Question

which heart rhythm is this? Is it Ventriclular tachy cardia?

Pt's underlined rhythm is Sinus Rhythm HR in 90's.

Answer 1

Sinus tachycardia is recognized on an ECG with a normal upright P wave in lead II preceding 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 beats per minute.The ventricular rate (indicated by the QRS complex rate) is usually also greater than 100 bpm because, in most cases, the P wave conducts through the atrioventricular node to the ventricles to produce a QRS complex in a 1:1 fashionincludes the following:   

Exercise

Anemia

Dehydration or shock

Fever/sepsis/infection

Hypoxia

Chronic pulmonary disease

Hyperthyroidism

Pheochromocytoma

Medications/stimulants

Decompensated congestive heart failure

Pulmonary embolus

Sinus tachycardia is rarely a primary cardiac arrhythmia and almost always caused by one of the above conditions. The syndrome of inappropriate sinus tachycardia has been described and is a form of autonomic dysfunction. Sinus node modification or ablation procedures can be done; however, they pose a risk of causing significant sinus node dysfunction, necessitating pacemaker implantation.yes this is a ventricular tachycardia

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