Question

fill in the 7 blanks on the image for each of the 5 ekg rhythms

Regularity Heart rate QRS complexes P waves PR interval Interpretation QRS interval

Answer 1

1. SUPRAVENTRICULAR TACHYCARDIA

QRS COMPLEXES: USUALLY NARROW REGULARITY: REGULAR HEART RATE: 150 -250 P WAVES: POINTED OR HIDDEN IN T PR INTERVAL: IMMEASURABLE QRS INTERVAL: <0.12 INTERPRETATION: CHF, HYPOXIA, MITRAL VALVE DISEASE.

2. SECOND DEGREE HEART BLOCK (MOBITZ 1)

QRS COMPLEXES: WIDE REGULARITY: IRREGULAR HEART RATE: VARIES ( PROGRESSIVELY PROLONGED) P WAVES:NORMAL PR INTERVAL: PROGRESSIVELY PROLONGED QRS INTERVAL: < 0.12 INTERPRETATION: ACUTE INFERIOR MI

3. ATRIAL FLUTTER WITH VARIABLE AV CONDUCTION

QRS COMPLEXES: NORMAL REGULARITY: REGULAR OR IRREGULAR HEART RATE: ATRIAL RATE ( 250-400) P WAVES: SAW TOOTH PR INTERVAL: NONE QRS INTERVAL: <0.12 INTERPRETATION: VALVULAR DISEASE, MI, CHF, PERICARDITIS.

4. SINUS BRADYCARDIA

QRS COMPLEXES: NORMAL REGULARITY: REGULAR HEART RATE: 60 P WAVES: NORMAL PR INTERVAL: 0.12-0.20 QRS INTERVAL: <0.12 INTERPRETATION: INACTIVITY, RESPIRATORY ARREST

5. ATRIAL FIBRILLATION

QRS COMPLEXES: NORMAL REGULARITY: IRREGULAR HEART RATE: ATRIAL RATE > 400 P WAVES: WAVY ( UNIDENTIFIABLE) PR INTERVAL: NONE QRS INTERVAL: < 0.12 INTERPRETATION: HEART DISEASE, EMOTIONAL STRESS.