The development of cardiac arrhythmias is NOT caused by a violation of:

• automatism

• conduction

• excitability

• Contractility

What is not typical for atrioventricular paroxysmal tachycardia:

• sudden onset of an attack of tachycardia up to 140-220 / min

• maintaining the correct rhythm during an attack

• deformation of the ventricular QRS complexes

• absence of deformation of the ventricular QRS complexes

• the appearance of negative P waves behind the QRS complexes

What is not typical for atrial paroxysmal tachycardia

• a sudden onset of an attack of increased heart rate

• the absence of a P wave before the QRS complex

• an increase in the number of heart contractions up to 140-250 / min.

• Deformation of the P wave

• Presence of a P wave before each QRS complex

With complete atrioventricular blockade, for the relief of bradycardia at the prehospital stage, do not use:

• atropine

• cordiamine

• eufillin

• adrenaline

Pathogenetic factors in the development of cardiac arrhythmias in IHD do not include:

• ATP deficiency in myocardial cells

• accumulation of potassium ions in cardiomyocytes

• accumulation of calcium ions in myocardial cells

• loss of potassium ions by cardiomyocytes

• decrease in pH in cardiomyocytes

Which of the following is not a cause of ventricular fibrillation:

• electrical inhomogeneity of the myocardium   

• overstretching of the atrial myocardium

• decrease in extracellular concentration of potassium ions in the myocardium

• increase in extracellular concentration of potassium ions in the myocardium

• stimulation of the sympathetic nervous system

Tachycardia in heart failure does NOT develop:

• due to excitation of baroreceptors at the mouth of the vena cava (Bainbridge reflex)

• due to congestion in the systemic circulation

• due to activation of the SAS

• due to a decrease in venous return to the heart

• due to hypoxemia

Widening and deformation of the QRS complex are not observed:

• with idioventricular (ventricular) rhythm

• with sinoatrial blockade

• with atrioventricular blockade of the 1st degree

• with atrioventricular blockade of the 3rd degree

• with blockade of the bundle of His bundle

Choose an invasive treatment for arrhythmias:

• pericardiectomy

• catheter percutaneous balloon valvuloplasty

• implantation of portable cardioverter-defibrillators

Name ECG - signs of supraventricular paroxysmal tachycardia:

• equal distances between R-R, normal QRS complex

• different distances between R.-R; 212

• increased Q-T interval

• deformed broadened QRS complex