test 1 Flashcards
Difference between EKG and ECG
No Difference
Which of the following is not an element of the electrical pathway
Electrodes
The no electrical activity represents
Isoelectric Line
The intrinsic electricity refers to
The electricity produced by the heart on its own
What are the 5 steps to consider when analysing rhythm
How fast or slow rhythm regular or irregular is there a p before every QRS what is the PR interval What is the duration of the QRS complex
which leads look at the adjoining tissue in the anterior region of the left ventricle
V2,V3,V4
The electric impulse conductive way of the heart is
SA Node-AV Node-Bundle of his-Punjunki Fibers
The inferior wall of the left ventricle is supplied by the ___coronary artery in most of the population
Right
To determine whether the ventricular rhythm on the EKG tracing regular or irregular, compare___ intervals
R TO R
When the left ventricle contracts, freshly oxygenated blood flows through the ___ into the ____
Aortic, Aorta
In a Junctional Rhythm viewed in lead II where the location of the P wave on the EKG if atrial depolarization precedes ventricular depolarization
Before the QRS complex
The ground electrode is found in
The right leg
DIrection blood flows through the heart
RIght Atrium-Right Ventricle-Pulmonary Artery-Lungs-Pulmonary Veins-Left Atrium-Left Ventricle
On the EKG, the P wave represents atrial___ and the QRS complex represents ventricular___
Depolarization, Depolarization
The precordial leads are
V1,V2,V3,V4,V5,V6
Which side of the heart is a low pressure system that pumps blood to the lungs
Right
The heart is divided into __ chambers but function as a__ sided pump
4,2
The middle layer of the heart is called
myocardium
Inside layers of the heart to the outside are
endocardial-myocardial-epicardial
___ cells are working cells of the heart that contain contractble filaments are form the muscular layers of the artrial walls and thicker muscular layers of the ventricular walls
Myocardial
which of the following is the first positive deflection seen on the EKG after the P wave
R wave
On an EKG, what is the first negative deflection seen after the P wave
Q wave
Which is th element of an EKG
P Wave
On the EKG, the time necessary for the spread of an electrical impulse through the av node, bundle of his, right and left bundle branches, and the punkinje fibers is reflected by the
Pr Segment
The portion of the EKG tracing between the QRS complex and the T wave is called the
ST segment
The QT interval is measured from the beginning of the
QRS complex to the end of the t wave
How do you determine whether the atrial rhythm on an ekg trach is regular or irregular
compare p to p intervals
The R To R interval is the distance between
The R wave and the successive beats
The Q wave is
The first deflection to the bottom before R
Blood flows from the R atrium through the__ valve into the R ventricle, also seprates the Right Atrium from RIght Ventricle
Triscuspid
The left atrium recieves blood from the__
Pulmonary Veins
THe heart is constitued
2 atria and 2 ventricles
Blood vessel that comes out of the left ventricle
The aorta
The apex of the heart is formed by the ____
Tip of the left ventricle
The absolute refractory period begins with the onset of the __ and tertminates___
QRS complex, at approximatey the apex of the apex of the T
Rapid Ejection of blood from the ventricular chambers of the heart occurs because___ and ___ valves open
pulmonic, aortic
The monopolar leads are
V1,V2,V3,V4,V5,V6,AVR,AVL,AVF
lead II records the difference in electrical rojtenial between __ leg__ arm
left, right
Leads,II,III, AVF view the__ surface of the left ventricle
inferior
leads v3 views the__ wall of the left ventricle
anterior
lead v1 view the
septum
which leads look at adjoining tissues in the inferior regions of the left ventricle
II,III, AVF
seminlinar valve are
aortic+Pulmonic
The PR interval is considered prolonged if it is more than___ seconds a duration
0.20
Each large box on ECG represents__ second
0.20
The normal value of the PR interval is
from 0.12 to 0.20 sec
in an adult the normal duration of the qrs complex is
0.10 secondsd or less
the intrinsic rate of the ventricle__ beats/min
20-40
an ECG machine sensitivity must be callibrated so that 1mv electrical signal will produce a deflection measuring exactly__ mm tall
10
each small box on the ECG paper represents
0.04
The rate of sinus tacycardia is___ beats/mins
faster than 100
The rate of a sinus bradycardia___ beats/min
slower than 60
the rate of a sinus rhythem is___ beats/min
60-100
The intrinsic rate of the atriovenicular AVI bundle is__ beats, min
40-60
The normal pacemaker on the is the __ node, which is found in the___ atrium, and has an intrinsic rate__beats, min
sinotrial, right, 60-100
The T wave represent
ventricular repoliarzation
the cardiac cell is relaxed, the state is known as
repolarization
where is the positive electrode placed in lead III
left leg or foot
the normal value of p wave is
less than 0.11 sec
The intrinsic rate of the purkinje fiber is__ beats, min
20-40
The LL electrode is placed
left leg
when the cardiac muscle cell is stimulated, the cell is said is
depolarize
The heart pacemaker is?
SA node
The PR segment wave represents
Delay at av node
The RA electrode is placed
Right Arm
The DIII lead is found in
left arm negative left positive positive foot
in the hearts conduction system the ___ revieves a electrical impulse from the right and left bundle branches and relay to the venticular myocardium
punjunkie fibers
high pressure side of heart is
left
The SA node is located in
The Right Atrium
where should the positive electrode for lead VI be posistioned.
Right side of the sternum, fourth intercosal space
which if the following leads should be used to view the right ventricle
v4r
leads I, AVI, V5 and V6 views the __ surface of the left ventricle
lateral
Tall peaked t waves deserved on the ECG observed on the ECG are most commonly seen i patients with
hyperkdemia
the DI leads is found in
Right arm negative, left arm positive
where is the postive electrode placed in lead I
left arm
the v4 electrode is placed
the 5 left intercostal space with medic clavicle line
the DII lead is found in
Right arm negative, left foot position foot
the v3 elctrode is palced in
between v2 and v4
the v2 electrode is placed in
4th L intercostal space next to the sternum
The V1 electrode is placed
4th intercosatal space next to the sternum
the v5th electrode is placed
5th left intercostal space with anterior axillar line
the v6th electrode is placed in
5th left intercostal space with the media axillar line
in sinus arrthymia a gradual in creasing of the heart rate is usually assocated with
ispiration
the valve that seperates the left atria from the left ventricle is
mitrial or biscuspid
R atrium recieves blood from
vena cava
the bipolar leads are
DI DII DIII
the axes of leads I, II, III form an equlateral traingle with the heart at the center enthoves traingle if the augmenteed limb leads are added to this configurration and the axes of the 6th leads moved in which they bisect each other the result is
hexaxial refrerence system
distalic___ systolic
distalic is bottom systolic is top
what is not normal in an infant patient
heart rate less than 100
An increase in duration on an EKG wave represents
prolonged depolarization in a hypertrophic heart chamber
what best describes action potential
spontaneous depolarization results in a wave of new action potentials
if both the sinoatrial node and av node fail to generate an impulse, the ventricles will take over as the pacemaker of the heart. How is this reflected on the EKG strip
There is no P Wave
the following is not included in allowing patient record release
The patient is behind in medical bills
what treatment is not recommended for atrial flutter
Defibrillation
which of the following leads do not contain a positive role
Right leg
which of the following is the minimum number elecrodes that may be attached to a patient for a holter monitoring
5
when preparing a patient for an ekg is the supine position, where should tech stand to apply the electrodes
patients left side
which of the following sinus rhythm has a heart rate of more than 100/min
sinus tachycardia
in which of the following rhythms is the PR interval absent
ventricular tachycardia
a technican must document which of the following information in a patients electronic medical record regarding an ekg procedure
Date and time of the EKG
An EKG technician is preparing a patient for an EKG and notices that the patient is grabbing their chest and reporting chest pain. Which of the following conditions should the technician suspect
Tachycardia
A technician is monitoring a patient who is experiencing angina during a treadmill stress test. Which of the following actions should the technician make
Reduce the speed of the treadmill
which of the following findings is a contraindication to a patient undergoing a stress test
congestive heart failure
A technician is preparing to put the EKG machine away at the end of the day. Which of the following action should the technician take
Wipe the machine down with an nonabrasive cleaner
Atechnican is preparing to perform an EKG on a patient who has bilateral leg amputation the technician should adjust which of the following leads for this patient
lower extremity leads
During an exercise stress test, a technician should observe the patient for which of the following?
fatigue
which of the following tracing would indicate atrial flutter
the f waves have a saw toothed appearance
The septal wall of the heart is viewed by which of the following leads
V1 and V2
A technician is monitoring a patient who is undergoing a stress test. The technician should collect which of the following from the patient
oxygen saturation
while an EKG technician is preparing a patient for exercise stress testing, the patient complains of mild chest tightness. which of the following steps should the technician take first
obtain vital from the patient
which of the following is a contraindication to performing an exercise stress test
the patient is having a myocardial infarction
which of the following locations should apply sphygmomanometer
Right brachial
