Does sinus tachycardia increase your probability of a sudden cardiac arrest?

No. However, there is a reason for sinus tachycardia which may lead to further cardiac difficulties. Get checked for possible reasons.
Depends. It does increase the risk in certain situations - in infection, after severe injury, or after a heart attack (myocardial infarction). You can have it from exercise or ever stress alone without much increase in risk... Unless you have heart disease.

Related Questions

Have sinus tachycardia/pvcs/sinus arrhythmia/palpitations. 23 years old. Normal ecg/echo/blood tests. What are my chances for cardiac arrest?

Echo. When cardiac mechanical function and structure are normal, the risk of cardiac arrest is low unless there is an associated ischemic or metabolic problem. Read more...
Understand the terms. At 25, possibility of cardiac arrest is remote even with family history. SINUS TACHYCARDIA is a rapid, otherwise normal beat. SINUS ARRYTHMIA refers to the normal variation in pulse rate with the breathing cycle seen in young athletes. PVCs are extra beats generated in lower chamber for many reasons, rarely serious. PALPITATIONs are literally the awareness of your heartbeat caused by any of these. Read more...

What are my chances of having a sudden cardiac arrest death? Normal echo. But have lots of couplets, pvcs and sinus pauses.

Probably very low. But a lot depends on family history of sudden death and any more malignant arrythmias. You may want to have an event monitor placed and get an excercise treadmill test even though you are still youmg this is to look at any excercise induced arrythmias you may develop.. Many young people have arrythmias that resolve as you get older. Read more...
Low. One should be evaluated for thyroid or chemical imbalances as well as intrinsic arrythmias. Read more...

Does ist (inappropriate sinus tachycardia) cause heart attack symptoms?

Unlikely. Sinus tachycardia is normal with exercize, activities, excitement, and common with fever and illnesses. In the face of coronary disease, a fast heart beat can increase demand and precipitate events. Read more...

I am always having the intense fear and anxiety about carcinophobia. Can this anxiety lead to a sudden cardiac arrest?

Unlikely. It is very unlikely that ONLY anxiety would lead to a heart attack. Anxiety can increase blood pressure, heart rate and breathing but in over 15 years of practice I have never met or heard of someone who died from a panic attack. If anxiety is interfering in daily functioning consider professional help. One strategy: identify what you can control and focus on an action plan & Practice relaxing. Read more...