Spatterdock or yellow water lily Health Dictionary

Spatterdock Or Yellow Water Lily: From 1 Different Sources


Nuphar species

Description: This plant has leaves up to 60 centimeters long with a triangular notch at the base. The shape of the leaves is somewhat variable. The plant’s yellow flowers are 2.5 centimeter across and develop into bottle-shaped fruits. The fruits are green when ripe.

Habitat and Distribution: These plants grow throughout most of North America. They are found in quiet, fresh, shallow water (never deeper than 1.8 meters).

Edible Parts: All parts of the plant are edible. The fruits contain several dark brown seeds you can parch or roast and then grind into flour. The large rootstock contains starch. Dig it out of the mud, peel off the outside, and boil the flesh. Sometimes the rootstock contains large quantities of a very bitter compound. Boiling in several changes of water may remove the bitterness.
Health Source: Medicinal Plants
Author: Health Dictionary

Yellow Fever

An arboviral (flavivirus) disease, also a zoonosis, being essentially a disease of forest monkeys, which under certain conditions can be transmitted to humans. A vaccine is available.... yellow fever

Water Bed

A bed with a water-?lled mattress can help prevent bed sores (see ULCER – Decubitus ulcer) in patients con?ned to bed for more than a few days. Its ?exibility provides uniform support for the whole body. Air beds are now more often used: they are light and more comfortable and the modern version, called a ripple bed, has a little motor that ?lls and empties tubes in the mattress. The patient’s circulation is stimulated and pressure is regularly changed on susceptible parts of the body – elbows, buttocks and heels – thus reducing the likelihood of pressure sores developing, particularly in the elderly.... water bed

Lily

(English) Resembling the flower; one who is innocent and beautiful Leelee, Lil, Lili, Lilie, Lilla, Lilley, Lilli, Lillie, Lillika, Lillita, Lilly, Lilybel, Lilybell, Lilybella, Lilybelle, Lillah, Lilia, Lilch, Lilika, Lilike... lily

Lily Of The Valley

Mental Powers, Happiness... lily of the valley

Water Intoxication

A disorder resulting from excessive retention of water in the brain. Main symptoms are dizziness, headaches, confusion and nausea. In severe cases the patient may have ?ts (see SEIZURE) or lose consciousness. Several conditions can disturb the body’s water balance causing accumulation of water in the tissues. Heart or kidney failure, CIRRHOSIS of the liver and disorders of the ADRENAL GLANDS can all result in water retention. Other causes are stress as a result of surgery, when increased secretion of antidiuretic hormone (VASOPRESSIN) by the adrenal gland may occur. Treatment is of the underlying condition and the judicious use of DIURETICS, with careful monitoring of the body’s ELECTROLYTES.... water intoxication

Canna Lily

Canna indica

Description: The canna lily is a coarse perennial herb, 90 centimeters to 3 meters tall. The plant grows from a large, thick, underground rootstock that is edible. Its large leaves resemble those of the banana plant but are not so large. The flowers of wild canna lily are usually small, relatively inconspicuous, and brightly colored reds, oranges, or yellows.

Habitat and Distribution: As a wild plant, the canna lily is found in all tropical areas, especially in moist places along streams, springs, ditches, and the margins of woods. It may also be found in wet temperate, mountainous regions. It is easy to recognize because it is commonly cultivated in flower gardens in the United States.

Edible Parts: The large and much branched rootstocks are full of edible starch. The younger parts may be finely chopped and then boiled or pulverized into a meal. Mix in the young shoots of palm cabbage for flavoring.... canna lily

Hard Water

The term applied to water that contains a large amount of calcium and magnesium salts (lime salts). These form an insoluble curd with soap and thus interfere with the use of the water for washing. Hard water is especially found in districts where the soil is chalky. Temporary hardness, which is due mainly to the presence of bicarbonates of lime, can be remedied by boiling, when the lime is precipitated as carbonate of lime. Permanent hardness is not remedied by boiling, and is due to the presence of a large amount of sulphate of lime. It may be removed by the addition of sodium carbonate (washing soda) or by the Permutit process which involves the use of various combinations of silicate of alumina and soda. In the past, hard water was often blamed for many ills – without any convincing evidence. Epidemiologists suggest that drinking soft water may lead to a greater risk of heart disease.... hard water

Tea For Water Retention

Water retention or Edema is an affection which is more commonly found in the legs and hands due to gravity. Generally, water retention makes your organs grow bigger and decrease their action. The swelling may affect the entire body or just a part of it (lungs, kidney, hands and feet) within days or month- a relatively short amount of time. This affection is caused by flu, cold or by overexposing your body to very low temperatures. How a Tea for Water Retention Works A Tea for Water Retention’s main purpose is to eliminate the surplus of water and heal the affected areas. Traditional medicine has developed some very effective drug combinations during the past years, but alternative medicine fans think that herbal treatments remain the real deal and that there’s no reason to stress out your liver. Efficient Tea for Water Retention When choosing a Tea for Water Retention, you must keep in mind the fact that this must be both very effective (contains a large amount of active constituents) and safe (water retention is an affection which takes time to heal so you don’t want anything to interfere with your treatment). If you don’t know which teas to choose from, here’s a list to give you a hand: - Green Tea – contains the right amount of active ingredients capable to flush all water out of your system and calm the affected areas. Don’t take more than 2 cups per day and don’t take it at all if you are experiencing menstrual or menopausal symptoms in order to avoid stomach ulcerations. - Stinging Nettle Tea – this Tea for Water Retention is a natural purgative and diuretic which is generally used to treat prostate problems. However, this is not one of the safest teas, so may want to check with your doctor before starting an herbal treatment based on it. - Dandelion Tea – the decoction is made from this plant’s roots and it’s well known for its curative properties, which include constipation and urinary tract infections. The Dandelion Tea will help your body get rid of the unnecessary water and improve your general health. - Peppermint Tea – this is one Tea for Water Retention one hundred percent safe! You can also take it to treat ailments of the respiratory and digestive systems, such as cough, flu, colds, pleurisy, pulmonary edema, upset stomach and gastritis. If you’ve decided to give up coffee, peppermint tea is a great alternative! Tea for Water Retention Side Effects When taken properly, these teas are generally safe. However, don’t exceed the number of cups in order to avoid digestive tract problems, such as diarrhea (some of these teas have a powerful diuretic effect), ulcers, uterine contractions or vomiting. If you’ve been taking one of these teas for a while and you’ve noticed some unusual reactions, ask for medical help as soon as possible! Don’t take a Tea for Water Retention if you’re pregnant, breastfeeding, on blood thinners, anti-coagulants or preparing for a surgery. Due to their purgative action, some of these teas can lead to miscarriage. If you have your doctor’s approval and there’s nothing that could interfere with your treatment, choose a tea that fits you best and enjoy its wonderful benefits!... tea for water retention

Water Chestnut

Trapa natans

Description: The water chestnut is an aquatic plant that roots in the mud and has finely divided leaves that grow underwater. Its floating leaves are much larger and coarsely toothed. The fruits, borne underwater, have four sharp spines on them.

Habitat and Distribution: The water chestnut is a freshwater plant only. It is a native of Asia but has spread to many parts of the world in both temperate and tropical areas.

Edible Parts: The fruits are edible raw and cooked. The seeds are also a source of food.... water chestnut

Water Plantain

Alisma plantago-aquatica

Description: This plant has small, white flowers and heart-shaped leaves with pointed tips. The leaves are clustered at the base of the plant.

Habitat and Distribution: Look for this plant in fresh water and in wet, full sun areas in Temperate and Tropical Zones.

Edible Parts: The rootstocks are a good source of starch. Boil or soak them in water to remove the bitter taste.

CAUTION

To avoid parasites, always cook aquatic plants.... water plantain

Glory Lily

Gloriosa superba

Liliaceae

San: Langali, Visalya, Agnishika,Shakrapushpi, Garbhaghatini

Hin: Kalihari

Mal: Menthonni

Tam: Akkinichilam

Pan: Kariari

Guj: Dudhiya vachnag

Kan: Nangulika Mar: Nagakaria

Ben: Bishalanguli Ori: Dangogahana

Tel: Adavinabhi

Importance: Glory lily is a glabrous herbaceous climber which yields different types of troplone alkaloids of medicinal importance. The major alkaloids are colchicine , 3-demethyl colchicine and colchicoside. There is another alkaloid gloriosine which promises to be even more effective than colchicine in plant breeding for inducing polyploidy. The genus has importance in the ornamental horticulture due to its bright flowers and wiry climbing stem.

The roots and rhizomes are used in traditional system of medicine. Its abortifacient and antipyretic properties have been mentioned in ancient classics “Charaka”. The name Garbhaghatini is due to this abortifacient activity. They are useful in the treatment of inflammations, ulcers, scrofula, hemorrhoids, pruritus, dyspepsia, helminthiasis, flatulence, intermittent fevers and debility. The root is given internally as an effective antidote against cobra poison. A paste of the root is also used as an anodyne; applications in bites of poisonous insects, snake bites, scorpion sting, parasitic skin diseases and leprosy (Nadkarni,1954; Chaudhuri and Thakur; 1994).

Distribution: The plant is distributed throughout tropical India upto an altitude of 2500m and in Andaman islands. It is also cultivated in tropical and South Africa, Madagaskar, Indonesia and Malasia. It is reported to be cultivated in some parts of Europe. In India it was cultivated in RRL, Jammu in 1960s. Recently it was taken up by Indian Council of Agricultural Research(ICAR). Cultivation of the plant is mostly confined to the Southern states of India besides its collection from wild sources.

Botany: Gloriosa superba Linn. belongs to Liliaceae family. It is a glabrous climbing herb with tuberous root stock grows over hedges and small trees. Stem is 6m long which grows to a height of 1.2-1.5m before the stem branches. Leaves are simple, alternate or whorled, sessile, ovate-lanceolate, 17x4.5cm, tip elongating into a spirally coiled tendril, base cordate and margin entire. Flowers are large in terminal racemes; perianth segments 6, linear, flexuosus and deflexed, basal half bright yellow, upper half red; stamens 6; ovary glabrous, 3-celled. Fruits are capsules, linear-oblong, upto 6.8cm long, 3 equal lobes, one or two lobes shorter in malformed fruits; green dried to pale and then black colour, dehisced into three sections. Seeds are oval in shape, testa spongy, embryo cylindric, 30-150 seeds per capsule, pale orange attached to the sutures. Tubers are cylindric, large, simple, ‘V’ shaped with the two limps equal or unequal in lenth pointed towards end brownish externally and yellowish internally. (Narain, 1977)

Agrotechnology: This is a rainy season plant and sprouts well in warm, humid and tropical conditions. It should be grown in sun as the plants in shade become weedy and thin and move towards light. G. superba is a shallow rooted plant and grows well in a variety of soils either clay or sand through out India. It grows well in a light porous soil with good drainage. For vigorous growth, greater blooms and strong tuber, a mixture of soil, sand and compost manure is recommended. The propagation is mainly by tubers, by division of rhizomes. Seeds remain dormant for 6-9 months and due to hard seed coat, about 20-30 days are required for germination and seeds may take 3-4 years before it matures to flower. Treatment of seeds by gibberellin(1-3 ppm) resulted in higher yield of colchicine in the plant and higher production of tubers. In tissue culture, young sprouts are cultured on Murashige and Skoog’s medium (Msb) supplemented with kinetin (1-4 mg/l). Direct regeneration of the explants are obtained.

The seeds and rhizomes are sown usually in the last week of June to mid July. The rhizomes are planted by splitting carefully into two from their ‘V’ shaped joints (two buds being at the extreme end of each rhizome) in lines 20cm apart at a distance of 20cm (while seeds are sown in lines at a distance of 4-6cm apart). They are watered regularly when the plants are growing. After green shoots appear 2-3 showers are weekly. The irradiation of the plant at 42% natural sunlight intensity increased the production of tuber and colchicine. They usually takes 6-10 weeks to flower after sprouting and then set on fruits. The fruits ripen at the end of October and after that aerial shoot eventually dies, leaving the fleshy tubers underground. The tubers are dug out with great care. An individual plant produces 50g tubers on an average. The average yield is approximately 4000-5000kg of rhizomes and 1000 kg of seed per hectare. The content of colchicine is usually 0.358% and 1.013% in tubers and seeds, respectively.

Post harvest technology: Lixivation of the material is done with 70% ethyl alcohol. Concentrated under vacuum to one third of its volume and extracted with chloroform for colchicine and related substances-concentration of the aqueous phase to syrup which is extracted 6-8 times with a mixture of CHCl3 - alcohol (4:1) to yield colchicoside.

Properties and activity: The flowers, leaves and tubers contain colchicine, superbin, N-formyl deacetyl colchicine, demethyl colochicine and lumicolchicine. Tubers also contain gloriosine. Leaves in addition, contain chelidonic acid, 2-hydroxy 6-methoxy benzoic acid and -sitosterol glucoside. Colchicine, demethyl colchicine and colchicoside have been reported from seeds. Rhizome is oxytocic, anticancerous, antimalarial, stomachic, purgative, cholagogue, anthelmintic, alterative, febrifuge and antileprotic. Leaf is antiasthmatic and antiinflammatory. Root shows antigonorrhoeic and antibiotic activity. This plant has poisonous effect to enviroment and livestock. The toxic properties are due to presence of alkaloids chiefly colchicine (Clewer et al, 1915).... glory lily

Rice-water

A useful diluent drink for invalids, similar to barley-water.... rice-water

Water-hammer Pulse

The peculiarly sudden PULSE that is associated with incompetence of the AORTIC VALVE of the heart.... water-hammer pulse

Yellow Evening Primrose

Hunting... yellow evening primrose

Water Dock

Rumex aquaticus. N.O. Polygonaceae.

Synonym: Bloodwort, Red Dock.

Habitat: In, or very near, waterways, lakes, ponds, ditches, and in marshes and swampy places.

Features ? The largest of all the Docks, reaching up to six or seven feet. Stem erect, thick, striated, hollow, branched. Leaves very large, some two feet in length, pale green turning to reddish-brown, broad and sharp-pointed, point turning over towards the water. Flowers (July and August) small, greenish-yellow, with white threads which become brown. Root large, reddish brown, porous bark, large pith with honeycomb-like cells.

Part used ? Root.

Action: Alterative, detergent.

Of value in skin diseases and sluggish liver, in which latter case it should be given in combination with a mild laxative. The dose is 3-4 tablespoonfuls of the decoction of 1 ounce to 1 pint after simmering from

1 1/2 pints. This may be used as a mouthwash for ulcers, etc., and the powder makes a first-rate medicinal cleanser for the teeth.

Hool highly esteems Water Dock, and says ? "It operates kindly and without excitement, being slow but sure in promoting a healthy action of the depurative functions of the system." He also claims diuretic and tonic qualities for the root.... water dock

Water Lettuce

Ceratopteris species

Description: The leaves of water lettuce are much like lettuce and are very tender and succulent. One of the easiest ways of distinguishing water lettuce is by the little plantlets that grow from the margins of the leaves. These little plantlets grow in the shape of a rosette. Water lettuce plants often cover large areas in the regions where they are found.

Habitat and Distribution: Found in the tropics throughout the Old World in both Africa and Asia. Another kind is found in the New World tropics from Florida to South America. Water lettuce grows only in very wet places and often as a floating water plant. Look for water lettuce in still lakes, ponds, and the backwaters of rivers.

Edible Parts: Eat the fresh leaves like lettuce. Be careful not to dip the leaves in the contaminated water in which they are growing. Eat only the leaves that are well out of the water.

CAUTION

This plant has carcinogenic properties and should only be used as a last resort.... water lettuce

Water Lily

Nymphaea odorata

Description: These plants have large, triangular leaves that float on the water’s surface, large, fragrant flowers that are usually white, or red, and thick, fleshy rhizomes that grow in the mud.

Habitat and Distribution: Water lilies are found throughout much of the temperate and subtropical regions.

Edible Parts: The flowers, seeds, and rhizomes are edible raw or cooked. To prepare rhizomes for eating, peel off the corky rind. Eat raw, or slice thinly, allow to dry, and then grind into flour. Dry, parch, and grind the seeds into flour.

Other Uses: Use the liquid resulting from boiling the thickened root in water as a medicine for diarrhea and as a gargle for sore throats.... water lily

Yellow Fever Vaccine Is Prepared From

chick embryos injected with the living, attenuated strain (17D) of pantropic virus. Only one injection is required, and immunity persists for many years. Re-inoculation, however, is desirable every ten years. (See YELLOW FEVER.)

Haemophilus vaccine (HiB) This vaccine was introduced in the UK in 1994 to deal with the annual incidence of about 1,500 cases and 100 deaths from haemophilus MENINGITIS, SEPTICAEMIA and EPIGLOTTITIS, mostly in pre-school children. It has been remarkably successful when given as part of the primary vaccination programme at two, three and four months of age – reducing the incidence by over 95 per cent. A few cases still occur, either due to other subgroups of the organism for which the vaccine is not designed, or because of inadequate response by the child, possibly related to interference from the newer forms of pertussis vaccine (see above) given at the same time.

Meningococcal C vaccine Used in the UK from 1998, this has dramatically reduced the incidence of meningitis and septicaemia due to this organism. Used as part of the primary programme in early infancy, it does not protect against other types of meningococci.

Varicella vaccine This vaccine, used to protect against varicella (CHICKENPOX) is used in a number of countries including the United States and Japan. It has not been introduced into the UK, largely because of concerns that use in infancy would result in an upsurge in cases in adult life, when the disease may be more severe.

Pneumococcal vaccine The pneumococcus is responsible for severe and sometimes fatal childhood diseases including meningitis and septicaemia, as well as PNEUMONIA and other respiratory infections. Vaccines are available but do not protect against all strains and are reserved for special situations – such as for patients without a SPLEEN or those who are immunode?cient.... yellow fever vaccine is prepared from

Liver – Acute Yellow Atrophy

Necrosis. Fatal disease in which the substance of the liver is destroyed. Incidence is rare since the public has been alerted to the dangers of certain chemical toxins, fumes from synthetic glues, solvents, and poisonous fungi.

Symptoms: jaundice, delirium and convulsions.

As it is the work of the liver to neutralise incoming poisons it may suffer unfair wear and tear, alcohol and caffeine being common offenders.

Treatment for relief of symptoms only: same as for abscess of the liver.

Treatment by or in liaison with a general medical practitioner. ... liver – acute yellow atrophy

Brash, Water

See waterbrash.... brash, water

Water On The Brain

A nonmedical term for hydrocephalus.... water on the brain

Yellow Dock Tea Benefits

Yellow Dock Tea has been world-wide known as a great alternative remedy in cases of liver and blood affections. Yellow Dock is a perennial plant that can be found almost anywhere in the world, but which is original from Northern America. Although its name is Yellow Dock, the herb has a reddish-brown color with boiled and eaten leaves. The roots are the most important part of this plant since they are used for medical purposes mainly. The leaves can also be used as a treatment, but they are not very efficient, even if the pharmaceutical companies have been using them for a long while in order to produce face cleansers and anti-aging tonics. Yellow Dock Tea Properties The main property of Yellow Dock Tea is that it can be used as a treatment on its own as well as an adjuvant to other treatments, depending on the concentration and the doctor’s advice. The active ingredients of this tea are: emodin, magnesium, silicon, tannins and oxalic acid, which can only be found in the roots. Yellow Dock tea is a powerful stimulant and it has laxative properties, so it’s best not to use it in case you’re already suffering from diarrhea. Yellow Dock Tea Benefits Yellow Dock Tea is an important alternative medicine ingredient, thanks to its active substances, which are very versatile and can be used in treatments concerning many affected areas. Some say that Yellow Dock could easily be added as an adjuvant to absolutely any kind of medical treatment, in adequate quantities, of course. If you’ve already tried it, you probably know that Yellow Dock Tea is very useful in case you’re suffering from one of the following conditions: - Digestive problems, such as deficient bowel movement, gastritis, enteritis. Yellow Dock tea can release the enzymes that your body needs in order to recover from these affections. - Poor body detoxification, by helping the urinary and digestive systems to release endorphins. - Heavy-metal poisoning or poor liver function, by increasing the liver cells and reconstruction the damaged tissue. How to make Yellow Dock Tea Infusion Preparing Yellow Dock Tea Infusion is very easy. Use a teaspoon of Yellow Dock roots for every 2 cups of tea you want to make, add boiling water and wait 10 minutes for the wonderful benefits to be released. Drink it hot or cold, adding ginger, honey or lemon, if the taste seems a bit unpleasant to you. However, don’t drink more than a cup per day and only for a short while (1 to 3 weeks). Yellow Dock Tea Side Effects If you’re using freshly-picked leaves, use them with moderation. When taken properly, Yellow Dock Tea is safe. However, high dosages may cause a number of problems, such as upset stomach, internal bleedings and nausea. If you’ve been taking it for a while and you’re experiencing some unusual episodes, talk to a doctor immediately! Yellow Dock Tea Contraindications Don’t take Yellow Dock Tea if you’re pregnant or breastfeeding. Also, children and patients suffering from diarrhea and some serious diseases which imply the ingestion of blood thinners or anti-coagulants should avoid taking it at all costs! To gather more information, talk to a specialist. Once you are well-informed, give Yellow Dock Tea a try and enjoy its wonderful benefits responsibly!... yellow dock tea benefits

Lily Of The Valley

May Lily. Convallaria majalis L. German: Lilienkonvallen. French: Muguet. Spanish: Lirio de los valles. Italian: Mughetto. Keynote: heart. Part used: dried leaves. The herbalist’s “digitalis”. Practitioner use only. In official use in Russia for heart conditions where it is used in place of digitalis, but at a low dosage. Similar action on the heart as digitalis. (Martindale 27th edn., p.489) Specific action on heart muscle alone.

Constituents: cardioactive glycosides, flavonoid glycosides.

Action: increases force of the heart, regularises the beat for distension of the ventricles. Restores an irritable heart. Increases size and strength of the pulse; slows down a rapid feeble pulse; restores regular deep breathing. Is a secondary diuretic which eliminates fluid retained in the tissues (oedema), leaving no depression or depletion of potassium. Cardiac stimulant. Mild gastric tonic.

Uses: Left ventricular failure, mitral insufficiency, sense that “the chest is held in a vice”. Congestive heart failure, endocarditis, cardiac dropsy with swollen ankles, cardiac asthma, renal hypertension. Effective in painful and silent ischaemic episodes. Bradycardia.

Combines well with Motherwort and Selenicereus grandiflorus for heart disease BHP (1983). With Echinacea and Poke root for endocarditis. Never combine with Gotu Kola. (Dr John Heinerman, Texas, USA)

Preparations: Maximum dose: 150mg dried leaf. Thrice daily.

Tea: 1 teaspoon shredded leaves to each cup water gently simmered 10 minutes. One-third of a cup. Liquid Extract BPC 1934: dose: 0.3-0.6ml (5 to 10 drops).

Tincture BHP (1983): 1:5 in 40 per cent alcohol; dose – 0.5 to 1ml (8 to 15 drops).

Juice. Fresh leaves passed through a juicer. 3-5 drops thrice daily.

Contra-indicated in high blood pressure. Sale: Pharmacy Only. ... lily of the valley

Water On The Knee

A popular term for accumulation of fluid within or around the knee joint. The most common cause is bursitis. (See also effusion, joint).... water on the knee

Water Retention

Accumulation of fluid in body tissues (see oedema).... water retention

Water Tablets

A nonmedical term for diuretic drugs.... water tablets

Yellow Spot

see macula.... yellow spot

Water

A simple compound that is essential for all life. Its molecular structure is H2O (2 atoms of hydrogen bonded to 1 of oxygen). Water is the most common substance in the body, accounting for about 99 per cent of all molecules, but a smaller percentage of total body weight. Approximately 2 thirds of the body’s water content is contained within the body cells, and the remaining third is extracellular (found, for example, in the blood plasma, lymph, and cerebrospinal and tissue fluid).

Water provides the medium in which all metabolic reactions take place (see metabolism), and transports substances around the body. The blood plasma carries water to all body tissues, and excess water from tissues for elimination via the liver, kidneys, lungs, and skin. The passage of water in the tissue fluid into and out of cells takes place by osmosis.

Water is taken into the body in food and drink and is lost in urine and faeces, as exhaled water vapour, and by sweating (see dehydration). The amount of water excreted in urine is regulated by the kidneys (see also ADH). Extra water is needed to excrete excess amounts of substances, such as sugar or salt, in the blood, and high water intake is essential in hot climates where a large amount of water is lost in sweat.

In some disorders, such as kidney failure or heart failure, insufficient water is excreted in the urine, resulting in oedema.... water

Water-borne Infection

A disease caused by infective or parasitic organisms transmitted via water. Infections can be contracted if infected water is drunk, if it contaminates food, or if individuals swim or wade in it. Worldwide, contamination of drinking water is an important mode of transmission for various diseases including hepatitis A, many viral and bacterial causes of diarrhoea, typhoid fever, cholera, amoebiasis, and some types of worm infestation.

Swimming in polluted water should be avoided because, if swallowed, there is a risk of contracting disease. In addition, a form of leptospirosis is caused by contact with water contaminated by rat’s urine. In tropical countries, there is also a risk of contracting schistosomiasis (bilharzia), which is a serious disease caused by a fluke that can burrow through the swimmer’s skin.... water-borne infection

Water-deprivation Test

a test for *diabetes insipidus in which fluid and food intake is withheld completely for up to 24 hours, with regular measurement of plasma and urinary *osmolality and body weight. Normally (and in a person with psychogenic *polydipsia) the output of *vasopressin will be increased in order to concentrate the urine as the plasma osmolality rises; correspondingly, the urine osmolality also rises and its volume diminishes. In a patient with diabetes insipidus, however, the urine osmolality will remain low and of high volume while the patient steadily dehydrates. The test must be abandoned if the patient loses 3% of body weight.... water-deprivation test



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