EKG Rhythm Strips: Slow rhythms 2
1.
3.
5.
6.
Answers
1.
3.
Sinus Arrest. The first thing that you notice about this EKG strip is the long pause between QRS complexes. During this period of arrest there is no cardiac output and no blood flow. Thus, the patient may experience a syncopal episode of have symptoms of dizziness or weakness. On this strip there are not enough complexes to say whether the underlying rhythm is regular or not. The rate looks to be about 50. There is one upright P wave for each QRS and the PR interval is < .20 sec. With this information in mind, the rhythm has the characterisitics of sinus bradycardia with sinus pause or sinus arrest.
5.
Atrial Flutter with Variable Ventricular Response. The rhythm is irregular. The atrial rate is about 250/min while the ventricular rate is between 44-65. There are 4-5 P waves for each QRS complex. This "sawtooth" appearance is characterisitic of atrial flutter. Since the rhythm is irregular with a variable ratio of P waves to QRS complexes the rhythm is said to have a variable ventricular response.
6.
2nd Degree Heart Block Type II. The rhythm is irregular. The rate is about 60. There are some extra P waves or nonconducted P waves. The PR interval on the conducted beats is the same. There is also a PVC present. At first appearance this rhythm looks like a type I block with a single nonconducted P wave. However, you will notice that the PR interval remains constant and does not increase over successive beats. When trying to distinguish between a type I block and a type II block always look at the PR interval on the conducted beats. If they are the same then you have a type II block. If the PR interval increases in length over successive beats then you have a type I block.
Reviewed on 2/28/16
2.
4.
5.
6.
Answers
1.
|
| Agnonal Rhythm |
Agnonal Rhythm. An agnonal rhythm is a very slow idioventricular rhythm with a rate less than 20. Like other ventricular rhythms it is characterized by a wide, bizzare looking QRS complex. This rhythm is often seen prior to asystole.
2.
|
| 2nd Degree Heart Block Type II |
2nd Degree Heart Block Type II. Both the atrial rhythm (P-P interval) and the ventricular rhythm (R-R interval) are regular. The atrial rate is 100 and the ventricular rate is 33. There is more than one P wave for each QRS complex. Some P waves are immediately followed by a QRS complex and others are not. The PR interval on the conducted beats is the same. Therefore, this rhythm meets the criteria for a 2nd Degree AV block type II rhythm.
|
| Sinus Bradycardia |
Sinus Bradycardia. The rhythm is regular. The rate is 46. There is one upright P wave before each QRS complex and the PR interval is < .20. Based upon this information, the rhythm is correctly identified as sinus bradycardia.
4.
|
| Sinus Arrest |
5.
|
| Atrial Flutter with a Variable Ventricular Response |
Atrial Flutter with Variable Ventricular Response. The rhythm is irregular. The atrial rate is about 250/min while the ventricular rate is between 44-65. There are 4-5 P waves for each QRS complex. This "sawtooth" appearance is characterisitic of atrial flutter. Since the rhythm is irregular with a variable ratio of P waves to QRS complexes the rhythm is said to have a variable ventricular response.
6.
|
| 2nd Degree Heart Block Type II |
2nd Degree Heart Block Type II. The rhythm is irregular. The rate is about 60. There are some extra P waves or nonconducted P waves. The PR interval on the conducted beats is the same. There is also a PVC present. At first appearance this rhythm looks like a type I block with a single nonconducted P wave. However, you will notice that the PR interval remains constant and does not increase over successive beats. When trying to distinguish between a type I block and a type II block always look at the PR interval on the conducted beats. If they are the same then you have a type II block. If the PR interval increases in length over successive beats then you have a type I block.
Reviewed on 2/28/16
Comments
Post a Comment