Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

ADN 2 CH 27

ADN 2 CH 27 (GLOSSARY)

QuestionAnswer
ablation: purposeful destruction of heart muscle cells, usually in anattempt to control a dysrhythmia
antiarrhythmic medication: a medication that suppresses or pre-vents a dysrhythmia
automaticity: ability of the cardiac cells to initiate an electrical im-pulse
cardioversion: electrical current administered in synchrony with thepatient’s own QRS complex to stop a dysrhythmia
chronotropy: rate of impulse formation
conduction: transmission of electrical impulses from one cell to another
defibrillation: electrical current administered to stop a dysrhythmia,not synchronized with the patient’s QRS complex
depolarization: process by which cardiac muscle cells change froma more negatively charged to a more positively charged intracel-lular state
dromotropy: conduction velocity
dysrhythmia: disorder of the formation or conduction (or both) of the electrical impulse within the heart, altering the heart rate,heart rhythm, or both and potentially causing altered blood flow(also referred to as arrhythmia)
elective replacement indicator (ERI): a signal produced by a pacemaker when it is interrogated to indicate a near-depleted battery
implantable cardioverter defibrillator (ICD): a device implanted into the chest to treat dysrhythmias
inhibited: in reference to pacemakers, term used to describe the pacemaker withholding an impulse (not firing)
inotropy: force of myocardial contraction
P wave: the part of an electrocardiogram (ECG) that reflects conduction of an electrical impulse through the atrium; atrial depolarization
paroxysmal dysrhythmia: a dysrhythmia that has a sudden onset and/or termination and is usually of short duration
PP interval: the duration between the beginning of one P wave and the beginning of the next P wave; used to calculate atrial rate and rhythm
PR interval: the part of an ECG that reflects conduction of an electrical impulse from the sinoatrial (SA) node through the atrioventricular (AV) node
proarrhythmic: an agent (eg, a medication) that causes or exacerbates a dysrhythmia
QRS complex: the part of an ECG that reflects conduction of an electrical impulse through the ventricles; ventricular depolarization
QT interval: the part of an ECG that reflects the time from ventricular depolarization through repolarization
repolarization: process by which cardiac muscle cells return to a more negatively charged intracellular condition, their resting state
RR interval: the duration between the beginning of one QRS complex and the beginning of the next QRS complex; used to calculate ventricular rate and rhythm
sensitivity: the level that the intra cardiac electrical activity must exceed in order to be sensed by a pacemaker
sinus rhythm: electrical activity of the heart initiated by the sino-atrial (SA) node
ST segment: the part of an ECG that reflects the end of the QRS complex to the beginning of the T wave
supraventricular tachycardia (SVT): a rhythm that originates in the conduction system above the ventricles
T wave: the part of an ECG that reflects repolarization of the ventricles
TP interval: the part of an ECG that reflects the time between the end of the T wave and the beginning of the next P wave; used to identify the iso electric line
triggered: in reference to pacemakers, term used to describe the release of an impulse in response to some stimulus
U wave: the part of an ECG that may reflect Purkinje fiber repolarization; usually it is not seen unless a patient’s serum potassium level is low
ventricular tachycardia (VT): a rhythm that originates in the ventricles
Created by: xsavier1