Cardiac Arrest Pathophysiology

Cardiac arrest is defined as

What is the most common cause of cardiac arrest within the adult population

Bystander CPR is attempted in 70% of out-of-hospital cardiac arrest calls to UK ambulance services. What is the survival to discharge rate within the UK

A cardiac arrest from a cardiac aetiology resulting in ventricular fibrillation progresses as

Which are the correct times for the different phases within a cardiac arrest

Within the electrical phase of a sudden VF/VT cardiac arrest, that patient’s physiology would be considered as mostly normal. Therefore, what is the priority treatment for this patient

The primary aim of CPR is to raise coronary perfusion pressures leading to some oxygenation of the heart and other organs. How long can it take to increase this pressure to the level required via CPR

During the compression or systolic phase of CPR, blood flow through the coronary arteries can be described as absent. This is because

The decompression cycle or diastolic phase of CPR is important because

Why is cardiac perfusion so important during the circulatory phase of a ventricular fibrillation cardiac arrest

Within the circulatory phase of a VF cardiac arrest the myocardium becomes increasingly sensitive to interruptions in perfusion. What action can crews/responders perform to reduce these

What characterises the metabolic phase of cardiac arrest

Patients in sudden cardiac arrest have higher mortality rates when they are attended to in which phase of their collapse

Why is it important to consider the impact of a cardiac arrest induced ischaemic-reperfusion injury in the management of patients who have experienced ROSC

Which of the following are mechanisms by which ischaemic-reperfusion injury can inflict systemic harm