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When a patient is bleeding heavily from a wound, the immediate priority is to control the bleeding. The best initial action is to apply direct pressure to the wound using a clean cloth or bandage. This helps to stem the flow of blood and allows time for clotting to begin. Elevating the limb can also help reduce blood flow to the area, but applying direct pressure is the primary and most effective method. Tourniquets are used only as a last resort when direct pressure and elevation do not control the bleeding.

References:

American Red Cross First Aid Manual

Emergency Care and Transportation of the Sick and Injured (AAOS)

An inflamed condition of the tendon and tendon muscles is referred to as tendonitis. Tendonitis is the inflammation or irritation of a tendon, often caused by overuse or repetitive movements. It commonly affects the shoulders, elbows, wrists, knees, and heels.

References:

Tendinopathy: From Basic Science to Clinical Management by Savio L-Y. Woo and Per A. F. H. Renström

Principles of Orthopedic Practice by Roger H. Michael

One complete heart beat, combining the contraction (systole) and relaxation (diastole) phases, is known as the cardiac cycle. The cardiac cycle consists of two main phases: systole, where the heart muscle contracts to pump blood out of the chambers, and diastole, where the heart muscle relaxes to allow the chambers to fill with blood. This sequence ensures that oxygenated blood is circulated throughout the body and deoxygenated blood is sent to the lungs for oxygenation.