CCT Exam Practice - Performing Resting
ECG UPDATED ACTUAL Exam Questions
and CORRECT Answers
proper skin preparation for ECG - CORRECT ANSWER - - clip excess hair from
application sites to ensure proper skin contact with the electrode (as needed)
- cleanse site with mild soap and water (avoid using alcohol)
- if the patient is wearing lotion, it should be washed off prior to the placement of electrodes
- dry skin completely before applying electrodes
- light exfoliation of the skin site
the quality of the signal received from the electrodes is a direct result of skin preparation and
lead placement.
approach the patient from the __________ when performing an ECG - CORRECT
ANSWER - left side
calibration of ECG machine - CORRECT ANSWER - 10 mm height and recorded at 25
mm/sec
limb leads - CORRECT ANSWER - RA, LA, RL, LL
bipolar leads are - CORRECT ANSWER - three leads with negative and positive poles
lead I, lead II, lead III
lead I - CORRECT ANSWER - right arm (-) to left arm (+)
lead II - CORRECT ANSWER - right arm (-) to left leg (+)
, lead III - CORRECT ANSWER - left arm (-) to left leg (+)
Einthoven's triangle - CORRECT ANSWER - the triangle around the heart formed by the
bipolar limb leads
Einthoven's law - CORRECT ANSWER - lead I + lead III = lead II; lead II should have
the tallest QRS of the bipolar leads
augmented leads - CORRECT ANSWER - unipolar limb leads identified as aVR, aVL,
and aVF
all positive
aVR - CORRECT ANSWER - positive pole on right arm
aVL - CORRECT ANSWER - positive pole on left arm
aVF - CORRECT ANSWER - positive pole on left foot
chest leads (precordial leads) - CORRECT ANSWER - V1, V2, V3, V4, V5, V6
V1 - CORRECT ANSWER - 4th intercostal space to the right of the sternum
V2 - CORRECT ANSWER - 4th intercostal space to the left of the sternum
V3 - CORRECT ANSWER - between V2 and V4
V4 - CORRECT ANSWER - 5th intercostal space, left midclavicular line
ECG UPDATED ACTUAL Exam Questions
and CORRECT Answers
proper skin preparation for ECG - CORRECT ANSWER - - clip excess hair from
application sites to ensure proper skin contact with the electrode (as needed)
- cleanse site with mild soap and water (avoid using alcohol)
- if the patient is wearing lotion, it should be washed off prior to the placement of electrodes
- dry skin completely before applying electrodes
- light exfoliation of the skin site
the quality of the signal received from the electrodes is a direct result of skin preparation and
lead placement.
approach the patient from the __________ when performing an ECG - CORRECT
ANSWER - left side
calibration of ECG machine - CORRECT ANSWER - 10 mm height and recorded at 25
mm/sec
limb leads - CORRECT ANSWER - RA, LA, RL, LL
bipolar leads are - CORRECT ANSWER - three leads with negative and positive poles
lead I, lead II, lead III
lead I - CORRECT ANSWER - right arm (-) to left arm (+)
lead II - CORRECT ANSWER - right arm (-) to left leg (+)
, lead III - CORRECT ANSWER - left arm (-) to left leg (+)
Einthoven's triangle - CORRECT ANSWER - the triangle around the heart formed by the
bipolar limb leads
Einthoven's law - CORRECT ANSWER - lead I + lead III = lead II; lead II should have
the tallest QRS of the bipolar leads
augmented leads - CORRECT ANSWER - unipolar limb leads identified as aVR, aVL,
and aVF
all positive
aVR - CORRECT ANSWER - positive pole on right arm
aVL - CORRECT ANSWER - positive pole on left arm
aVF - CORRECT ANSWER - positive pole on left foot
chest leads (precordial leads) - CORRECT ANSWER - V1, V2, V3, V4, V5, V6
V1 - CORRECT ANSWER - 4th intercostal space to the right of the sternum
V2 - CORRECT ANSWER - 4th intercostal space to the left of the sternum
V3 - CORRECT ANSWER - between V2 and V4
V4 - CORRECT ANSWER - 5th intercostal space, left midclavicular line
