Look up: Sinus Tachycardia

1. Sinus tachycardia
   a regular heart rate of over 100 beats per minute
   Found on http://www.medichecks.com/glossary.cfm?l
   
   
2. Sinus tachycardia
   Sinus tachycardia: A fast heartbeat (tachycardia) because of rapid firing of the sinoatrial (sinus) node. The sinoatrial (or sinus) node is the natural pacemaker of the heart. It is located in the wall of the right atrium (the right upper chamber of the heart). Normal cardiac impulses start there an...
   Found on http://www.medterms.com/script/main/art.
   
   
3. sinus tachycardia
   A fast heartbeat (tachycardia) occurring because of rapid firing by the sa node, the natural pacemaker of the heart. Electrical signals initiated in the sa node are transmitted to the atria and the ventricles to stimulate heart muscle contractions heartbeats. Sinus tachycardia is usually a rapid con...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
4. sinus tachycardia
   (ST) tachycardia originating in the sinoatrial node, having a rate of usually 100 to 160 beats per minute; conduction through the ventricles is normal. During exercise or stress this is normal, but if it occurs during rest it is abnormal.
   Found on http://www.encyclo.co.uk/local/21001
   
   
5. Sinus Tachycardia
   Tachycardia of slow onset and cessation that occurs as a result of environmental or physiologic factors that place a demand on the pumping action of the heart. Examples include exercise, anxiety, fever, low blood pressure, congestive heart failure, etc.
   Found on http://www.pregnology.com/AZ/S/4
   
   
6. sinus tachycardia
   Type: Term Definitions: 1. tachycardia originating in the sinus node.
   Found on http://www.medilexicon.com/medicaldictio
   
   
7. Sinus tachycardia
   | ICDO = | OMIM = | MedlinePlus = | eMedicineSubj = | eMedicineTopic = | MeshID = D013616 | --> `Sinus tachycardia` (also colloquially known as `sinus tach` or `sinus tachy`) is a heart rhythm with elevated rate of impulses originating from the sinoatrial node, defined as a rate greater than 100 b...
   Found on http://en.wikipedia.org/wiki/Sinus_tachy