Published in EMT. Tags: cardiovascular.
Truth Be Told, The Dispatcher, EMS, and the ER Couldn’t Find A Heart Attack In A Basket Of Puppies Most cases of Acute Coronary Syndrome are dispatched to EMS as a chest pain call. Ambulance services will send an Advanced Life Support ambulance to the scene. The Advanced Life Support Ambulance has the capability of […]
Published in EMT. Tags: cardiovascular.
Acute coronary syndrome (ACS) refers to a group of conditions that include ST-elevation myocardial infarction (STEMI), non-ST elevation myocardial infarction (NSTEMI), and unstable angina. It is a type of coronary heart disease (CHD), which is responsible for one-third of total deaths in people older than 35. Some forms of coronary heart disease can be asymptomatic, […]
Published in EMT. Tags: cardiovascular.
Cardiogenic shock, also known as cardiac shock, happens when the heart cannot pump enough blood and oxygen to the brain and other vital organs. This is a life-threatening emergency. Without oxygen-rich blood reaching the brain and other vital organs, blood pressure drops, and the pulse slows. Most often the cause of cardiogenic shock is a serious […]
Published in EMT. Tags: cardiovascular.
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue. Perfusion is measured as the rate at which blood is delivered to tissue, or volume of blood per unit time (blood flow) per unit tissue mass. The word is derived from the French verb “perfuser” meaning to “pour […]
Published in EMT. Tags: cardiovascular.
How the Heart Works The heart is an organ, about the size of a fist. It is made of muscle and pumps blood through the body. Blood is carried through the body in blood vessels, or tubes, called arteries and veins. The process of moving blood through the body is called circulation. Together, the heart and vessels make up […]
Published in EMT. Tags: cardiology.
The period of time that begins with contraction of the atria and ends with ventricular relaxation is known as the cardiac cycle. The period of contraction that the heart undergoes while it pumps blood into circulation is called systole. The period of relaxation that occurs as the chambers fill with blood is called diastole. Both the atria and […]
Published in EMT. Tags: cadiovascular.
Aspirin (ASA) Current guidelines recommend that people with coronary artery disease (CAD) receive antiplatelet therapy with either aspirin or Clopidogrel (Plavix). Aspirin therapy is very helpful for people with CAD or a history of stroke. If the patient has been diagnosed with CAD, their health care provider may recommend that a daily dose (from 75 to 162 mg) […]
Published in EMT. Tags: cardiovascular.
The diving reflex, also known as the diving response and mammalian diving reflex, is a set of physiological responses to immersion that overrides the basic homeostatic reflexes, and is found in all air-breathing vertebrates studied to date. It optimizes respiration by preferentially distributing oxygen stores to the heart and brain, enabling submersion for an extended […]
Published in EMR. Tags: anatomy, cardiovascular.
Classification & Structure of Blood Vessels Blood vessels are the channels or conduits through which blood is distributed to body tissues. The vessels make up two closed systems of tubes that begin and end at the heart. One system, the pulmonary vessels, transports blood from the right ventricle to the lungs and back to the left atrium. The other system, the systemic vessels, […]
Published in EMR. Tags: anatomy, cardiovascular, neurology.
Cardiac Muscle Contracts, Conducts Electricity, And Sometimes Generates It’s Own Impulse Recall that cardiac muscle shares a few characteristics with both skeletal muscle and smooth muscle, but it has some unique properties of its own. Not the least of these exceptional properties is its ability to initiate an electrical potential at a fixed rate that […]