ekg study guide
electrical activity of the heart
The EKG records the:
The normal running speed of the EKG paper
A normal standardization mark should measure:
That extends below the baseline in the QRS complex following the R wave
The S wave is the first negative deflection
There are____ electrodes attached to the patient for Holter Monitoring
Left side, 5th intercostal space midclavicular line
Midpoint between V2 and V4
right side of sternum, 4th intercostal space
left side, 5th intercostal space, midaxillary
A normal PR interval should measure
40-60 per min.
The rate of the AV junction is
which limb sensor is the reference or ground electrode
PR interval of 0.24 seconds
not a normal sinus rhythm
Tension or pulling on electrode lead wire
The following leads to a Wandering Baseline on an EKG
The Q wave is always
Superior and Inferior Cava
Deoxygenated blood enter the right atrium via the
structural heart disease
A murmur is an abnormal sound that may
The term used to describe the amount of blood pumped by the heart per minute is called
90/60 or below
An example of Hypotension is
Which vessel has both oxygenated and deoxygenated blood?
The primary pacemaker of the heart
The protective sack that covers
The bicuspid valve is also known as
The ability of the cardiac pacemaker cells to spontaneously generate their own electrical impulses without external stimulation is known as
A pounding or racing of the heart, such as the patient is aware of his/her own heartbeat is called
electrodes are also known as
physicans do stress tests for
small squares horizonal on EKG are equal to
Vertical axis on EKG paper measures what
stylist mark the paper by what
normal sensitive setting 1mv is which measurement
Normal standardization mark measures
ensure check of the internal caliperation of the EKG
Electrodes on a holter monitor
Correct lead center of the heart to the positive pole of the left leg.
correct lead to right arm to left leg
correct lead right arm to left arm
center of heart to positive pole of the right arm
left arm to left leg.
proper placement for holter monitor
ventricular repolorization results in
PR intervals shorten
Takes place during respirations
Normal PR interval is
Normal sinus rhythm has all except
Irregular rythum can be caused by
what sinus rythem has a rate of 100 bmp or more
which limb sensor is a ground sensor
Patient name and ID
EKG Strip must include
count small boxes and divide into 1500 (between RR intervals)
One method to calculate heart rate
Patient falls asleep
Will not interfere with an EKG
Tension or pulling on a lead wire
will cause a wondering baseline
between R-R intervals on EKG 5 large squares =
first negative wave after the r
The S wave is chacaterised as?
the Q wave if present is always
The beginning of the p wave to the beginning of the ST segment
The PR interval is measured from?
sometimes there is no P wave
Which statement is true about P waves?
1st electrical impulse of a normal cardiac cycle
Several waveforms are called?
Movement away from the baseline
QRS complex is
a waveform in a segment are called
line between waveforms are called
What does the P wave represent?
delay at the AV Node
What does PR segment mean?
QRS complex represents?
a pause between ventricular depoarization and repolorization
ST segment is?
The T wave is?
What small wave after T wave
Who assigned letters to PQRS?
Source, means of transmission, host
Correct order of Chain of Infection
Go get a female tech.
A female complains that she wants a female to do her EKG, what do you do?
What test requires a informed consent form to be signed?
conidentiallity and privacy
another name for BP cuff?
Before blood enters Right atrium.
structural heart disease
A murmur indicates what?
Term used for pumping blood by the heart
left atrium and left ventrical
Narrowing of the valves
Blood flows from the heart to the lungs
Which vessels have deoxygenated and oxygenated blood
which artery supplies blood to the heart muscle
which layer of the heart is responsible for contraction and relaxation
Primary pacemaker of the heart
another name for myocardial infarction
Circulation desending aorta carrying oxigenated blood to the body.
electrical event that is expected to result in contraction.
Sac around heart
Thickest myocardium chamber
exchange of carbon dioxide and oxygen
Pulmonary semilunar valve
Blood leaves right ventrical.. where does it go?
downward and to the left
Apex of the heart points
12 lead EKG
patient heart rate is normal
one reason not to stop stress test