         |
Sinus Tachycardia Sinus Tachycardia (Example 1) Sinus Tachycardia (Example 2) Sinus Tachycardia (Example 3) Sinus Tachycardia (Example 4) Sinus tachycarida is indicated on ECG with a normal upright P wave in lead II preceeding every QRS complex (indicating that the pacemaker is coming from the sinus node and not elsewhere in the atria) with an atrial rate of greater than 100 per minute. Usually the ventricular rate (indicated by the QRS complex rate), is also greater than 100 since in most cases every P wave conducts through the AV node to the ventricules to produce a QRS complex. On occassion the sinus rate can be different than the ventricular rate (AV dissociation). Treatment is aimed at the primary cause. The differential diagnosis for sinus tachycardia includes: 1) Exercise 2) Anemia 3) Dehydration/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 |
|
|
Home | Cardiology Review
| ECG Review
| Book Review
| Cardio News
Contact Us | About Us | Disclaimer LearnTheHeart.com is Copyright 2004-2009 ALL RIGHTS RESERVED |
