Dehydration in children results from any combination of insufficient fluid intake and excessive fluid losses. Cellular dehydration promotes the toxicity of drugs with an intracellular distribution. If its not treated, it can get worse and become a serious problem. Dehydration article about dehydration by the free dictionary.
There are a number of other causes of dehydration including heat exposure, prolonged vigorous exercise, kidney disease, and medications that cause voiding diuretics. Dehydration, overhydration, and salt and water overload have been associated with morbidity and mortality, with older adults being at increased risk. Clinical professor of pediatrics, university of california at san francisco and stanford university school of medicine, san francisco, ca after completing this article, readers should be able to. Nevertheless, the hot air for drying is also amply applied to fruits such as. Body temperature regulation digestion metabolic processes respiration lubrication of joints nutrient distribution facts you should know. Dehydration is a physiologic disturbance caused by the reduction or translocation of body fluids, leading to hypovolemia. Dehydration is when the body becomes dry due to loss of water because of diarrhoea. Dehydration means your body loses more fluids than you take in. In the latter condition, water and electrolytes are lost in the same proportion as they exist in normal body fluids. In dehydration, water is the primary deficiency, resulting in increased levels of electrolytes or hypertonicity. Markers of hydration status european journal of clinical nutrition. Dehydration is further defined as a rapid loss of at least 3% of body weight that is associated with water and electrolyte disturbances. Sep 30, 2019 dehydration countable and uncountable, plural dehydrations the act or process of removing water from something. Dehydration strictly means lack of water but has come to be used more colloquially to mean salt and water depletion and, even more loosely, to mean a deficit in body fluid of any kind.
Using dehydration to preserve fruits, vegetables, and meats. Euhydration is the state or situation of being in water balance. Acute and chronic effects of hydration status on health. Hypertonic dehydration occurs when there is a greater loss of water when compared to sodium loss. In this task, subjects were asked to stay at rest for 4 min defined. Definition dehydration occurs when your body does not have as much water and fluids as it needs. It can be prevented by consuming filtered and boiled water, having a balanced diet, maintaining personal hygiene and taking proper medical treatment. Dehydration should not be confused with fluid volume deficit. Proper hydration the importance of proper hydration. We become dehydrated if our bodies do not have enough water. In particular, hypertonicity implies intracellular volume contraction. Acute dehydration may lead to mental disorders, collapse, and sometimes death. Dehydration definition of dehydration by merriamwebster.
Dehydration is a condition that results when the body loses more water than it takes. Occurs when the bodys output is greater than intake. Many fruits have been for long dried in the sun, including grapes, figs, dates, pears, peaches and apricots fig. If you dont replace lost fluids, you will get dehydrated. Diagnosis and management of dehydration in children. Mild dehydration identification using machine learning to. It lubricates the joints and eyes, aids digestion, flushes out. Worldwide, dehydration due to diarrhea is the leading cause of infant and child mortality. Dehydration definition dehydration is the loss of water and salts essential for normal body function. The process of removing water from a substance or compound. The condition in which water in the body drops below normal levels, usually caused by illness, sweating or by not drinking enough. Water of dehydration definition is water of hydration set free by chemical changes. Signs and symptoms of dehydration in the elderly 745 ous body regulatory mechanisms, which stabilize the tbw in a healthy person within 0.
Dehydrate definition in the cambridge english dictionary. Water of dehydration definition of water of dehydration by. Compact equipment suitable for home use is also available. Dehydration definition, the act or process of dehydrating. Depletion of extracellular fluid ecf volume is termed hypovolemia.
Dehydration meaning in the cambridge english dictionary. Dehydration definition of dehydration by the free dictionary. This type of dehydration is more common in the presence of infection or exposure to hot environmental temperatures. Dehydration medical definition, flashcards and icd10 codes. Babies, children and the elderly are more at risk of dehydration.
Chronic cellular dehydration in the aged patient the. Diarrhea is a frequent cause of dehydration in children. Condensation reaction the historically established name in organic chemistry for a large group of reactions that form complex compounds from two or more. Dehydration develops considerably more rapidly in children than in adults, since in children, especially infants, the amount of water excreted through the kidneys, skin, and lungs per unit of body surface is far greater than in adults. Although often used interchangeably, dehydration and volume depletion are not synonyms. All our information sheets and booklets are available to download from our. Jul 01, 2015 dehydration is one of the leading causes of pediatric morbidity and mortality throughout the world. The elderly and those with chronic illnesses are at higher risk. Public knowledge of dehydration and fluid intake practices. Dehydration definition of dehydration by medical dictionary. Pdf clinical medicine defines dehydration using blood markers that. Diarrheal disease and dehydration account for 14% to 30% of worldwide deaths among infants and toddlers. This can result in numerous minor and major effects within the body and can be deadly. Description dehydration occurs when the body loses more fluid than it takes in.
Dehydration occurs when you use or lose more fluid than you take in, and your body doesnt have enough water and other fluids to carry out its normal functions. This is because patients with diarrhoea eat less and their ability to absorb nutrients is reduced. Dehydration is classified as mild, moderate, or severe based on how much of the bodys fluid is lost or not replenished. Water makes up over twothirds of the healthy human body. Dysentery, persistent diarrhoea, and diarrhoea associated with other illnesses 79 7. Body fluid distribution the body contains 2 major fluid compartments. When the body has less water than it needs to function optimally. Dehydrate definition and meaning collins english dictionary. Some people lose their sense of thirst as they age, so they dont drink enough fluids. In order to induce cognitive stress, subjects performed the stroop task every visit.
When severe, dehydration is a lifethreatening emergency. A decrease of 2% or more can result in physical, visual, or cognitive changes. Dehydration is condition caused by the loss of too much fluid from the body. It happens when you are losing more fluids than you are taking in, and your body does not have enough fluids to work properly. Dehydration equipment varies in form with different food products and includes tunnel driers, kiln driers, cabinet driers, vacuum driers, and other forms. Water carries nutrients and oxygen to all cells in the body. It occurs when free water loss exceeds free water intake, usually due to exercise, disease, or high environmental temperature. Hunger, dehydration, drip definition, examples, diagrams.
Diagnosis and management of dehydration in children amy canavan, md, virginia commonwealth university school of medicine, falls church, virginia billy s. List the conditions under which dehydration can occur. Using dehydration to preserve fruits, vegetables, and meats renee boyer, professor and extension specialist, virginia tech karleigh huff, graduate student, virginia tech introduction. Information and translations of dehydration in the most comprehensive dictionary definitions resource on the web. Dehydration in infancy and childhood american academy of. Dehydration occurs when your body loses more fluid than you take in. In physiology, dehydration is a deficit of total body water, with an accompanying disruption of metabolic processes. Understanding clinical dehydration and its treatment. Dehydration splitting off of water from organic or inorganic compounds. Clearing purpose of clearing, reagents for clearing and. Pdf dehydration in clinical practice, as opposed to a physiological definition, refers to the loss of body water, with or without salt, at a rate.
Symptoms of dehydration in adults and children include. Dehydration definition is the process of dehydrating. Mild dehydration can also be caused by immersion diuresis, which may increase risk of decompression sickness in divers. Diseases of the gastrointestinal tract that cause vomiting or diarrhea may lead to dehydration. Pdf understanding clinical dehydration and its treatment. Although the term dehydration is often used to describe simple volume depletion of extracellular fluid, true dehydration is distinguished by hypertonicity that is the result of water loss. A basic aim of design is to shorten the drying time, which helps retain the basic character of the food product. Symptoms may include headaches similar to what is experienced during a hangover, decreased blood pressure hypotension, and dizziness or fainting when standing up. Each of the 1014 cells of the body precisely regulates its own volume by controlling water exchange with the surrounding extracellular fluid.
Dehydration meaning and example sentences with dehydration. Wed like to understand how you use our websites in order to improve them. Dehydrationdehydration essential to body function and health. When something such as food is dehydrated, all the water is removed from it, often in. Hypovolemia is specifically a decrease in volume of blood plasma. Other important causes of death are dysentery, malnutrition and serious infections, such as pneumonia. Dehydration is one of the leading causes of pediatric morbidity and mortality throughout the world.
Dehydration is the most common fluid and electrolyte disorder in all elderly adults popula. Dehydration is a condition where the water levels in the body are too low. Top definition is dryness resulting from the removal of water. Dehydration refers to loss of totalbody water, producing hypertonicity, which now is the preferred term in lieu of dehydration, whereas volume depletion refers to a deficit in extracellular fluid volume. In physiology, dehydration is a deficit of total body water, with an accompanying disruption of. When the normal water content of your body is reduced, it upsets the balance of minerals salts and sugar in your body, which affects the way it functions. Hydration at the cellular level is an important factor in health and disease and is a key metabolic signal because overhydration can trigger anabolism, and cell shrinkage leads to catabolism. Dehydration is categorized by the relationship between free water and sodium and can be caused by many factors. It is unfortunate that such loose terminology leads to loose thinking, imprecise. Drying dehydrating food is one of the oldest and easiest methods of food preservation. Water of dehydration definition of water of dehydration. We argue that the clinical definition for dehydration, ie, loss of total body water, addresses. It mean volume depletion and occurs when fluid loss from the extracellular space at a rate that exceeds intake. Definition of diarrhea diarrhea is the passage of loose or watery stools at least 3 times in a 24hour period.
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