Also Latent Heat Loss. The heat that is lost through the continuous, unnoticed water loss that occurs with vaporization accounting for 10% of basal heat production. Evaporation accounts for the greatest heat loss when body head increases.. Does not result in temperature increase of surrounding air.
diarrhoea
The estimated insensible loss of fluid over 24 hours period for an adult is 800 mls. This is water loss we are not aware of like when we breath moisture is exhaled from our lungs.
sensible fluid losses ar those the person is aware of such as through wound drainage, GI tract losses and urination. Insensible fluid losses may occur without the person's awareness. Insensible losses occur daily through the skin and lungs.
Insensible
Sensible water loss is the loss of water through processes that are perceptible, such as sweating or breathing. Insensible water loss, on the other hand, refers to the loss of water that is not easily noticeable, like through evaporation from the skin or via respiration in the form of water vapor.
(Insensible : imperceptible, or semi-conscious, or oblivious) "There was an insensible change in the air pressure inside the plane." "He was knocked insensible by the explosion." "The politician was insensible to any criticism."
She was so insensible to criticism that it didn't even faze her.
Insensible perspiration (losses from skin and lungs)
Insensible fluid loss , is not readily seen or felt fluid, excreted from the body. Insensible fluid loss consists of 1)vaporization from lungs ( exhaled watervapor) and 2) passive diffusion through skin ( also called perspiratio insensibilis = insensible perspiration ). All values below are for adult humans: Vaporization from lungs : average amount 300 ml. , will increase with hard physical work and in dry hot climate. Insensible perspiration : average amount 350 ml. . Other ways of fluid excretion, that are not insensible fluid loss : Urinary production ( of urine ) can be seen : average amount daily 1000 - 1500 ml - will increase if you are overhydrated - and decrease if you are dehydrated. Active sweating from sweat glands can be seen : average amount daily 150 ml. , will increase in case of physical hard work or high temperatures. Fluid lost to the fecal matter in the intestines : average amount daily : 150 ml. , but will increase in case of Diarrhea.
Insensible perspiration is a perspiration that evaporates before it is perceived as moisture on the skin.
Body water loss from the skin is known as insensible perspiration, while body water loss from the lungs is known as respiratory water loss. Both processes contribute to overall fluid loss and help regulate body temperature.