EKG Flashcards
(10 cards)
The QRS rate is 30. There appears to be one P-wave per QRS. The QRS appears normal. What does this describe?
Sinus bradycardia
There are two P waves for every 1 QRS complex. The PR interval is always the same. The QRS appears normal and the rate is 50. What does this describe?
Mobitz II second degree heart block
The QRS rate is 80 and there is one P-wave per each QRS. The PR interval is 0.24. QRS complex appears normal. What does this describe?
First degree heart block: one P per QRS most of the time with ever widening PR interval describes Mobitz one block
There is one P wave for every QRS except one. All the QRS complexes appear normal except for one noted. The rate is 80. The PR intervals are all normal. the one QRS with no P-wave is wide and bizarre in appearance and the T-wave is opposite the major deflection. What does this describe?
Normal sinus rhythm with a PVC(premature ventricular contractions- premature heartbeats originating from the ventricles of the heart)
The rhythm is a series of wide but almost totally regular wide waves that you think are QRS complexes with no P waves that you can see. The rate is 150. What does this describe?
Ventricular tachycardia: ventricular tachycardia is usually a regular or nearly regular repetition of wide and bizarre appearing QRS complexes with no P-wave evident.
The rhythm strip shows one P-wave for every QRS most of the time but occasionally there is a P-wave with no QRS and the PR interval is longer each time. The QRS appears normal and the T-wave shows the major deflection. The rate is 86. What does this describe?
Mobitz one heart block: one P for QRS, QRS is normal and the T-wave follows the major deflection with the rate between 60 and 100 is normal sinus rhythm
The QRS complexes appear normal and the rate is 110. You cannot see any individual P waves but the isoelectric line appears with three sharp peaks before every one QRS complex which is regular in appearance. What does this describe?
Atrial flutter: sawtooth appearing isoelectric line with regular QRS complexes and no individual P waves is the classic description for atrial flutter
The EKG strip shows no discernible PQRS complex, only a course and chaotic appearing wavy isoelectric line. which of the following does this describe?
Ventricular fibrillation: chaotic isoelectric line with no PQRS classically describes ventricular fibrillation
The rhythm strip shows a QRS rate of 126, there is no discernible P waves, only a chaotic appearing isoelectric line. The QRS rhythm is noted to be irregularly irregular. What does this classically represent?
Atrial fibrillation: A-fib is classically irregularly irregular with no P waves seen and the rate is usually over 100
The rate is 50 and the QRS appears normal. There is a negative P-wave with a PR interval of 0.08 and there’s one for each QRS. what does this describe?
Junctional rhythm: normal sinus rhythm fits all the criteria for a NSR and in this case the addition of a wide PR interval tells us this is normal sinus rhythm with a first degree block
