You are on an on-call duty, emergency department nurse sent you the following ECG.

What is your next appropriate step in management of the patient?

A 61-year-old man with a history of CABG is a candidate for elective cholecystectomy. He is relatively asymptomatic, and the 12-lead ECG is provided below.

What is your plan?

A 72-year-old male with a history of CABG 10 years ago and PPM-DR implantation last year due to CHB presented to the ER with a chief complaint of fatigue and dizziness persisting for the past month. Bedside echocardiography revealed an ejection fraction (EF) of 30-35%, moderate mitral regurgitation (MR), and no pericardial effusion.

Based on the ECG findings, what underlying condition or situation could be LESS responsible for these symptoms?

A middle-aged lady with wide complex tachycardia underwent EPS. ECG of Arrhythmia and an EP tracing of high RA pacing are shown below:

What is the most probable diagnosis?

A 31 y/o lady underwent Echocardiography for evaluation of systolic murmur with fixed S2 splitting. Echocardiography is shown:

What is your most likely diagnosis?

A 40 y/o asymptomatic patient evaluated for ejection type systolic murmur.

Echocardiography is shown.

What is the most likely diagnosis?

This ECG is taken during the ablation of case no.459, divided by a blue bar into two segments.

There are subtle changes in ECG, what is your diagnosis?

A 54 years old man with a history of STEMI and primary PCI months ago presented with palpitations, Rest ECG and the arrhythmia ECG are shown : 

What is the most possible diagnosis?

A 30-year-old woman with a history of ASD repair was a candidate for EPS and ablation. Below, you can find the EP tracings

Which statment is wrong ?

A 65 years old man with recurrent palpitation, underwent EPS, Two EP tracings are shown:

What is the most probable diagnosis of the Arrhythmia?

A 37 y/o male patient presented to the ER with prolonged weakness, episodes of chills, fever and dyspnea from 1 month ago and headache during the last weak.
his PMH was unremarkable but in physical examination signs of multiple intra venous injections were obvious. 

below you can find his chest and brain CT scan and echocardiogram 

Besides initiation of antibiotics, what is the best choice? 

Analysis was conducted on a middle-aged patient who experienced an ICD shock; the corresponding tracing is provided below:

Which statement is wrong?

A 17-year-old girl with palpitations underwent EPS, Two tracings of basic ECG and arrhythmia are shown.

What is the etiology of arrhythmia?

A 46 y/o male patent came in to clinic for outpatient follow up , 5 years ago he underwent cardiac surgery.

Bellow you can find his echocardiogram.

What was his cardiac surgery ?

36-year-old female with  hypercholesterolemia presents to the emergency room with 3 hours of chest pain and the following ECG.

How would you manage this patient based on this ECG?

A 40 y/o man known case of hypertrophic cardiomyopathy came to your clinic for consultation for ICD implantation.He was undergone 48 h ECG holter monitoring.

According to figure below what is your suggestion?

A middle-aged patient with history of AVR, symptomatic PVC (30%) unresponsive to beta-blockers and Sotalol. ECG is shown: 

What is your plan? 

Below, you can find the EP tracing of a middle-aged patient with palpitations.

Which statement is NOT correct?

A middle-aged woman presented to the ER with pre-syncope. Below are the serial ECGs taken in the ED:

Which arrhythmias are seen? 

A middle-aged man with frequent PVC and Low LVEF, below you can find EP tracing during PVCs and also ablation.

What statement is wrong?