External forces, such as falls and motor vehicle accidents, cause most closed wounds. May closed wounds are relatively small and involve soft tissues; the black eye is an example: Others, however, involve fractures of the limbs, spine, or skill and damage to vital organs within the skull, chest, or abdomen. Massive injury to soft [...]
Direct pressure
Severe bleeding of an open wound can usually be controlled by pressing with the palm of one hand to compress of cloth over the entire area of the wound. A thick pad of sterile gauzes is preferable, but any soft clean cloth can be used in an emergency. Ever unclean material can be used, [...]
Loss of more than a quart of blood is a threat to a person’s survival. Hemorrhage from the aorta or from combined external and internal injuries may be so rapid and extensive that the victim dies almost immediately. The loss of blood in some other kinds of wounds such as the partial or complete severing [...]
If the wound is in an inconspicuous location, is not deep, and gapes slightly, the first-aider may find that he need only hold the wound edges together and dress and bandage the injury. At times, however, it may be difficult for the first-aider to decide whether a wound needs medical care. He may ask himself, [...]
A wound is a break in the continuity of a tissue of the body, either internal or external. Wounds are classified as open or closed. An open wound is a break in the skin or in a mucous membrane. A closed wound involves underlying tissues without a break in the skin or a mucous membrane.
Causes
Wounds [...]
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Hematocrit (HCT)
The word hematocrit means “to separate blood,” a procedure which is followed following the blood draw through the proper use of a centrifuge. Hematocrit is the measurement of the percentage of red blood cells in whole blood. It is an important determinant of anaemia (decreased), polycythemia (increased), dehydration (elevated), increased R.B.C. breakdown in the [...]
A burn is damage to the skin’s tissues, usually caused by excessive heat.
Burning
Heat is the most obvious cause of burn injuries. This can be direct contact with fires, radiators or hot liquids, but also the radiated heat from an extreme source of heat, such as a furnace or open fire. Burns can also be caused [...]
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DEFINITION:
- is an acute infectious disease caused by any of the three types of Poliomyelitis virus which affects chiefly the anterior horn cells of the Spinal cord and the medulla, cerebellum and midbrain.
- Characterized by two febrile episodes, a minor and major illness separated by a remission of one or two days followed by varying [...]
