A type of psychological test that assesses a person's thinking patterns, observational ability, feelings, and attitudes on the basis of responses to ambiguous test materials. It is not intended to diagnose psychiatric disorders. Mentioned in: Thematic Apperception Test.
Types of Edema. Edema is the accumulation of abnormal levels of fluid in the circulatory system and the tissues between the bodyâs cells (interstitial tissue). This condition often causes tissue underneath the skin to swell, and is common when lymphatic blockage occurs.his excess fluid gets trapped in the bodyâs tissue in a greater capacity than the lymphatic system can eliminate. Generally, edema is physically unnoticeable until the interstitial fluid volume is approximately 30% above normal (normal fluid volume is 10%).
Edema is observable swelling from fluid accumulation in body tissues. Edema most commonly occurs in the feet and legs, where it is referred to as peripheral edema. The swelling is the result of the accumulation of excess fluid under the skin in the spaces within the tissues.All tissues of the body are made up of cells and connective tissues that hold the cells together. The edema that occurs in diseases of the heart, liver, and kidneys is mainly caused by salt retention, which holds the excess fluid in the body. 2  In certain liver and kidney diseases, low levels of albumin in the blood can contribute to fluid retention.