Med-Surg II Module 1 – Cardiac
Dysrhythmias Review & Practice
Questions 2026
Several different recordings can be obtained by using a variety of electrode combinations, called? -
ANSWER ✔✨---Leads
a lead is a specific view of - ANSWER ✔✨---the electrical activity of heart.
Continuous ECG monitoring is the standard of care for patients who are at high risk for -
ANSWER ✔✨---arrhythmias
Many systems have the capacity to monitor for changes in ST segments, which are used to identify -
ANSWER ✔✨---the presence of myocardial ischemia or injury.
Two types of continuous ECG monitoring techniques are used in health care settings: -
ANSWER ✔✨---- hardwire cardiac monitoring, found in EDs, critical care units, and progressive
care units; its a cardiac monitor at the patient's bedside for continuous reading
- telemetry, found in general nursing care units or outpatient cardiac rehabilitation programs.
,ST-segment depression is a marker of - ANSWER ✔✨---myocardial ischemia
ST-segment elevation provides evidence of an evolving MI)
:is used to continuously observe the heart for arrhythmias and conduction disorders using one or two
ECG leads. - ANSWER ✔✨---Hardwire cardiac monitoring
A real-time ECG is displayed on - ANSWER ✔✨---a bedside monitor and at a central monitoring
station
A 12-lead is: - ANSWER ✔✨---An ECG machine placed at the patient's side for an immediate
recording, which is a standard 12-lead
The twelve leads show the electrical current through the heart from different planes.
telemetry monitoring - ANSWER ✔✨---- is the transwermission of radio waves from a battery-
operated transwermitter to a central bank of monitors.
- The primary benefit of using telemetry is that the system is wireless, which allows patients to ambulate
while one or two ECG leads are monitored.
- The patient has electrodes placed on the chest with a lead cable that connects to the transwermitter.
- The transwermitter can be placed in a disposable pouch and worn around the neck, or simply secured
to the patient's clothing.
- Most transwermitter batteries are changed every 24 to 48 hours.
The two ECG leads most often selected for continuous ECG monitoring are - ANSWER ✔✨---lead II-
provides the best visualization of atrial depolarization (represented by the P wave).
V1- best records ventricular depolarization and is most helpful when monitoring for certain arrhythmias
(e.g., premature ventricular contractions, tachycardias, bundle branch blocks).
, Ambulatory electrocardiography - ANSWER ✔✨---is a form of continuous or intermittent ECG
home monitoring.
- It is used for longer-term monitoring, since some arrhythmias occur intermittently and are difficult to
capture with a 12-lead ECG in the office setting.
- This monitoring can help to identify the etiology of chest pain, syncope or palpitation caused by
arrhythmias, detect episodes of myocardial ischemia, evaluate effectiveness of treatment of HF and
arrhythmias, and evaluate the functioning of ICDs and pacemakers.
Cardiac implantable electronic devices include - ANSWER ✔✨---pacemakers
ICD
the five-lead system provides up to ________ different lead selections. Unlike the other two systems,
the five-lead system can monitor the activity of the anterior wall of the left ventricle. -
ANSWER ✔✨---seven
The key to the elimination of artifact is using which of the following? - ANSWER ✔✨---proper skin
preparation
Inoperative (inop) monitoring alarms are used to communicate which of the following issues? Select all
that apply - ANSWER ✔✨---- electrode has fallen off
- battery power is low (the system's battery power is low (e.g., telemetry))
- leads are loose
Normally, the coronary arteries dilate to _____ times their usual diameter in response to increased
metabolic demands for oxygen and nutrients. However, coronary arteries affected by atherosclerosis
dilate ____, compromising blood flow to the myocardium and causing ischemia. Therefore,
abnormalities in cardiovascular function are more likely to be detected during times of _________
oxygen demand, or "stress." - ANSWER ✔✨---- four
- less
- increased
Dysrhythmias Review & Practice
Questions 2026
Several different recordings can be obtained by using a variety of electrode combinations, called? -
ANSWER ✔✨---Leads
a lead is a specific view of - ANSWER ✔✨---the electrical activity of heart.
Continuous ECG monitoring is the standard of care for patients who are at high risk for -
ANSWER ✔✨---arrhythmias
Many systems have the capacity to monitor for changes in ST segments, which are used to identify -
ANSWER ✔✨---the presence of myocardial ischemia or injury.
Two types of continuous ECG monitoring techniques are used in health care settings: -
ANSWER ✔✨---- hardwire cardiac monitoring, found in EDs, critical care units, and progressive
care units; its a cardiac monitor at the patient's bedside for continuous reading
- telemetry, found in general nursing care units or outpatient cardiac rehabilitation programs.
,ST-segment depression is a marker of - ANSWER ✔✨---myocardial ischemia
ST-segment elevation provides evidence of an evolving MI)
:is used to continuously observe the heart for arrhythmias and conduction disorders using one or two
ECG leads. - ANSWER ✔✨---Hardwire cardiac monitoring
A real-time ECG is displayed on - ANSWER ✔✨---a bedside monitor and at a central monitoring
station
A 12-lead is: - ANSWER ✔✨---An ECG machine placed at the patient's side for an immediate
recording, which is a standard 12-lead
The twelve leads show the electrical current through the heart from different planes.
telemetry monitoring - ANSWER ✔✨---- is the transwermission of radio waves from a battery-
operated transwermitter to a central bank of monitors.
- The primary benefit of using telemetry is that the system is wireless, which allows patients to ambulate
while one or two ECG leads are monitored.
- The patient has electrodes placed on the chest with a lead cable that connects to the transwermitter.
- The transwermitter can be placed in a disposable pouch and worn around the neck, or simply secured
to the patient's clothing.
- Most transwermitter batteries are changed every 24 to 48 hours.
The two ECG leads most often selected for continuous ECG monitoring are - ANSWER ✔✨---lead II-
provides the best visualization of atrial depolarization (represented by the P wave).
V1- best records ventricular depolarization and is most helpful when monitoring for certain arrhythmias
(e.g., premature ventricular contractions, tachycardias, bundle branch blocks).
, Ambulatory electrocardiography - ANSWER ✔✨---is a form of continuous or intermittent ECG
home monitoring.
- It is used for longer-term monitoring, since some arrhythmias occur intermittently and are difficult to
capture with a 12-lead ECG in the office setting.
- This monitoring can help to identify the etiology of chest pain, syncope or palpitation caused by
arrhythmias, detect episodes of myocardial ischemia, evaluate effectiveness of treatment of HF and
arrhythmias, and evaluate the functioning of ICDs and pacemakers.
Cardiac implantable electronic devices include - ANSWER ✔✨---pacemakers
ICD
the five-lead system provides up to ________ different lead selections. Unlike the other two systems,
the five-lead system can monitor the activity of the anterior wall of the left ventricle. -
ANSWER ✔✨---seven
The key to the elimination of artifact is using which of the following? - ANSWER ✔✨---proper skin
preparation
Inoperative (inop) monitoring alarms are used to communicate which of the following issues? Select all
that apply - ANSWER ✔✨---- electrode has fallen off
- battery power is low (the system's battery power is low (e.g., telemetry))
- leads are loose
Normally, the coronary arteries dilate to _____ times their usual diameter in response to increased
metabolic demands for oxygen and nutrients. However, coronary arteries affected by atherosclerosis
dilate ____, compromising blood flow to the myocardium and causing ischemia. Therefore,
abnormalities in cardiovascular function are more likely to be detected during times of _________
oxygen demand, or "stress." - ANSWER ✔✨---- four
- less
- increased
