V fib treatment acls

Ventricular tachycardia (VT) is a wide complex tachycardia, defined as three or more consecutive beats at a rate of more than 100 per minute, arising from the ventricle.[1] Ventricular tachycardia is a potentially life-threatening arrhythmia, and it is responsible for the majority of sudden cardiac deaths in the United States.[2] It is …

V fib treatment acls. N Engl J Med. 2019;380:1499-1508. Atrial fibrillation (AF) is an abnormal rhythm caused by the rapid firing of multiple cells in the atria, the upper chambers of the heart, which cause the atria to quiver ineffectively. Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice and is associated ...

Given the difficulty in converting RVF to a perfusing rhythm, here are a few strategies beyond the standard therapy to add to your toolbox. Refractory ventricular fibrillation (RVF) is a life-threatening cardiac arrhythmia unresponsive to traditional methods of defibrillation and advanced cardiovascular life support (ACLS). RFV has …

In ACLS, Lidocaine is used intravenously for the treatment of ventricular arrhythmias. (VT/VF) It is also useful for the treatment of stable monomorphic VT with preserved ventricular function and for stable polymorphic VT with preserved left ventricular function, normal QT interval, and correction of any electrolyte imbalances. The reduction in cardiac output resulting can cause symptoms ranging from decreased level of consciousness to a total lack of cardiac output, known as a pulseless ventricular tachycardia. Unstable ventricular tachycardia may present with the following characteristics: Broad QRS arrhythmia. Highly accelerated heart rates.Lidocaine is one of several ACLS drugs used to treat cardiac arrest from ventricular tachycardia (VT) and Ventricular Fibrillation (VF). Lidocaine is considered a second-line antiarrhythmic drug and should be administered in VF/VT cases where amiodarone is either unavailable or ineffective. While lidocaine is a well-known and established ACLS ...In patients with cardiac arrest refractory to standard ACLS, vasopressin induced an increase in blood pressure, and in some cases, ROSC. 51 In a similar clinical evaluation after approximately 40 minutes of unsuccessful ACLS, 4 of 10 patients responded to vasopressin and had a mean increase in coronary perfusion pressure of 28 mm Hg. 46 In a ...Completing prerequisite coursework for advanced cardiac life support certification results in the receipt of eight continuing education units, or CEUs. CEUs are alternatively known...V-tach can be life-threatening if it's sustained (lasting more than 30 seconds). VFib. A fast, abnormal rhythm starts in the ventricles and prevents blood from being pumped throughout the body. Ventricle walls twitch or quiver uncontrollably and irregularly. VFib is always life-threatening, causing sudden cardiac arrest.

Summary. Ventricular fibrillation ("VF" or " V-fib ") is a life-threatening. cardiac arrhythmia. characterized by disorganized, high-frequency ventricular …Atrial fibrillation is when multiple electrical impulses are being generated in the atria at the same time. This causes chaotic myocardial responses that may diminish both the pre-load and effectiveness of the cardiac contraction. This can lead to: Development of microemboli due to stagnant blood flow from the atria.Atrial fibrillation is generally considered a tachyarrhythmia, (an arrhythmia with a heart rate of more than 100 beats per minute). Patients experiencing atrial fibrillation generally have the following characteristics: P waves are absent. The QRS complex is narrow (less than 0.12 seconds) The R-R intervals are consistently irregular.Ventricular Fibrillation. Ventricular fibrillation, or VF, is considered the most serious abnormal heart rhythm. VF is extremely dangerous and can lead to sudden cardiac death. Without treatment, the condition is fatal within minutes. Disordered electrical activity causes the heart’s lower chambers (ventricles) to quiver instead of ... In ACLS, Lidocaine is used intravenously for the treatment of ventricular arrhythmias. (VT/VF) It is also useful for the treatment of stable monomorphic VT with preserved ventricular function and for stable polymorphic VT with preserved left ventricular function, normal QT interval, and correction of any electrolyte imbalances.

Used to treat Atrial Fibrillation, Atrial Flutter, Atrial Tach, and Symptomatic VT. Shock performed at peak of R wave. Requires proper lead/pad placement to monitor ECG. Pediatric shock energy level: Monophasic or Biphasic: 0.5-1.0 J/kg Assure the patient is sedated and comfortable during shock delivery. Defibrilation: Used to treat VF and ...When the heart rate is extremely rapid, it may be difficult to determine if the rate is irregular, and the absence of p-waves will be the best indicator of atrial fibrillation. ACLS Treatments: For the purposes of ACLS atrial fibrillation is treated when the arrhythmia/tachyarrhythmia produces hemodynamic instability and serious signs and symptoms.Ventricular fibrillation (sometimes called v-fib for short) is an arrhythmia, a malfunction of the heart’s normal pumping sequence. It is the most common deadly arrhythmia. When it happens, the lower chambers of your heart quiver or twitch instead of completely expanding and squeezing. This means they aren’t pumping blood as they should.It’s administered over 10 minutes. Should the V-tach, whether it’s polymorphic or monomorphic, lapse into V-fib, which can happen, immediately go into your V-fib algorithm. Let’s look at ventricular fibrillation. No pulse. No cardiac output. First drug of choice is epinephrine 1:10,000 1 mg IV push every 3 to 5 minutes. There’s no max ...Aug 20, 2021 ... This video is a response to confusion about using Adenosine for Vtach with a pulse. In this video Marc goes breaks down the AHA algorithm ...Hide Transcript. Ventricular fibrillation (also called VFib or VF) is caused by multiple ectopic electrical impulses which depolarize the myocardium in a chaotic fashion. This results in a quivering (or fibrillatory) heart that cannot produce a pulse or …

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This 2018 ACLS guidelines focused update in- cludes updates only to the recommendations for the use of antiarrhythmics during and immediately after adult ventricular fibrillation …Advanced Cardiovascular Life Support (ACLS) is a set of life-saving techniques and protocols used in emergency situations. This training is crucial for healthcare professionals who...Used to treat Atrial Fibrillation, Atrial Flutter, Atrial Tach, and Symptomatic VT. Shock performed at peak of R wave. Requires proper lead/pad placement to monitor ECG. Pediatric shock energy level: Monophasic or Biphasic: 0.5-1.0 J/kg Assure the patient is sedated and comfortable during shock delivery. Defibrilation: Used to treat VF and ...Show up and participate in class. Get your American Heart Association (AHA) certification. We are an authorized American Heart Association (AHA) training site for certification in BLS, ACLS, PALS, CPR AED, First Aid, and CPR Instructor training.Efficacy of magnesium-amiodarone step-up scheme in critically ill patients with new-onset atrial fibrillation: a prospective observational study. J Intensive Care Med. 2008 Jan-Feb;23(1):61-6. doi: 10.1177/0885066607310181

Advanced cardiac life support (ACLS) in adults - UpToDate. View in. Author: Jonathan Elmer, MD, MS, FNCS. Section Editors: Ron M Walls, MD, FRCPC, FAAEM. Richard L Page, MD. Deputy Editor: Jonathan Grayzel, MD, FAAEM. Literature review current through: Apr 2024. This topic last updated: Mar 28, 2024. INTRODUCTION.Picking the right sealant for foundation cracks can be hard. This guide is here to help by looking at the best kinds of sealants for foundation cracks. Expert Advice On Improving Y...ServiceNow today announced the latest release of its workflow automation platform. With this, the company is emphasizing a number of new solutions for specific verticals, including...Atrial fibrillation (AF) is an abnormal rhythm caused by the rapid firing of multiple cells in the atria, the upper chambers of the heart, which cause the atria to quiver ineffectively. Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice and is associated with increased risk of stroke ...Over the past decade, evidence has consistently shown that the best treatment of atrial fibrillation requires multiple stakeholders committed to providing comprehensive patient-centered care. In addition, as emphasized in this guideline, AF should be thought of in a more holistic sense over an individual patient’s lifetime. ...Pulseless ventricular tachycardia (VT) and Ventricular fibrillation (VF) are life-threatening cardiac rhythms that result in ineffective ventricular contractions. The ventricular motion of VF is not synchronized with atrial contractions. VT or VTach (Figure 25) is a condition in which the ventricles contract more than 100 times per minute.2020 (Updated): (PALS) When perform-ing CPR in infants and children with an advanced airway, it may be reasonable to target a respiratory rate range of. 1 breath every 2 to 3 seconds (20-30/min), accounting for age and clinical condition. Rates exceeding these recommendations may compromise hemodynamics. Used to treat Atrial Fibrillation, Atrial Flutter, Atrial Tach, and Symptomatic VT. Shock performed at peak of R wave. Requires proper lead/pad placement to monitor ECG. Pediatric shock energy level: Monophasic or Biphasic: 0.5-1.0 J/kg Assure the patient is sedated and comfortable during shock delivery. Defibrilation: Used to treat VF and ... Ventricular fibrillation (V-fib) is a dangerous type of arrhythmia, or irregular heartbeat. It affects your heart’s ventricles. Your heart is a muscle system that contains 4 chambers. The 2 bottom chambers are the ventricles. ... There are two stages of treatment for V-fib. The first tries to stops your V-fib immediately to restore a blood ...However, you can’t easily identify the P-Wave. It looks like a flat quiver. A-Fib is a very fast rate between 300 and 650 BPM. Patients exhibiting A-Fib symptoms are usually prescribed blood thinners to prevent blood clots from developing. Atrial Flutter (A-Flutter) A-Flutter is very similar to A-Fib in ACLS heart rhythms.There are two stages of treatment for V-fib: the first is focused on restoring the person’s pulse and blood pressure. The second stage focuses on reducing a person’s chances of developing ventricular fibrillation in the future. Stage one treatments for ventricular fibrillation include: Automated emergency defibrillator (AED), if used ...

Click for next Rhythm Review: Ventricular Fibrillation Top Questions Asked on This Page. Q: What happens after the 2nd dose of Amiodarone is given and the patient is still in the same rhythm?Do we give a 3rd dose immediately or rhythm usually changes after 2nd dose? A: A 3rd and even a 4th dose of 150 mg amiodarone may be administered.The …

Atrial Fibrillation (AFib) rhythm video by the ACLS Certification Institute. To view more videos, check out the ACLS Certification Institute at http://www.ac...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Adenosine has been used in the emergency treatment of arrhythmia for more than nine decades. However, cardiologists are often unfamiliar about its basic mechanism and various diagnostic and therapeutic uses, considering it mainly as a therapeutic drug for supraventricular tachycardia. This article discusses the role of adenosine relevant to ...In one recent case series on 12 patients in refractory VF ( Cortez 2016 ), double sequential defibrillation resulted in ROSC in 3 patients (25%, 95% CI 9% to 53%), all of whom survived to hospital discharge. Two of these patients had good neurologic outcomes at discharge (CPC scores of 1 and 2) while the third had a CPC score of 3.The H’s and T’s of ACLS is a mnemonic used to help recall the major contributing factors to pulseless arrest including PEA, Asystole, Ventricular Fibrillation, and Ventricular Tachycardia. These H’s and T’s will most commonly be associated with PEA, but they will help direct your search for underlying causes to any of arrhythmias ...Figure 3. Adult Cardiac Arrest Algorithm. CPR indicates cardiopulmonary resuscitation; ET, endotracheal; IO, intraosseous; IV, intravenous; PEA, pulseless electrical ...Ventricular Fibrillation which occurs in the out-of-hospital setting should be treated with CPR and an AED. Effective CPR and early defibrillation are the keys to positive outcomes for the unresponsive patient who is in ventricular fibrillation. This ACLS scenario will usually involve one or two rescuers in an out-of-hospital setting.

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Reviewed/Revised Jan 2023. Ventricular fibrillation is a potentially fatal, uncoordinated series of very rapid, ineffective contractions of the ventricles (lower chambers of the heart) caused by many chaotic electrical impulses. Ventricular fibrillation causes unconsciousness in seconds, and if the disorder is not rapidly treated, death follows.Atrial fibrillation is generally considered a tachyarrhythmia, (an arrhythmia with a heart rate of more than 100 beats per minute). Patients experiencing atrial fibrillation generally have the following characteristics: P waves are absent. The QRS complex is narrow (less than 0.12 seconds) The R-R intervals are consistently irregular.Nov 15, 2022 · Ventricular Fibrillation. Ventricular fibrillation, or VF, is considered the most serious abnormal heart rhythm. VF is extremely dangerous and can lead to sudden cardiac death. Without treatment, the condition is fatal within minutes. Disordered electrical activity causes the heart’s lower chambers (ventricles) to quiver instead of ... V.fib and pulseless VT acls algorithms AHA 2015-2020. This is intended for those who need a quick and easy overview of this medications and the algorithm. I...The 2018 AHA Focused Update on ACLS guidelines summarize the most recent published evidence for and recommendations on the use of antiarrhythmic drugs during and immediately after shock-refractory VF/pVT cardiac arrest. The updated guidelines state that amiodarone or lidocaine may be considered for VF/pVT that is unresponsive to defibrillation.Reviewed/Revised Jan 2023. Ventricular fibrillation is a potentially fatal, uncoordinated series of very rapid, ineffective contractions of the ventricles (lower chambers of the heart) caused by many chaotic electrical impulses. Ventricular fibrillation causes unconsciousness in seconds, and if the disorder is not rapidly treated, death follows.The H’s and T’s of ACLS is a mnemonic used to help recall the major contributing factors to pulseless arrest including PEA, Asystole, Ventricular Fibrillation, and Ventricular Tachycardia. These H’s and T’s will most commonly be associated with PEA, but they will help direct your search for underlying causes to any of arrhythmias ...At least 11 mostly small cruise lines including Crystal Cruises, Dream Cruises, Star Cruises, Jalesh Cruises and Blount Small Ship Adventures have shut down since the COVID-19 pand...In patients with cardiac arrest refractory to standard ACLS, vasopressin induced an increase in blood pressure, and in some cases, ROSC. 51 In a similar clinical evaluation after approximately 40 minutes of unsuccessful ACLS, 4 of 10 patients responded to vasopressin and had a mean increase in coronary perfusion pressure of 28 mm Hg. 46 In a ... ….

Pulseless ventricular tachycardia (VT) and Ventricular fibrillation (VF) are life-threatening cardiac rhythms that result in ineffective ventricular contractions. The ventricular motion of VF is not synchronized with atrial contractions. VT or VTach (Figure 25) is a condition in which the ventricles contract more than 100 times per minute.Pulseless ventricular tachycardia (VT) and Ventricular fibrillation (VF) are life-threatening cardiac rhythms that result in ineffective ventricular contractions. The ventricular motion of VF is not synchronized with atrial contractions. VT or VTach (Figure 25) is a condition in which the ventricles contract more than 100 times per minute.The H’s and T’s of ACLS is a mnemonic used to help recall the major contributing factors to pulseless arrest including PEA, Asystole, Ventricular Fibrillation, and Ventricular Tachycardia. These H’s and T’s will most commonly be associated with PEA, but they will help direct your search for underlying causes to any of arrhythmias associated with ACLS.Ventricular tachycardia (V-tach) ECG interpretation for heart rhythms, causes, treatment, nursing interventions Next Generation NCLEX exam and ACLS review.Qu... Atrial fibrillation (AF) is an abnormal rhythm caused by the rapid firing of multiple cells in the atria, the upper chambers of the heart, which cause the atria to quiver ineffectively. Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice and is associated with increased risk of stroke ... Atrial Fibrillation/Atrial Flutter Stable w/uncontrolled rate Assess A ’s, obtain 12 lead EKG ↓ Start IV, vital signs, BP, Sa02 ↓ Review history of A-fib/flutter ↓ Cardizem 0.25 mg/kg (bolus) ↓ A Cardizem drip will then be administered per doctor’s orders as a maintenance infusion, usually 5-15 mg/hr Consider expert consultationAmiodarone is a class III antiarrhythmic agent and is used for the treatment of various types of tachyarrhythmias. Because of the toxicity and serious side-effects of amiodarone, use it cautiously and do not exceed the cumulative total of 2.2 grams in 24 hours. Indications for ACLSTo make things easier, we’ve compiled a quick ACLS review with an updated list of the top 7 ACLS algorithms you need to know so you can begin familiarizing yourself. The algorithms in this ACLS-made-easy guide are as follows: Adult Cardiac Arrest Algorithm. Cardiac Arrest Circular Algorithm. Suspected Stroke Algorithm. V fib treatment acls, Ventricular Fibrillation which occurs in the out-of-hospital setting should be treated with CPR and an AED. Effective CPR and early defibrillation are the keys to positive outcomes for the unresponsive patient who is in ventricular fibrillation. This ACLS scenario will usually involve one or two rescuers in an out-of-hospital setting. , Ventricular Fibrillation (V-Fib) Hypertrophic Cardiomyopathy; Recurrent Hemodynamically; Unstable Ventricular Tachycardia; Supraventricular Tachyarrhythmias; Amiodarone Dosage. For VT / V-Fib: 300 mg IV/IO. May administer additional 150 mg following initial dose if VF/pVT persists after 3-5 minutes. For Tachy / VT: 150 mg IV/IO over 10 minutes ..., It is a type of ventricular arrhythmia or abnormal heartbeat of the ventricles. In pulseless ventricular tachycardia, the heart contracts too fast ( tachycardia ). This prevents the ventricles from filling with blood and stops blood flow to the body. Without blood flow, a person has no pulse. This lack of blood flow can quickly lead to organ ..., https://www.proacls.com - ACLS Certification Training Videos**Get $20 off your certification or recertification with the discount code youtubeacls2017The key..., These are among the best long-term stocks to buy in Q4. ACLS, AXSM, GBT, GPRO, HCAT, SKLZ, and VERU can make great investments Luke Lango Issues Dire Warning A $15.7 trillion tech ..., , At least 11 mostly small cruise lines including Crystal Cruises, Dream Cruises, Star Cruises, Jalesh Cruises and Blount Small Ship Adventures have shut down since the COVID-19 pand..., Refractory ventricular fibrillation (RVF) is a life-threatening cardiac arrhythmia unresponsive to traditional methods of defibrillation and advanced cardiovascular life support ( ACLS ). Current literature lacks a uniform definition for RVF, however, some studies provide more specific clinical definitions of refractory ventricular fibrillation ..., Consider sedation prior to cardioversion but do not delay treatment. If the rhythm is regular with narrow complexes, consider adenosine 6 mg IV rapid push. If the patient is stable, measure the QRS. If QRS is wider than 0.12 seconds, establish IV access and obtain a 12 lead ECG. Consider adenosine only if the rhythm is regular and …, Reflects the start of ventricular relaxation. PR Interval. Onset of the P-wave to the start of the QRS complex. Reflects conduction through the atrioventricular (AV) node. PR Segment. End of the P-wave to the start of the QRS complex. Reflects time delay between atrial and ventricular activation. ST Interval., Amiodarone is an antiarrhythmic agent used in ACLS to treat VF or pulseless VT that does not respond to treatment with defibrillation, CPR, or vasopressors. ... For VT / V-Fib: 300 mg IV/IO. May administer additional 150 mg following initial dose if VF/pVT persists after 3-5 minutes., Atrial flutter is considered a supraventricular arrhythmia that has a rapid or variable ventricular rate. Multiple atrial contractions occur for each ventricular contraction. On an ECG, atrial flutter: Displays a “sawtooth pattern”. Has consistent and identical flutter waves. Has an atrial rate of 250-350 beats per minute., Adult Dosage for Lidocaine: Dosage for cardiac arrest from ventricular fibrillation or pulseless ventricular tachycardia: Initial dose is 1 to 1.5 mg/kg IV or IO. Can also be delivered via endotracheal tube. Dosage for refractory ventricular fibrillation: An additional .5 to .75 mg/kg may be given via IV push., Ventricular fibrillation is always pulseless and must be confirmed by EKG or defibrillator monitor. Defibrillation is the treatment of choice and should occur as soon as possible. The video below shows an example of what ventricular fibrillation will look like when you see it on the defibrillator monitor., Treatment. For the purposes of ACLS, atrial flutter is treated the same as atrial fibrillation. When atrial flutter produces hemodynamic instability and serious signs and symptoms, it is treated using ACLS protocol. For the patient with unstable tachycardia due to this tachyarrhythmia (atrial flutter), immediate cardioversion is recommended., Investment analysts sometimes use Fib projections, or Fibonacci projections, to estimate where a current move in a financial instrument's price might end. Fibonacci theory is cente..., Author: American Heart Association Subject: Please contact the American Heart Association at [email protected] or 1-214-706-1886 to request a long description of this image., METHODS. A comprehensive literature search was conducted from May 12, 2022, to November 3, 2022, encompassing studies, reviews, and other evidence conducted on human subjects that were published in English from PubMed, EMBASE, the Cochrane Library, the Agency for Healthcare Research and Quality, and other selected databases relevant to this guideline., Synchronized cardioversion involves the delivery of a low-energy shock which is timed or synchronized to be delivered at a specific point in the QRS complex (see the image below). A synchronized shock is delivered at this precise moment to avoid causing or inducing ventricular fibrillation. 6 In this example, atrial fibrillation (AF) was ..., Pro Tip #2: The use of procainamide is limited in ACLS for cardiac arrest due to its requirements of slow infusion, as well as its occasional unknown effectiveness. If you're administering procainamide for recurrent ventricular fibrillation and pulseless V-tach, you should give 20mg per minute via IV infusion up to total max dose of 17mg per kg., May 13, 2019 ... LiveWithLauren: Today we are learning about Ventricular Fibrillation and Pulseless Ventricular Tachycardia in ACLS., Approximately 300,000 out-of-hospital cardiac arrests (OHCA) occur annually in the United States, with survival around 8%. 10 The initial rhythm may be ventricular fibrillation (VF), pulseless ventricular tachycardia (VT), asystole, or pulseless electrical activity (PEA). 16 Two-thirds of OHCA has an initial non-shockable rhythm of PEA or asystole with an …, Atrial fibrillation (A-fib) ECG / EKG interpretation, treatment, causes, and nursing review for nurses, nursing students, and NCLEX.Quiz: https://www.registe..., PALS Cardiac Arrest Algorithm 1. Activate emergency medical services, call a pediatric “code blue”, obtain AED or defibrillator 2. Is the rhythm shockable? Rhythm IS shockable (ventricular fibrillation or unstable ventricular tachycardia) 1. Administer shock at 2 Joules/kg 2. Administer high-quality CPR for 2 minutes 3. Check rhythm If not shockable, move to asystole/PEA rhythm protocol If , Given the difficulty in converting RVF to a perfusing rhythm, here are a few strategies beyond the standard therapy to add to your toolbox. Refractory ventricular fibrillation (RVF) is a life-threatening cardiac arrhythmia unresponsive to traditional methods of defibrillation and advanced cardiovascular life support (ACLS). RFV has …, Each of the ACLS Algorithms utilizes a number of drugs which we will classify as the “primary ACLS drugs”. The “primary drugs” are the medications that are used directly in an ACLS Algorithm. Here are the primary ACLS medications broken down by algorithm and a link to its respective page which covers in detail all aspects of medication ..., Asystole and Its Treatment in ACLS. Asystole is defined as a cardiac arrest rhythm in which there is no discernible electrical activity on the ECG monitor. Consequently, it is sometimes referred to as a “flat line.” Confirmation that a “flat line” is truly asystole is an important step in the ACLS protocol., The treatment for ventricular fibrillation is rapid defibrillation. Every minute that defibrillation is delayed, the chance of survival is reduced by 10%. The key steps to treating ventricular fibrillation are: Rapid assessment to confirm cardiac arrest. Starting CPR. Applying the defibrillator and delivering the first shock as soon as possible. , Given the difficulty in converting RVF to a perfusing rhythm, here are a few strategies beyond the standard therapy to add to your toolbox. Refractory ventricular fibrillation (RVF) is a life-threatening cardiac arrhythmia unresponsive to traditional methods of defibrillation and advanced cardiovascular life support (ACLS). RFV has …, Amiodarone is a class III antiarrhythmic agent and is used for the treatment of various types of tachyarrhythmias. Because of the toxicity and serious side-effects of amiodarone, use it cautiously and do not exceed the cumulative total of 2.2 grams in 24 hours. Indications for ACLS , Ventricular fibrillation (V-fib) is a dangerous type of arrhythmia, or irregular heartbeat. It affects your heart’s ventricles. Your heart is a muscle system that contains 4 chambers. The 2 bottom chambers are the ventricles. In a healthy heart, your blood pumps evenly in and out of these chambers., The reduction in cardiac output resulting can cause symptoms ranging from decreased level of consciousness to a total lack of cardiac output, known as a pulseless ventricular tachycardia. Unstable ventricular tachycardia may present with the following characteristics: Broad QRS arrhythmia. Highly accelerated heart rates., Synchronized cardioversion is a procedure similar to electrical defibrillation in that a transthoracic electrical current is applied to the anterior chest to terminate a life-threatening or unstable tachycardic arrhythmia. Unlike defibrillation, which is used in cardiac arrest patients, synchronized cardioversion is performed on patients that still have a …