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Cardiac physiology or heart function is the study of healthy, ... Cardiac muscle undergoes aerobic respiration patterns, primarily metabolizing lipids and carbohydrates.
Cardiopulmonary resuscitation (CPR) is an emergency procedure consisting of chest compressions often combined with artificial ventilation, or mouth to mouth in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person who is in cardiac arrest.
Cardiovascular physiology is the study of the cardiovascular system, specifically addressing the physiology of the heart ("cardio") and blood vessels ("vascular"). These subjects are sometimes addressed separately, under the names cardiac physiology and circulatory physiology .
Agonal respiration occurs in 40% of cardiac arrests experienced outside a hospital environment. Patients with cardiac arrests due to problems with the heart were more likely to experience agonal respirations compared to cardiac arrests from a different cause.
While the cessation of respiration is an obvious sign of sudden death, the cessation of circulation — and particularly the rhythm of the heart — is not as easy to detect. For this reason, the appreciation of artificial circulation as a key factor in resuscitation lagged considerably behind the obvious need for artificial respiration.
Return of spontaneous circulation (ROSC) is the resumption of a sustained heart rhythm that perfuses the body after cardiac arrest. It is commonly associated with significant respiratory effort. Signs of return of spontaneous circulation include breathing, coughing, or movement and a palpable pulse or a measurable blood pressure.
One common sign of respiratory arrest is cyanosis, a bluish discoloration of the skin resulting from an inadequate amount of oxygen in the blood.If respiratory arrest remains without any treatment, cardiac arrest will occur within minutes of hypoxemia, hypercapnia or both.
Ventilation facilitates respiration. Respiration refers to the utilization of oxygen and balancing of carbon dioxide by the body as a whole, or by individual cells in cellular respiration. [1] The most important function of breathing is the supplying of oxygen to the body and balancing of the carbon dioxide levels.