12-Lead EKG - EMS1

According to the American Heart Association, a medical professional should complete a 12 lead EKG and transmit that 12 lead EKG to the appropriate location within ______ minutes on all chest pain patients. a.) 5 minutes b.) 10 minutes c.) 12 minutes d.) 15 minutes

10 minutes

The normal firing rate of the ventricles is between: a.) 20-40 b.) 40-60 c.) 60-80 d.) 60-100

20-40

All chest pain patients _____ years of age and older should receive a 12 lead EKG. a.) 35 b.) 40 c.) 45 d.) 50

35

Q waves are considered to be pathological if they are greater than ____ in length. a.) 10 ms b.) 20 ms c.) 30 ms d.) 40 ms

40 ms

The normal firing rate of the AV node is between: a.) 30-60 b.) 40-60 c.) 60-80 d.) 60-100

40-60

There is a certain type of electrical artifact that can sometimes be seen on a 12 lead EKG. It is called: a.) 39 cycle interference b.) Electrical disruption c.) Electrical fibrillation d.) 60 cycle interference

60 cycle interference

Determine if the ST segment is elevated and if so, how many boxes? V2 Strip a.) 5 b.) 6 c.) 7 d.) 8

8

Determine if the ST segment is elevated and if so, how many boxes? V4 (shark out of water) Strip a.) 7 b.) 8 c.) 9 d.) 10

9

Determine if the ST segment is elevated and if so, how many boxes? V4 Strip a.) 7 b.) 8 c.) 9 d.) 10

9

Patients with a STEMI should get to a catheterization lab within _____ minutes of medical contact. a.) 60 minutes b.) 90 minutes c.) 120 minutes d.) 150 minutes

90 minutes

Do you see ST elevation and if so, what area of the heart is indicated? (Wide Complex) x3 a.) Lateral b.) Inferior c.) Septal d.) Anterior

Anterior

Interpret 12 lead EKG in Image #5. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Anterior wall infarction

Interpret 12 lead EKG in Image #6. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Anterior wall infarction

If you do not have a P wave in the EKG you are looking at, the heart is missing: a.) Atrial depolarization b.) Atrial repolarization c.) Ventricular depolarization d.) Ventricular repolarization

Atrial depolarization

All of the following can cause ST segment changes except: a.) Cardiac stenosis b.) Myocardial infarction c.) Electrolyte imbalance d.) Pulmonary embolism

Cardiac stenosis

This term describes that pattern of the electrical charge in the heart that produces the EKG. a.) Depolarization b.) Repolarization c.) Electrical wave d.) The QRS complex

Depolarization

Is the ST segment: (6 second Strip with arrows) a.) Depressed b.) Elevated c.) Flat d.) Undetermined

Depressed

Is the ST segment: (12 Lead) x2 a.) Depressed b.) Elevated c.) Flat d.) Undetermined

Elevated

Is the ST segment: (Single QRS Segment) a.) Depressed b.) Elevated c.) Flat d.) Undetermined

Elevated

Is the ST segment: (12 Lead) a.) Depressed b.) Elevated c.) Flat d.) Undetermined

Flat

Determine if the ST segment is elevated and if so, how many boxes? a.) 1 b.) 2 c.) 3 d.) More than 3

More than 3

What kind of charge does a cardiac cell have in its resting state? a.) Depolarized b.) Repolarized c.) Positive d.) Negative

Negative

What measures the total time of the ventricular contraction? a.) The P to T interval b.) The Q to S interval c.) The Q to T interval d.) The R to T interval

The Q to T interval

The QRS represents when an electrical charge is passing through: a.) The atria b.) The SA node c.) The AV node d.) The bundle branches

The bundle branches

In the basic EKG, the P wave represents? Select all that apply a.) The depolarization of the left atria b.) The repolarization of the left atria c.) The depolarization of the right atria d.) The repolarization of the right atria

The depolarization of the left atria AND The depolarization of the right atria

As blood is pumped out of the right ventricle, where does it go next? a.) To the left atria b.) To the left Ventricle to be pumped to the body c.) To the lungs for oxygenation d.) Through the right coronary artery

To the lungs for oxygenation

What can you do to get a better EKG tracing on a patient? a.) Press the electrodes on with direct pressure b.) Ask the patient not to talk during the procedure c.) Use a wipe or dry cloth to remove any excess oils d.) Clean each electrode site with alcohol to assure adherence

Use a wipe or dry cloth to remove any excess oils

The ST segment is what leads up to: a.) Ventricular repolarization b.) Atrial repolarization c.) Ventricular depolarization d.) Atrial depolarization

Ventricular repolarization

The T wave indicates: a.) Atrial depolarization b.) Atrial repolarization c.) Ventricular depolarization d.) Ventricular repolarization

Ventricular repolarization

Once a 12 lead EKG has been obtained, how long should the healthcare provider take before transmitting the 12 lead EKG to the receiving hospital so that activation of the cath lab can occur? a.) Within 15 minutes b.) Within 10 minutes c.) Within 5 minutes d.) There is not a time limit on this activity

Within 10 minutes

The three augmented limb leads are leads: a.) I, II, and III b.) V1, V2, and V3 c.) V4, V5, and V6 d.) aVR, aVL, and aVF

aVR, aVL, and aVF

The first positive deflection in the EKG is the: a.) Q wave b.) R wave c.) S wave d.) T wave

R wave

The white lead is physically attached in which position? a.) Right arm b.) Left arm c.) Right leg d.) Left leg

Right arm

Do you see ST elevation and if so, what area of the heart is indicated? a.) Lateral b.) Inferior c.) Septal d.) Anterior

Septal

Do you see ST elevation and if so, what area of the heart is indicated? (ST Elevation in V2 & V3, but NOT in aVF) a.) Lateral b.) Inferior c.) Septal d.) Anterior

Septal

Interpret 12 lead EKG in Image #7. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Septal wall infarction

Interpret 12 lead EKG in Image #8. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Septal wall infarction

Each small box on an EKG printout represents: a.) 0.02 seconds each b.) 0.04 seconds each c.) 0.06 seconds each d.) 0.08 seconds each

0.04 seconds each

A normal QRS interval should be between: a.) 0.06 - 0.10 seconds b.) 0.08 - 0.10 seconds c.) 0.08 - 0.12 seconds d.) 0.10 - 0.12 seconds

0.08 - 0.12 seconds

A normal QRS should measure in length between: a.) 0.04-0.12 seconds b.) 0.06-0.12 seconds c.) 0.08-0.12 seconds d.) 0.10-0.12 seconds

0.08-0.12 seconds

The normal PR interval should be: a.) 0.10-0.20 b.) 0.12-0.20 c.) 0.12-0.22 d.) 0.20-0.30

0.12-0.20

Do you see ST elevation and if so, what area of the heart is indicated? (Flat) a.) Lateral b.) Inferior c.) Septal d.) Anterior

Inferior

Do you see ST elevation and if so, what area of the heart is indicated? (ST Elevation) x2 a.) Lateral b.) Inferior c.) Septal d.) Anterior

Inferior

Elevation of the ST segment in leads II, III, and aVF indicate damage where in the heart? a.) Anterior b.) Lateral c.) Inferior d.) Septal

Inferior

Interpret 12 lead EKG in Image #3. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Inferior wall infarction

Interpret 12 lead EKG in Image #4. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Inferior wall infarction

The heart rate pattern of atrial fibrillation is considered to be: a.) Normal b.) Regular c.) Regularly irregular d.) Irregularly Irregular

Irregularly Irregular

Any rhythm that is produced below the sinus node is referred to as a: a.) Sub sinus rhythm b.) Junctional rhythm c.) Ventricular rhythm d.) Intrinsic rhythm

Junctional rhythm

Do you see ST elevation and if so, what area of the heart is indicated? (ST Depression) x2 a.) Lateral b.) Inferior c.) Septal d.) Anterior

Lateral

Interpret 12 lead EKG in Image #1. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Lateral wall infarction

Interpret 12 lead EKG in Image #2. a.) Lateral wall infarction b.) Inferior wall infarction c.) Anterior wall infarction d.) Septal wall infarction

Lateral wall infarction

What is the primary problem with taking a 12 lead EKG that leads to a poor tracing? a.) Vehicle movement b.) Poor skin prep c.) Body hair d.) Patient movement

Patient movement

What is the primary reason for not getting a clear tracing on a 12 lead EKG? a.) Cable movement b.) Patient movement c.) 60 cycle interference d.) Vehicle movement

Patient movement