Waves, Intervals, and Complexes
Dysrhythmias
Leads, Axis, and Planes
Blocks and Wide Complexes
Ischemia, Injury, and Infarction
Miscellaneous coronaries, complications, and electrolytes
100
This wave represents atrial depolarization.
What is the P wave?
100
Irregularly irregular rhythm.
What is atrial fibrillation
100
RA +, F-
What is lead II?
100
QRS complex that is greater than or equal to 0.12 seconds
What is a bundle branch block?
100
Elevation above or depression below the J point is associated with myocardial ischemia.
What is the ST segment?
100
Associated with a coronary occlusion.
What is a Type 1 MI?
200
A negative wave before the R wave.
What is the Q wave?
200
Sawtooth waves seen best in lead II.
What is atrial flutter?
200
4th ICS, RSB
What is V1?
200
Precludes the diagnosis of anterior or posterior MI.
What is a left bundle branch block?
200
Measurements that make this wave "significant" or indicative of myocardial infarction.
What is a Q-wave that is 1 mm (1 block) wide or deep
200
Causes and decreased myocardial oxygen supply and an increased myocardial oxygen demand.
What is a tachycardia and elevated LVEDP or LVEDV
300
15 small blocks tall
What is 1.5 mV
300
Progressive prolongation of the PR interval until a beat is dropped.
What is second-degree AV block, Mobitz 1 or Wenckebach?
300
Used to monitor the inferior wall.
What are leads II, III, and AVF?
300
No 2 PR intervals are the same.
What is complete or third-degree heart block?
300
Best intraoperative lead combination to monitor for myocardial ischemia.
What are leads II and V4?
300
Bradycardia, hypotension, and sensitivity to vasodilators.
What are common complications of an inferior MI?
400
Prolongation of this interval can be associated with a life threatening dysrhythmia
What is the Q-T interval?
400
Rapid rhythm with more than 3 P-wave morphologies with varying PR/PP intervals.
What is multifocal atrial tachycardia?
400
Used to monitor the left anterior descending coronary.
What a V1-V5.
400
Causes secondary ST and T-wave changes in I, AVL, and V6
What is a LBBB?
400
Peaked or tented T-waves in V1-V5.
What are indications of anterior myocardial ischemia or hyperkalemia?
400
Makes the threshold potential more negative,
What is hypercalcemia?
500
Becomes taller in V1-V5
What is R-wave progession
500
Irregular wide-complex tachycardia with complexes that rotate from smaller to larger and back.
What is polymorphic V-tach or torsades de pointes?
500
Used to divide the frontal plane into 4 quadrants.
What are leads I and AVF?
500
Causes a deep slurred S-wave in V5 and V6.
What is a RBBB?
500
Q-waves and ST elevation in V1 and V2.
What are indications of a septal MI?
500
Associated with occlusion of the PDA.
What is a posterior MI?
600
The deepest wave in this lead added to the tallest wave in another lead defines LVH.
What is the S wave in V1or V2 nd the R wave in V5 or V6
600
More Ps than QRS with consistent PR intervals.
What is second degree heart block, Mobitz II?
600
Reciprocal changes used to monitor for posterior MI.
What are tall R waves in V1 and V2?
600
Rapid rate with short PR interval, wide QRS with initial slurring, and Q waves in II, III, AVF.
What is WPW or AVNRT
600
Q-waves and ST elevation in V1-V6, AVL and Lead I.
What is left main disease?
600
Associated with new onset LBBB.
What is LAD occlusion
700
What are Qr, QS, and RSR' complexes
700
Best treated with amiodarone or cardioversion
What is antidromic AVNRT or WPW
700
What is normal axis
700
Best treated with magnesium.
What is Torsades de Pointes?
700
An asymptomatic elevation in postoperative troponins following noncardiac surgery
What is MINS (myocardial injury after noncardiac surgery).
700
Associated with occlusion of an obtuse marginal branch.
What is a lateral MI or what causes Q waves in I, AVL, and V6?