Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

EKG 5&6

QuestionAnswer
What is evaluated and classified when determining dysrhythmias? Waves, segments, and intervals on the ECG tracing
QRS duration measurement is essential to determine the time it takes for: ventricular depolarization.
The QRS complex represents the time it takes for: the ventricles to depolarize.
Measuring the PR interval requires the ECG technician to measure from the: beginning of the P wave to the beginning of the QRS complex.
If you can't identify an R wave on the ECG tracing, which of the following wave(s) can you use to determine the regularity of the ventricles? Q and S wave junction
If a QRS complex measures 0.12 second or wider, it most likely indicates: delayed ventricular conduction.
The time from the beginning of atrial depolarization to the beginning of ventricular depolarization is shown on the ECG waveform as the: PR interval.
Depolarization of the cells causes the heart muscle to: Contract
The state in which the inside of each heart cell is negatively charged and the outside is positively charged is: polarization.
The rapid change in polarization that occurs when the electrical charge is reversed across the cell membrane so that the inside of each cell is positively charged is referred to as: action potential.
The state of cellular stimulation that precedes cardiac contraction is: depolarization.
The straight, horizontal line on an electrocardiogram that occurs when the tracing is at zero and no deflections are occurring is called the: isoelectric line.
An interval on an ECG tracing is: the period of time between two activities within the heart.
The QRS complex on an ECG tracing represents: ventricular depolarization and contraction.
On an ECG tracing, the period of time from the start of ventricular depolarization to the end of ventricular repolarization is the: QT interval.
The ST segment represents the time between ventricular depolarization and the beginning of ventricular repolarization.
A sudden loss of blood supply and oxygen to a region of heart tissue is known as: ischemia.
The first positive wave in a normal QRS complex is the R wave, which represents conduction of the electrical impulse: to the left ventricle.
Ventricular repolarization is represented on the ECG tracing by the: T wave
You are preparing to perform an ECG on a young woman when she tells you that she just had her blood tested and her blood potassium level is very low. What might you expect to see on the ECG tracing as a result of this? Heart rate would be slow
The J point is the junction of the QRS interval and the ST interval.
The U wave, which follows the T wave in an ECG tracing, represents: repolarization of the Purkinje fibers and the bundle of His.
The rapid change in polarization is known as ________blank. action potential
Repolarization of the cells causes the heart muscle to: going back to relaxing phase
The QRS complex represents: ventricular depolarization.
Which of the following is a sign of ischemia? ST segment depression.
The ECG tracing is considered a legal document and needs to be included in the patient's medical record. What four items must be on each ECG tracing? Patient's name, today's date and time, initials of the ECG technician
Sinus tachycardia may be a normal finding in people as a result of: exercise
What symptom do patients with sinus tachycardia often complain of? Palpitations
The condition in which stimulation of the vagus nerve causes changes in heart rate is known as vagal tone.
In sinus dysrhythmia, if the heart rate decreases to 40 to 50 beats per minute, the patient may complain of: palpitations, dizziness.
A condition in which the patient loses consciousness or faints is known as: syncope.
On the ECG tracing, what precedes and follows the sinus arrest period? Complete cardiac complexes
Signs and symptoms of adequate cardiac output include: an alert and oriented patient.
Which of the following is not characteristic of sinus tachycardia? The QRS duration is between 0.10 and 0.16 second.
Which of the following statements about sinus dysrhythmia is true? The intervals between the P-P and R-R waves vary.
In which rhythm does the SA node initiate an electrical impulse, but the impulse is not conducted to the atria? Sinus exit block
Sinus exit block and sinus arrest result in similar ECG tracings. The distinguishing factor is that in sinus exit block, the: pause duration is a multiple of the R-R or P-P interval.
Which of the following conditions may result in sinus exit block? Acute myocardial infarction
Created by: Lecia220
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards