EKG ACQUISITION UPDATED SET ANSWERS AND
QUESTIONS SET A+
✔✔How do you reduce AC interference? - ✔✔-ensure that the patient's cell phone is off
or moved away from the patient during the procedure
-the exam table is pulled away from the wall
-the ground prong of the three-prong plug is tight and fits snugly into the outlet
✔✔What does an interrupted baseline look like on an EKG tracing? - ✔✔a break in the
baseline or a fully non-recorded lead
✔✔What causes an interrupted baseline? - ✔✔broke lead wires or disconnected leads
✔✔How do you prevent an interrupted baseline? - ✔✔regular observation and
maintenance of the lead wires as well as double-checking connections prior to running
the EKG
✔✔The recorded calibration mark is measured at 5 mm wide and 10 mm high. This
demonstrates what? - ✔✔the universal standard is being applied
(half speed= 2.5 mm, wide, 2x speed= 20 mm high)
✔✔What statement regarding the electrical conduction system is true - ✔✔The SA node
is located in the wall of the right atrium
✔✔When placing the precordial leads (chest leads), V4 is placed in what location? -
✔✔fifth intercostal space at the left midclavicular line
✔✔In stress testing or ambulatory monitoring, what purpose does the green lead serve?
- ✔✔it is a ground and helps reduce artifacts
✔✔Following best practices how frequently should an EKG tech disinfect lead wires and
clips? - ✔✔after each use
, ✔✔An EKG tech should recognize that what can result in an interrupted baseline on the
patient's EKG tracing? - ✔✔corroded lead wires
✔✔An EKG tech should identify that what patient condition during stress testing would
require emergency intervention by the tech? - ✔✔syncope (fainting)
✔✔An EKG tech is preparing to perform a standard 12-lead EKG. In what location
should the tech place the electrode for lead V1? - ✔✔4th intercostal space at the right
sternal border
✔✔An EKG tech is preparing to apply leads to a patient who is scheduled for 5-lead
Holter monitoring. in what location should the tech apply the ground electrode? -
✔✔right lower abdomen
✔✔An EKG tech is performing a 12-lead EKG for a patient who has dextrocardia. In
what location should the tech place electrode for lead V5? - ✔✔right anterior axillary
line, 5th intercostal space
✔✔An EKG tech is reviewing an EKG tracing and notices that the calibration mark
measures 10 mm high and 10 mm wide. The tech should expect to find the machine is
using what setting? - ✔✔50 mm/second
✔✔An EKG tech applies a pulse oximetry device who is undergoing a stress test. The
pulse oximetry device provides information about what test parameters? - ✔✔oxygen
saturation
✔✔An EKG tech is preparing for an exercise stress test. What is the correct lead
placement for this procedure? - ✔✔limb leads are placed on the torso
✔✔An EKG tech is preparing to perform an exercise stress test for a patient. What
action should the tech take? - ✔✔shave areas with excess hair before applying
electrodes
✔✔An EKG tech is preparing to perform CPR on an adult patient who is unresponsive.
What site should the tech use to palpate the patient's pulse prior to initiating CPR? -
✔✔carotid
✔✔What is a type of continuous monitoring performed in an inpatient health care
facility? - ✔✔telemetry monitoring (this is transmitted to a central location for evaluation)
QUESTIONS SET A+
✔✔How do you reduce AC interference? - ✔✔-ensure that the patient's cell phone is off
or moved away from the patient during the procedure
-the exam table is pulled away from the wall
-the ground prong of the three-prong plug is tight and fits snugly into the outlet
✔✔What does an interrupted baseline look like on an EKG tracing? - ✔✔a break in the
baseline or a fully non-recorded lead
✔✔What causes an interrupted baseline? - ✔✔broke lead wires or disconnected leads
✔✔How do you prevent an interrupted baseline? - ✔✔regular observation and
maintenance of the lead wires as well as double-checking connections prior to running
the EKG
✔✔The recorded calibration mark is measured at 5 mm wide and 10 mm high. This
demonstrates what? - ✔✔the universal standard is being applied
(half speed= 2.5 mm, wide, 2x speed= 20 mm high)
✔✔What statement regarding the electrical conduction system is true - ✔✔The SA node
is located in the wall of the right atrium
✔✔When placing the precordial leads (chest leads), V4 is placed in what location? -
✔✔fifth intercostal space at the left midclavicular line
✔✔In stress testing or ambulatory monitoring, what purpose does the green lead serve?
- ✔✔it is a ground and helps reduce artifacts
✔✔Following best practices how frequently should an EKG tech disinfect lead wires and
clips? - ✔✔after each use
, ✔✔An EKG tech should recognize that what can result in an interrupted baseline on the
patient's EKG tracing? - ✔✔corroded lead wires
✔✔An EKG tech should identify that what patient condition during stress testing would
require emergency intervention by the tech? - ✔✔syncope (fainting)
✔✔An EKG tech is preparing to perform a standard 12-lead EKG. In what location
should the tech place the electrode for lead V1? - ✔✔4th intercostal space at the right
sternal border
✔✔An EKG tech is preparing to apply leads to a patient who is scheduled for 5-lead
Holter monitoring. in what location should the tech apply the ground electrode? -
✔✔right lower abdomen
✔✔An EKG tech is performing a 12-lead EKG for a patient who has dextrocardia. In
what location should the tech place electrode for lead V5? - ✔✔right anterior axillary
line, 5th intercostal space
✔✔An EKG tech is reviewing an EKG tracing and notices that the calibration mark
measures 10 mm high and 10 mm wide. The tech should expect to find the machine is
using what setting? - ✔✔50 mm/second
✔✔An EKG tech applies a pulse oximetry device who is undergoing a stress test. The
pulse oximetry device provides information about what test parameters? - ✔✔oxygen
saturation
✔✔An EKG tech is preparing for an exercise stress test. What is the correct lead
placement for this procedure? - ✔✔limb leads are placed on the torso
✔✔An EKG tech is preparing to perform an exercise stress test for a patient. What
action should the tech take? - ✔✔shave areas with excess hair before applying
electrodes
✔✔An EKG tech is preparing to perform CPR on an adult patient who is unresponsive.
What site should the tech use to palpate the patient's pulse prior to initiating CPR? -
✔✔carotid
✔✔What is a type of continuous monitoring performed in an inpatient health care
facility? - ✔✔telemetry monitoring (this is transmitted to a central location for evaluation)
