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Beck's triad is a collection of three medical signs associated with acute cardiac tamponade, a medical emergency when excessive fluid accumulates in the pericardial sac around the heart and impairs its ability to pump blood.
Cardiology Pulseless electrical activity ( PEA ) is a form of cardiac arrest in which the electrocardiogram shows a heart rhythm that should produce a pulse , but does not. Pulseless electrical activity is found initially in about 20% of out-of-hospital cardiac arrests [ 1 ] and about 50% of in-hospital cardiac arrests.
Patients have died not long after their circulation has returned. One study showed that those who had had an out-of-hospital cardiac arrest and had achieved return of spontaneous circulation, 38% of those people had a cardiac re-arrest before arriving at the hospital with an average time of 3 minutes to re-arrest. [8]
The advanced EMT or AEMT is the new mid-level EMS provider that has been introduced at the national level according to the new national EMS scope of practice model. [3] The AEMT replaced the EMT-I/85 and EMT-I/99, however some states have continued to teach similar levels, but they are not nationally recognized.
A criterion for sinus rhythm is that P waves and QRS complexes appear 1-to-1, thus implying that the P wave causes the QRS complex. [50] Once sinus rhythm is established, or not, the second question is the rate. For a sinus rhythm, this is either the rate of P waves or QRS complexes since they are 1-to-1.
According to the American Heart Association, out-of-hospital cardiac arrest can affect more than 300,000 people in the United States each year. [5] Three minutes after the onset of cardiac arrest, a lack of blood flow starts to damage the brain, and 10 minutes after, the chances of survival are low. [6]
Is usually made up of 3 levels in the US. EMT-B, EMT-I (EMT-A in some states) and EMT-Paramedic. The National Registry of EMT New Educational Standards for EMS renamed the provider levels as follows: Emergency Medical Responder (EMR), Emergency Medical Technician (EMT-B), Advanced EMT (AEMT), and Paramedic (EMT-P).
Afterload is a determinant of cardiac output. [1] Cardiac output is the product of stroke volume and heart rate. [2] Afterload is a determinant of stroke volume (in addition to preload, and strength of myocardial contraction).