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Cardiac arrest - Diagnosis | | Cardiac arrest - Diagnosis: Encyclopedia II - Cardiac arrest - Diagnosis | | Cardiac Arrest is defined as a heartbeat which does not result in efficient pumping of blood. In many cases, lack of carotid pulse is the gold standard for diagnosing cardiac arrest, but pulselessness (particularly in the peripheral pulses) may be a result of other conditions.
In a hospital or ambulance, cardiac arrest is identified by the lack of a pulse (or lack of heartbeat if listened to through a steth ...
See also:Cardiac arrest, Cardiac arrest - Etiology, Cardiac arrest - Treatable causes, Cardiac arrest - Diagnosis, Cardiac arrest - Treatment, Cardiac arrest - First aid, Cardiac arrest - Other prehospital care, Cardiac arrest - Hospital treatment, Cardiac arrest - Ethical Issues | | | Cardiac arrest, Cardiac arrest - Diagnosis, Cardiac arrest - Ethical Issues, Cardiac arrest - Etiology, Cardiac arrest - First aid, Cardiac arrest - Hospital treatment, Cardiac arrest - Other prehospital care, Cardiac arrest - Treatable causes, Cardiac arrest - Treatment | | |
| | | Cardiac arrest: Encyclopedia II - Cardiac arrest - Diagnosis
Cardiac arrest - Diagnosis
Cardiac Arrest is defined as a heartbeat which does not result in efficient pumping of blood. In many cases, lack of carotid pulse is the gold standard for diagnosing cardiac arrest, but pulselessness (particularly in the peripheral pulses) may be a result of other conditions.
In a hospital or ambulance, cardiac arrest is identified by the lack of a pulse (or lack of heartbeat if listened to through a stethoscope), and advanced life support is given.
Out of hospital, lay rescuers identify cardiac arrest in a number of ways. In the USA, most lay rescuers are trained to check for a carotid pulse, whereas in the UK, rescuers are taught that a lack of normal breathing is evidence of cardiac arrest, and they begin CPR without checking a pulse.
An ECG clarifies the exact diagnosis and guides treatment, but basic life support should begin without awaiting an ECG. The ECG may reveal:
- asystole (known colloquially as a flatline) - a complete stoppage of the heart
- pulseless electrical activity (formerly called electromechanical dissociation) - where the heart's electrical system is working normally but there is a problem with mechanical function (so the rhythm on the heart monitor appears normal, but no pulse)
- ventricular fibrillation - A quivering of the ventricles
- ventricular tachycardia - The ventricles pumping too fast
Other related archivesACLS, CPR, Cardiopulmonary resuscitation, Cardiovascular diseases, Coronary heart disease, Defibrillation, ECG, Hypothermia, Hypovolemia, Hypoxia, IV, IV crystalloids, IV fluids, Medical emergencies, PEA, Tamponade (Cardiac), Tension pneumothorax, Thrombosis, Toxins, UK, USA, United States, advance directive, advance health directive, advanced cardiac life support, advanced life support, ambulance, angioplasty, antidote, aorta, arterial blood gas, asystole, automated external defibrillator, bag-valve-mask, basic life support, bleeding, blood, blood electrolyte test, blood transfusions, body fluids, brain, breathing, calcium, cardiac bypass, cardiomyopathies, cardiopulmonary resuscitation, carotid pulse, cell, clavicular, core body temperature, dead, death, defibrillation, developed world, diagnosis, do not resuscitate, doctor, drowning, electrolytes, electromechanical dissociation, emergency, emergency medicine, endotracheal tube, external bleeding, flatline, gold standard, haemostasis, heart, heart rhythm, hospice, hospital, hypovolemia, hypoxia, intercostal space, intubation, lose consciousness, lungs, medical emergency, medical records, medication, myocardial infarction, osteoporosis, oxygen, paramedics, patients, pericardiocentesis, pericardium, pleural cavities, potassium, pulmonary embolism, pulse, pulseless electrical activity, resuscitation, rib, stop breathing, surgery, systole, temperature, terminal illness, thoracotomy, thrombolysis, toxicology, trachea, urine, ventricles, ventricular fibrillation, ventricular tachycardia, vital organs
 Adapted from the Wikipedia article "Diagnosis", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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