Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


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.
Don't know
remaining cards
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:
restart all cards
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

Basic Arrhythmia

Waves & Measurment - Chpt.2

Electrical patterns of the heart can be detected from the surface of the skin by Attaching an electrode and connecting it to an electrocardiograph
An abnormal heart rhythm is called an Arrhythmia or Dysrhythmia
Electrocardiography The study of arrhythmia or dysrhythmia
EKG (ECG) refers to an Electrocardiograph (EKG) machine or record
Electrocardiograph will display electrical patterns of the heart on a monitor or graph paper
Electrical activity is displayed best if you can assure good contact between the skin and electrode
Good contact between the skin and electrode can be achieved by 1.Abrading the skin w/alcohol pad 2.Removing obstacles (dirt/hair)
Morphology The study of shapes
The writing point on an EKG is an Atylus
When the EKG is turned on (but not yet connected to the patient) it will produce a straight line called an isoelectric line
An upright wave on an EKG is called A positive
A downward wave onan EKG is called A negative
Electricity flowing toward 'POSITIVE' electrode produce an 'UPRIGHT' pattern
Electricity flowing toward 'NEGATIVE' electrode produce an 'INVERTED' pattern
Different electrical views of the heart can be seen by 1.Rearranging the electrode 2.Diverting the direction of the electrical impulse by turning a knob on the electrocardiograph
Each electrical view is called a Lead
The most common lead used for cardiac monitoring is Lead II
Vertical lines | on the EKC/ECG graph paper represent Time
Horizontal lines __ on the EKG/ECG graph paper represent Voltage / amplitude
Each small square on the EKG/ECG graph paper represents 0.04 sec
Each dark 'block' of squares on the EKG/ECG graph paper represent 0.20 sec = (0.04x5sq)
Every (3) three seconds on the EKG/ECG graph paper is represented by a TIC mark at the top of the graph paper
A cardiac cycle is made up of a PQRST
The first wave usually seen on a cardiac cycle is the P wave
P wave represents Atrial depolarization AKA Atrial discharge state
The second wave usually seen on a cardiac cycle is the QRS Complex
QRS complex represents Ventricular depolarization AKA Ventricular discharge state
A normal QRS complex is how long? 0.12 sec or less (less then 3 small squares)
The last wave usually seen on a cardiac cycle is the T wave
T wave represents Ventricular REpolarization AKA ventricular recovery time
The PRI (PR interval) begins where the P wave leaves the 'isoelectric line' and ends where the QRS complex begins
A normal PRI - PR interval) is how long? 0.12 - 0.20 seconds (3-5 small squares)
Electrical interference sometimes seen on the EKG display is called Artifact
Artifact can be caused by 1.Muscle tremors 2.Patient movement 3.Loose electrodes 4.60 cycle interference
60 cycle interference can be caused by Electrical interference from other electrical machinery such as cellular phones, electric shavers, radio, floor buffer, video games, i-pods, etc
Created by: adrouillard