1) What is one of the main criteria for identifying pulseless ventricular tachycardia rhythm according to the text? a) Rhythm with narrow QRS complex b) Presence of a pulse in the patient c) Rate less than 180 beats per minute d) Origin of the rhythm in the atria 2) What is a key characteristic of pulseless ventricular tachycardia rhythm that distinguishes it from other types of tachycardias according to the text? a) Presence of a pulse in the patient b) Rate less than 180 beats per minute c) Rhythm with narrow QRS complex d) Origin of the rhythm in the atria 3) What is the primary cause of Ventricular Fibrillation (VF) according to the text? a) Hyperirritability in the atria b) Coordinated contractions within the ventricles c) Lack of blood flow to the heart d) Presence of pacemakers in the atria 4) What happens within the ventricles during Ventricular Fibrillation (VF) that leads to ineffective cardiac output? a) Coordinated firing of muscle cell b) Hyperirritability causing quiverin c) Development of pacemakers d) Simultaneous contractions of muscle cells 5) What is the potential outcome if Ventricular Fibrillation (VF) is not treated promptly? a) Increased heart muscle oxygenation b) Restoration of coordinated contractions c) Development of asystole d) Decreased hyperirritability 6) How is Ventricular Fibrillation (VF) confirmed according to the text? a) Blood pressure measurement b) EKG or AED  c) Pulse check d) Physical examination. 7) What defines first-degree AV block according to the text? a) PR interval lengthened beyond 0.20 seconds b) Delay in electrical impulse from ventricles to atria c) PR interval less than 0.20 seconds d) Shortening of the PR interval 8) n the context of ACLS when is first-degree heart block considered clinically significant? a) When it involves electrolyte imbalance b) In the absence of any underlying conditions c) During myocardial infarction. d) When the PR interval is normal 9) Why is recognition of major AV blocks important in the context of ACLS? a) To guide treatment decisions based on the block type b) to determine the cause of increased vagal tone c) to assess the PR interval in infants and children d) To assess the PR interval in infants 10) What are some common causes of first-degree AV block mentioned in the text? a) Normal conduction system variants b) Increased sympathetic tone c) Lack of myocardial infarction d) Electrolyte disturbances, myocarditis, and medications 11) What is one of the main characteristics of second-degree AV block (Type I), also known as Mobitz 1 or Wenckebach, as mentioned in the text? a) Complete blockage of the atrial impulse b) Progressive prolongation of the PR interva c) Irregular atrial rhythm d) Presence of a QRS impulse 12) What is the typical range of atrial rates in atrial flutter, as mentioned in the text? a) 120-150 beats per minute b) 180-220 beats per minute c) 240-350 beats per minute d) 300-370 beats per minute e) 90-100 beats per minute 13) What is the recommended initial shock dose for cardioverting unstable atrial flutter, according to AHA? a) 20-50 J b) 100-150 J c) 50-100 J d) 200-250 J e) 250-300 J 14) What typically happens once the p-wave is blocked and no QRS is generated in second-degree AV block (Type I)? a) The atrial rhythm becomes irregular b) The PR interval shortens c) The QRS impulse is immediately generated d) The cycle restarts with PR interval prolongation 15) Why is atrial flutter considered more sensitive to electrical direct-current cardioversion than atrial fibrillation, as stated in the text? a) It requires a higher energy shock b) It lacks self-perpetuating loop activity c) It usually presents with stable rhythms d) It involves a more organized atrial activation e) It has slower atrial rates 16) What is the common outcome when atrial flutter is left untreated, according to the text? a) Stabilization of the rhythm b) Atrial rates decrease below 100 beats per minute c) Resolution of hemodynamic instability d) Spontaneous conversion to sinus rhythm e) Degeneration into atrial fibrillation 17) What are some common causes of second-degree AV block (Type I) mentioned in the text? a) Lack of myocardial infarction b) Conduction block at the atria that can be reversed c) Increased sympathetic tone d) Myocarditis, medications, and increased vagal tone 18) What is a characteristic feature of classic Paroxysmal Supraventricular Tachycardia (SVT) as described in the text? a) Wide QRS complex b) Retrograde P waves c) Originating from the ventricular conduction system d) Irregular rhythm e) Slow heart rate 19) How does a rapid heart rate in SVT affect the time available for ventricular filling, and what is the consequence? a) Increases ventricular filling time, leading to hypertension b) Causes irregular heart rhythm c) Promotes diastolic dysfunction d) Reduces the time for ventricular filling, leading to decreased cardiac output and low blood pressure e) Has no effect on ventricular filling time 20) How is atrial flutter typically managed in ACLS when it produces hemodynamic instability and serious signs and symptoms? a) Use of synchronized cardioversion b) Performance of atrial ablation procedure c) Spontaneous resolution without medical intervention d) Immediate administration of antiarrhythmic drugs e) Application of pharmacological interventions

EKG

ustvaril/-a
Natisni
Vdelaj

Lestvica vodilnih

Vizualni slog

Možnosti

Preklopi predlogo

Obnovi samodejno shranjeno: ?