Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Completed Study Guide > EKG Interpretation > Flashcards

EKG Interpretation Flashcards

1
Q

Describe Blood flow through the heart?

A

Blood enters the heart from the Body > Deoxygentated Blood enters the Right Atria of heart. The blood goes through the tricuspid valve into the right ventricle. The valve closes when the ventricle fills with blood. Blood is ejected and sent to lungs to receive oxygen via the pulmonary arteries through the pulmonic valve.Blood returns to the left atria of heart through the pulmonary veins (ONLY VEINS THAT CARRY OXYGENATED BLOOD) which carries the oxygenated blood back to the heart. The blood exits the right atria and goes into the left ventricle through the mitral valve. After the left ventricle fills with blood it sends the oxygenated blood back to the body via the Aortic Valve.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The ___ node send 60-100 impulses contracts both atria and sends impulses to ____ node which contracts both ventricles through the Bundle of His and along the Purkinje Fibers. This is electrical conduction through the heart.

A

SA

AV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

______ can be done resting, ambulatory, or while exercising.
Shows one picture of the heart at a specific point in time. Single View.
______ EKG shows twelve pictures of the heart in one point in time. 12 different Views.

A

EKG

12 Lead

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

EKGs are used to diagnose what 7 cardiac abnormalities?

A 
Conduction Abnormalities
Dysrythmias
Cardiac hypertrophy
Pericarditis
Myocardial Infarction (site and extent)
Pacemaker performance
Effectiveness of drug therapy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

BASELINE ON EKG SHOULD BE EQUIVALENT FROM THE LEFT SIDE OF THE STRIP TO THE RIGHT.
Baseline ST ________ or ________ is an indicator of a serious abnormality such as an MI or Ischemia.

A

Elevation

Depression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

____ WAVE TO ____ WAVE ON THE EKG STRIP SHOWS THE ATRIA CONTRACTING.

____ WAVE TO ____ WAVE ON THE EKG STRIP SHOWS THE VENTRICLES CONTRACTING.

A

P to Q

Q to T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Measuring EKG Intervals:
__________ - Measured from the 1st positive deflection to 1st negative deflection. Starts at the beginning of the P wave until the beginning of the Q wave.

A

PR INTERVAL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Measuring EKG Intervals:
_________- Measure from the 1st negative defection to R Wave then the S is the next negative deflection. The S must return to the baseline for a normal EKG.

A

QRS INTERVAL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Measuring EKG Intervals:

________- The EKG strip returns to baseline.

A

ST INTERVAL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Measuring EKG Intervals:

________- NOT PRESENT on a NORMAL EKG. Only present in electrolyte abnormalities specifically potassium.

A

U WAVE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If the S wave does not return to baseline in the QRS Interval you must notify the doctor.
S depression occurs with _________.
S elevation is a sign of a _________.

A

myocardial ischemia

myocardial infarction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q 
EKG LEAD PLACEMENT: 
\_\_\_\_\_ under Rt clavicle 1st ICS. 
\_\_\_\_\_ under Lt Clavicle 1st ICS.
\_\_\_\_\_ on the far Lt of Umbilicus.
\_\_\_\_\_ on the far Rt side of the umbilicus.

_____ must be placed at the 4th ICS on the Rt Sternal Border

A

WHITE
REMEMBER: WHITE IS ON THE RIGHT.

BLACK
REMEMBER: BLACK IS OPPOSITE OF WHITE SO IT WILL GO ON THE OPPOSITE SIDE OF THE WHITE LEAD.

RED
REMEMBER: SMOKE OVER FIRE. RED OVER BLACK.

GREEN
REMEMBER: GREEN GRASS UNDERW WHITE CLOUDS.

YELLOW OR BROWN
REMEMBER: THIS IS THE ONLY ONE YOU HAVE TO COUNT.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

DO NOT PLACE THE EKG LEADS ON THE _____ THIS DOES NOT CONDUCT ELECTRICITY.

A

BONE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

WHAT IS THE LENGTH OF EACH EKG INTERVAL?
PR Interval: _______
QRS Interval: _______
QT Interval: _______

A
  1. 12 - 0.20 seconds
  2. 04 - 0.11 seconds
  3. 36 - 0.44 seconds
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q 
What is the conversion of boxes to seconds?
One small/mini box = \_\_\_\_
5 small boxes = \_\_\_\_\_
5 large boxes = \_\_\_\_\_
PQRSTU = \_\_\_\_\_\_
A
  1. 04 seconds
  2. 02 seconds

1 second

1 second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

REVIEW:
P WAVE : Firing of the ___ node causing Atrial depolarization. Electrical impulse across the atria.
PR: Atrial depolarization and a delay from the ___ node.
Ex. During a flutter of the atrial such as fibrillation or flutter the AV Node can slow the heart rate down a little bit.
QRS: Ventricular Depolarization. Hides repolarization of the Atria.
T Wave: Ventricular Repolarization. Ventricles relax.
U wave: May follow T wave.
QT Interval: QRS Complex to the T wave.

A

SA

AV

17
Q

__ wave is the 1st negative deflection.
__ wave is a positive deflection.
__ wave is a negative deflection.

A

Q
R
S

18
Q

Analyzing a Rhythm Strip:
_______: Measure from R to R to R. If they measure the same it’s a regular rhythm if they are not exactly the same distance this would be considered an abnormal rhythm.

A

Regular Rhythm

19
Q

How do you determine the Heart Rate With a 6 second strip?

A

6 seconds goes into a minute 10 times? You do not count the first BEAT and the Last BEAT to make it a six second EKG strip and you multiply the amount of R waves by 10 to get the heart rate.
Ex. 8 QRS Intervals in a six second strip. 8 x 10 = 80 bpm

20
Q

How do you determine the Heart Rate Without a 6 second strip?

A

Count the number of small boxes between an R2R interval. Divide that number by 1500.
Ex. 20 boxes % 1500 = HR 75

21
Q

How to correctly analyze a rhythm strip?
Do I have a P wave for every single QRS? Yes
Measure the PR interval? Is it within normal range?
Measure the QRS interval? Is it within normal range?
Measure the QT interval? Is it within normal range?
Identify the rhythm? It would only be one of what 5 rhythms?
What do you do after analyzing the EKG strip?

A

Normal Sinus Rhythm.
Normal Sinus Tachycardia.
Normal Sinus Bradycardia.
Atrial Fibrillation.

Document the rate and the rhythm and if it’s NSR sign it and put the strip in the chart.

22
Q

Heart rate between 60-100 BPM. Nurse would continue monitoring this patient.
What Sinus Rhythm Does this Indicate?

A

Normal Sinus Rhythm

23
Q

Heart rate less than 60 BPM. The beats are father apart on the EKG strip. In a healthy pt this would be normal. Nurse would go look at the patient and check BP and look for symptoms of decreased circulation and to see how they are tolerating the HR.
What Sinus Rhythm Does this Indicate?

A

Normal Sinus Bradycardia

24
Q

Heart rate greater than 100-160 BPM. The beats are closer together on the EKG strip. Nurse would check vitals, notify the Dr, because this rapid rate reduces ventricular filling which decreases cardiac output.
What Sinus Rhythm Does this Indicate?

A

Normal Sinus Tachycardia

25
Q

What does Normal Sinus Rhythm Mean?

.

A

Normal Sinus Rhythm only means that there is a P wave before every QRS complex

26
Q

Heart rate is greater than 350-600 BPM. The patient can have a slow ventricular rate or a rapid ventricular rate. Monitor their tolerance of the rate if it is a new diagnosis. Cannot see the P wave or T waves. Can see the QRS.
What Sinus Rhythm Does this Indicate?

A

Atrial Fibrillation

27
Q

Nurse cannot count the heart rate in a patient with _______ because it will be irregular. Go assess the apical for 1 whole minute. If it’s not a new diagnosis just monitor the patient. If it’s a new onset check vitals, and let the physician know. Monitor PT with INR.

A

Atrial Fibrillation

Completed Study Guide (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions