Could a heart rate of 200 beats per minute be sinus tachycardia?

In a child, yes. In adults a hr of 200 is abnormal. In children the hr may reach 200 with vigorous activity or anxiety/distress. In infants the hr can often reach 200 with intense crying, or with fever.
Yes. But it will depend on the age of the patient and the circumstances. A neborn baby can easily have a hr of 200 when crying or even feeding; with vigorous cardio-vascular exercise a healthy young adult's hr can reach 200 BPM, but if that hr occurs at rest you must suspect an abnormality. Have yourself checked.

Related Questions

Can heart rate of 180 (caught on 14 day loop) still be considered sinus tachycardia? What can cause this if it's not my heart? No exercise/anxiety

Unlikely. Maximum HR is age related. At your age, 180 can be due to sinus tachy but only with reason eg, strenuous exercise, severe pain, anxiety thyroid XS or infection. More likely you have supraventricular tachycardia, a common but pathological condition. Your doctor will discuss treatment options. Meanwhile avoid nicotine, caffeine, alcohol, pseudoephedrine, and recreational drugs.

How can heart rate go for it to be considered not sinus tachycardia?

FasterPussycatKill!! There are numbers published for this. Like anything over 100 beats per minute is considered tachycardia and anything over 120 serious and 150 very serious. But that's Bell Curve statistics. It also depends on the specific situation. Some people are very comfortable and OK with a pulse of 110, some at 40.Also, if you are exercising you can get sinus tachycardic up to 240! So more info is really needed.
Two different issues. (1) Tachycardia: defined as any heart rate above 100 BPM, regardless of rhythm. (2) Sinus: refers to the heart muscle cells presumably initiating each heart contraction, i.e. the rhythm (each contraction) is starting within the sinus node (thus sinus rhythm), vs. Other cells within the atria [ectopic atrial beat (s)/rhythm], AV node [nodal beat (s)/rhythm] or ventricle [ventricular beat (s)/rhythm].
Above 100. Sinus tachycardia is heart rhythm originating from the sinoatrial node, defined as a rate greater than 100 beats/min in an average adult. The normal resting heart rate in the average adult ranges from 60–100 beats/min. In some individuals can go up to 130 beats/min. Supraventricular tachycardia at least 100 beats a minute and may reach 300 beats a minute. ECG usually helps differentiate.

Can sinus tachycardia cause heart to race even though the heart rate is normal? What should I do for something like this? I am on no meds for this.

What you have asked. Does not make sense. Sinus tachycardia means that the heart rate is greater than 120 BPM and the mechanism for activation is coming from the sinus node. You cannot have a normal heart rate and heart racing at the same time. You can have palpitations or feel like your heart is racing but if your heart rate is normal than what you are feeling is not your heart.
Paroxysmal - PSVT. This condition sounds like Paroxysmal Supraventricular (or Atrial) Tachycardia - PSVT for short. During times when your heart is not "racing", the heart rate is normal. The times when your heart is racing is when you need to be on a monitor of some type (Holter or E-vent) to make a diagnosis & figure out exactly what type of PSVT you have & what to treat it with. Talk to your doctor / cardiologist.
Yes. Sinus tachycardia is defined as a heart rate greater than 100 beats per minute. Depending on the degree of tachycardia and the individual patient, one may feel their heart racing. Sinus tachycardia is normal and expected with exertion, sickness, or excitement. Sinus tachycardia is not normal when resting comfortably without any associated condition. If resting HR is elevated, likely needs eval.

Can a heart rate of 160 while resting be simple sinus tachycardia or is is usually SVT?

Depends. At your age it could be either. I have seen both. If you are at rest, calm and comfortable and it continues to stay at 160, might be SVT.

What would cause fast heart rate and pvcs while drinking? Ii have a history of pvcs and sinus tachycardia.

Drinking what? If it's coffee or an energy drink, that might be your answer. Otherwise it may just be that you have a history of pvcs and these tend to be sporadic.
Atrial Fibrillation. Atrial fibrillation is disorganized heart muscle activity (looks like quivering) of the upper chambers of the heart. The result is that the bottom chamber doesn't get it's usual rhythmic electrical stimulus and it squeezes after slowly filling for longer than it usually takes. This feels like fluttering with strong beats in between. You need medical attention -- can be dangerous.

I have sinus tachycardia heart rate sometimes goes up to110-126.Have mild mitral value leak. Heart hurts alot & though my back Dr said heart is ok?

My Opinion only. Your symptoms, rapid heart rate, "heart" pain along with a common finding (mild mitral valve "leak) are the signs/symptoms of someone who has A LOT OF ANXITY about your heart!! Deal with the ANXITY and your symptoms, in my opinion, will VANISH. (A mild mitral valve leak is usually AYSYMPTOMATIC! Hope this helps BE WELL...... Dr Z.

I have been coming off bisoprolol with the advise of my dr which was used for sinus tachycardia My heart rate at rest is 130 bpm how can I lower this?

Try exercise. And make sure your bisprolol was tapered carefully if you were on a high dose. Overall though it seems like a really good idea to get off of it if it was just for sinus tachycardia.