ) 0.08 - 0.12 seconds
What is the primary reason for not getting a clear tracing on a 12 lead
EKG?
i) Cable movement
j) Patient movement
k) 60 cycle interference
l) Vehicle movement ( correct answers ) Patient movement
Is the ST segment: (Single QRS Segment)
m)Depressed
n) Elevated
o) Flat
p) Undetermined ( correct answers ) Elevated
Is the ST segment: (6 second Strip with arrows)
q) Depressed
r) Elevated
s) Flat
t) Undetermined ( correct answers ) Depressed
Is the ST segment: (12 Lead)
a) Depressed
b) Elevated
c) Flat
d) Undetermined ( correct Fla
answers ) t
Is the ST segment: (12 Lead) x2
a) Depressed
b) Elevated
c) Flat
d) Undetermined ( correct Elevate
answers ) d
Do you see ST elevation and if so, what area of the heart is indicated? (ST
Depression) x2
a.) Lateral
GRADED
A+
