ECG Case #25 - Question #2 Answer

 

Sinus Tachycardia:

1. Exercise

2. Anemia

3. Dehydration or shock

4. Fever/sepsis/infection

5. Hypoxia

6. Chronic pulmonary disease

7. Hyperthyroidism

8. Pheochromocytoma

9. Medications/stimulants

10. Decompensated congestive heart failure

11. Pulmonary embolus

Low voltage:

1. Obesity

2. COPD

3. Pericardial effusion

4. Severe hypothyroidism

5. Subcutaneous emphysema

6. Massive myocardial damage/infarction

7. Infiltrative/restrictive diseases such as amyloid cardiomyopathy

Right bundle branch block:

1. Normal variant

2. Sudden increase in right ventricular pressure (pulmonary embolus)

3. Right ventricular failure

4. Obstructive sleep apnea

5. Myocardial ischemia or infarction (uncommon)

6. Mechanical manipulation (Swan-Ganz catheter)

PROCEED TO ECG CASE #26