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EKG Unit 2 Vocabulary
Terms in this set (60)
An object made by human beings; often refers to a primitive tool or other relic from an earlier period
absence of contractions of the heart
a cardiac arrhythmia characterized by chaotic, rapid electrical impulses in the atria. The atria quiver instead of contracting, causing irregular ventricular response and the ejection of a reduced amount of blood. The blood that remains in the atria becomes static, increasing the risk of clot formation, which may lead to a stroke.
irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block"
Rate: 150-250 beats per minute
P-waves: may be upright or inverted will appear different from underlying rhythm
PR interval- may be normal, shortened, or prolonged
Leads created by combing two of the three limb leads to create a positive electrode; the third creates the negative electrode
aortic valve replacement
Augmented Left Arm Lead. Lead aVL records electrical activity from the midpoint between the right arm and left leg to the left arm.
Augmented Foot Lead. Lead aVF records electrical activity form the midpoint between the right arm and left arm to the left leg.
An individual's normal state of being
type of ECG lead that measures the flow of electrical current in two directions at the same time; consists of leads I, II, and III
slow heart rate
A complete heartbeat consisting of contraction and relaxation of both atria and both ventricles
The process during the action potential when sodium is rushing into the cell causing the interior to become more positive.
Relaxation of the heart
beats that arise from a pacemaker other than the sinus node.
extra heartbeats that are out of the normal rhythm.
record of the electrical activity of the heart
instrument used to record the electrical activity of the heart
A metal strip that conducts electricity
multi-purpose, highly-conductive, water soluble gel that supports the conduction of electrical impulse.
A voltage change observed after electrical stimulation is applied to the skin surface above the distal region of a nerve; often used to measure nerve conduction velocity.
P waves happen very quickly
a device that uses an electromagnet to measure electric current
low blood pressure
the use of multiple modes of transportation
The distance between two notes
middle of the armpit
Middle of the clavicle
abnormal heart sound
A standard that can be achieved under practical operating conditions
premature atrial contraction
A device that delivers electrical impulses to the heart to regulate the heartbeat
Division into two opposite positions
The sinoatrial node (SA) is the pacemaker of the heart and produces the P wave.
paroxysmal supraventricular tachycardia
premature ventricular contraction
The first positive deflection produced by ventricular depolarization.
Return of the cell to resting state, caused by reentry of potassium into the cell while sodium exits the cell.
one complete cardiac cycle
portions of a magazine's readership that an advertiser wants to reach
Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
normal sinus rhythm
normal heart rhythm
instrument to measure blood pressure
The first three leads; they use two limb electrodes to record the heart's electrical activity
defining meaningful scores by comparison with the performance of a pretested group
fast heart rate
a type of ECG lead that measures the flow of electrical current in one direction only
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