EKG test 2

50問 • 1年前

Karla A Cedano

通報

問題一覧

In pacing, sensitivity refers to ___

ability of a pacemaker to recognize and respond to instructions electrical activity

The first letter of the pacemaker identification code represents___

the chamber paced

Capture is___

ability of pacing stimulus to successfully depolarize the cardiac chamber that is being paced

The second letter of the pacemaker identification code represents____

the chamber sensed

where should the positive electrode for lead V5 be positioned?

left anterior axilary line at the same line as V4

Lead V1 views the__

septum

Lead aVL views the___

lateral wall of left ventricle

Anterior or lateral wall myocardial infarctions are most often a result of an occlusion of the ____coronary artery.

lateral

Lead V5 views the ____ wall of the left ventricle

lateral

The inferior wall of the left ventricle is supplied by the _____coronary artery in most of the population.

right

Where should the positive electrode for lead V1 be positioned?

right side of the sternum, fourth intercostal space

Which leads face the septum?

V1, V2

Lead II views the ___ wall of the left ventricle

inferior

Hyperthory refers to a(n)_____

increase in the tickness of a heart chamber because of chronic pressure overload

Patients who experience a(n) ____myocardial infarction have a greater incidence of heart failure and cardiogenic shock than those who have myocardial infarctions affecting other areas of the left ventricle.

What is meant by the term pulseless electrical activity (PEA)?

an organized rhythm on the cardiac monitor although a pulse is not present

Transcutaneous pacing is the treatment of choice for pulseless ventricular tachycardia or ventricular fibrillation.

false

An ECG rhythm strip shows a regular ventricular rhythm at a rate of 30 beats/min, more P waves than QRS complexes (the P waves occur regularly), a variable PR interval, and a QRS duration of 0.14 second. This rhythm is____

third degree AV block

AV block is caracterized by___ intervals.

regular P to P interval and regular R to R

Second-degree AV block type II is caracterized by__ intervals

irregular P to P

second degree AV block type I is caracterized by ___ intervals

regular P to P and irregular R to R

In second-degree and third-degree AV blocks ____

P waves ocur regularly

in third-degree AV block ___

there is no PR interval because the atria and ventricle beat independently of each other

Most of the bundle branch tissue is supplied by the ____ coronary artery

left

the QRS complex associated with a third-degree AV block is always wide.

false

tall, peaked T waves observed on the ECG are most commonly see in patients with ___

hyperkalemia

the anterior surface of the heart consist of the ____

right ventricle

Which of the following leads are chest leads?

V1 V2 V3 V4 V5 V6

how are frequent PACS usually managed?

correcting underline cause

Myocardial ischemia delays the process of repolarization; therefore, the ECG changes characteristic of ischemia include____

change in the ST segment and T wave

Lead III views the___ wall of left ventricle

inferior

the term accute coronary syndromes refers to patient presenting with ischemic chest pain

true

In the limb leads, the ST segment is normally isoelectric.

true

A Q wave, if present, is always a negative waveform.

true

The point where the QRS complex and ST segment meet is called the ST junction or the J point.

true

Lead I is perpendicular to lead ____

aVF

lead I views the___

lateral wall of the left ventricle

Which of the following leads are anatomically contiguous?

V2 V3 V4

the myocardium is thickest in the___

left ventricle

The first segment of the left coronary artery is the _ artery.

left main coronary

The term ectopic refers to an extra muscle bundle consisting of working myocardial tissue that forms a connection between the atria and ventricles outside the normal conduction system.

false

The six limb leads view the heart in the frontal plane as if the body were flat.

true

Individuals with preexcitation syndrome are predisposed to tachyayshythmias.Individuals with preexcitation syndrome are predisposed to tachyayshythmias.

true

The electrocardiogram (ECG) is a reflection of the heart's mechanical activity.

false

Cardiac output is the amount of blood pumped into the aorta each minute by the heart.

true

delay or block that occurs in one of the bundle branches affects ventricular depolarization.

true

Leads V4R, V5R, and V6R are used to view the posterior wall of the left ventricle.

false

In most ECG leads, a normal Q wave is less than 0.04 second in duration and less than one third of the ampute of the R wave in that lead.

true

Depolorazation is the same as contraction

false

A macro reentrant circuit is one that involves a small area of heart tissue, usually a few centimeters or less.

false

EKG TEST 1

Karla A Cedano · 42問 · 1年前

EKG TEST 1

42問 • 1年前

Karla A Cedano

PHELOBOTOMY 1

Karla A Cedano · 46問 · 1年前

PHELOBOTOMY 1

46問 • 1年前

Karla A Cedano

PHLEBOTOMY 2

Karla A Cedano · 33問 · 1年前

PHLEBOTOMY 2

33問 • 1年前

Karla A Cedano

問題一覧

In pacing, sensitivity refers to ___

ability of a pacemaker to recognize and respond to instructions electrical activity

The first letter of the pacemaker identification code represents___

the chamber paced

Capture is___

ability of pacing stimulus to successfully depolarize the cardiac chamber that is being paced

The second letter of the pacemaker identification code represents____

the chamber sensed

where should the positive electrode for lead V5 be positioned?

left anterior axilary line at the same line as V4

Lead V1 views the__

septum

Lead aVL views the___

lateral wall of left ventricle

Anterior or lateral wall myocardial infarctions are most often a result of an occlusion of the ____coronary artery.

lateral

Lead V5 views the ____ wall of the left ventricle

lateral

The inferior wall of the left ventricle is supplied by the _____coronary artery in most of the population.

right

Where should the positive electrode for lead V1 be positioned?

right side of the sternum, fourth intercostal space

Which leads face the septum?

V1, V2

Lead II views the ___ wall of the left ventricle

inferior

Hyperthory refers to a(n)_____

increase in the tickness of a heart chamber because of chronic pressure overload

What is meant by the term pulseless electrical activity (PEA)?

an organized rhythm on the cardiac monitor although a pulse is not present

Transcutaneous pacing is the treatment of choice for pulseless ventricular tachycardia or ventricular fibrillation.

false

third degree AV block

AV block is caracterized by___ intervals.

regular P to P interval and regular R to R

Second-degree AV block type II is caracterized by__ intervals

irregular P to P

second degree AV block type I is caracterized by ___ intervals

regular P to P and irregular R to R

In second-degree and third-degree AV blocks ____

P waves ocur regularly

in third-degree AV block ___

there is no PR interval because the atria and ventricle beat independently of each other

Most of the bundle branch tissue is supplied by the ____ coronary artery

left

the QRS complex associated with a third-degree AV block is always wide.

false

tall, peaked T waves observed on the ECG are most commonly see in patients with ___

hyperkalemia

the anterior surface of the heart consist of the ____

right ventricle

Which of the following leads are chest leads?

V1 V2 V3 V4 V5 V6

how are frequent PACS usually managed?

correcting underline cause

Myocardial ischemia delays the process of repolarization; therefore, the ECG changes characteristic of ischemia include____

change in the ST segment and T wave

Lead III views the___ wall of left ventricle

inferior

the term accute coronary syndromes refers to patient presenting with ischemic chest pain

true

In the limb leads, the ST segment is normally isoelectric.

true

A Q wave, if present, is always a negative waveform.

true

The point where the QRS complex and ST segment meet is called the ST junction or the J point.

true

Lead I is perpendicular to lead ____

aVF

lead I views the___

lateral wall of the left ventricle

Which of the following leads are anatomically contiguous?

V2 V3 V4

the myocardium is thickest in the___

left ventricle

The first segment of the left coronary artery is the _ artery.

left main coronary

The term ectopic refers to an extra muscle bundle consisting of working myocardial tissue that forms a connection between the atria and ventricles outside the normal conduction system.

false

The six limb leads view the heart in the frontal plane as if the body were flat.

true

Individuals with preexcitation syndrome are predisposed to tachyayshythmias.Individuals with preexcitation syndrome are predisposed to tachyayshythmias.

true

The electrocardiogram (ECG) is a reflection of the heart's mechanical activity.

false

Cardiac output is the amount of blood pumped into the aorta each minute by the heart.

true

delay or block that occurs in one of the bundle branches affects ventricular depolarization.

true

Leads V4R, V5R, and V6R are used to view the posterior wall of the left ventricle.

false

In most ECG leads, a normal Q wave is less than 0.04 second in duration and less than one third of the ampute of the R wave in that lead.

true

Depolorazation is the same as contraction

false

A macro reentrant circuit is one that involves a small area of heart tissue, usually a few centimeters or less.

false