Image Troussau s Sign of Latent Tetany.jpg thumb widthpx A hand being held similarly to Trousseau s sign. Trousseau sign of latent tetany is a medicalsign observed in patients with low calcium . ref Kumar, Abbas, Fausto. Pathologic Basis of Disease, 7th edition. Philadelphia Elsevier Saunders, 2005. 1188. ref This sign may become positive before other gross manifestations of hypocalcemia such as hyperreflexia and tetany , but is generally believed to be more sensitive 94 than the Chvostek sign 29 for hypocalcemia. ref Fonseca OA, Calverly JR. Neurologic manifestations of hypoparathyroidism. Arch Intern Med 1967 120 202. ref ref Schaat M, Payne CA. Effect of diphenylhydantoin and phenobarbital on latent tetany ref To elicit the sign, a blood pressure cuff is placed around the arm and inflated to a pressure greater than the systolic blood pressure and held in place for 3 minutes. This will occlude the brachial artery . In the absence of blood flow, the patient s hypocalcemia and subsequent neuromuscular irritability will induce spasm of the muscles of the hand and forearm. The wrist and metacarpophalangeal joint s flex, the distal interphalangeal joint DIP and proximal interphalangeal joint PIP joints extend, and the fingers adduction adduct . The sign is also known as main d accoucheur French language French for hand of the obstetrician because it supposedly resembles the position of an obstetrician s hand in delivering a baby. The sign is named after French physician Armand Trousseau who described the phenomenon in 1861. ref Trousseau a. Clinique m dicale de l H tel Dieu de Paris. Paris, 1861. Volume 2 112 114. ref It is distinct from the Trousseau sign of malignancy . References reflist Eponymous medical signs for endocrinology Category Symptoms and signs Endocrinology, nutrition, and metabolism med sign stub es Signo de Trousseau fr Signe de Trousseau de Trousseau Zeichen it Segno di tetania latente di Trousseau pl Objaw Trousseau klasyczny pt Sinal de Trousseau de ... more details
, may cause tetany. File Vatche tetaneye.jpg thumb Cow grazing on rapidly grown pasture with tetany of the neck suggesting Grass Tetany An excess of potassium in grass hay or pasture can trigger winter tetany, or grass tetany , in ruminant s. Diagnosis French Professor Armand Trousseau 1801 1867 devised the trick now known as the Trousseau sign of latent tetany of occluding the brachial artery by squeezing, to trigger cramps in the fingers. Also, tetany can be demonstrated by tapping anterior to the ear, at the emergence of the facial nerve. This is now known as the Chvostek sign . Tetany is characterized ...SignSymptom infobox Name Tetany Image Caption DiseasesDB 29143 ICD10 ICD10 R 29 0 r 25 ICD9 ICD9 781.7 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D013746 Tetany is a medicalsign consisting of the involuntary contraction of muscle s, which may be caused by disease or other conditions that increase the action potential frequency. Muscle cramps that are caused by the disease tetanus are not classified as tetany rather, they are due to a blocking of the inhibition to the neurons that supply muscles. Mechanism Low calcium levels in the bloodstream increase the permeability of neuronal ... muscles. ref name textbookofmedicalphysiology11thed cite book title Textbook of Medical Physiology last ... Philadelphia ref Causes The usual cause of tetany is lack of calcium . An excess of phosphate high phosphate to calcium ratio can also trigger the spasms. Milk and alkali tetany is an example of this imbalance. Underfunction of the parathyroid gland can lead to tetany. Low levels of carbon dioxide cause tetany by altering the albumin binding of calcium such that the ionized physiologically ... . Hypomagnesemia Low levels of magnesium can lead to tetany. Clostridium tetani toxin, via inhibition of glycine mediated and GABA ergic neurotransmission , may lead to tetany. Rebirthing ... grouped motor unit discharges at low discharge frequency during tetany episodes. References ... more details
Grass tetany or hypomagniesemic tetany is a metabolic disease of dairy cows grazing on lush pastures, of rapidly growing grass , especially in early spring season spring . File Vatche tetaneye.jpg thumb Cow grazing on rapidly grown pasture with tetany of the neck suggesting Grass Tetany The pathognomonic symptom is Tetanymedicalsigntetany seen in the neck of the recumbent cow. But, before this stage, the animal had a staggering gait. Hence, the common appellation of grass staggers . A similar disease can occur in sheep . Etiology The symptoms are caused by hypomagnesemia . Early spring grass is low in magnesium which can lead to deficiency because cows cannot store magnesium and rely on steady intake. Early spring grass is also high in ammonium which complexes with magnesium and phosphate in the intestine to form insoluble precipitates of struvite . This decreases the absorption of magnesium causing hypomagnesemia. Hypomagnesemia can lead to hypocalcemia low blood calcium levels , as in milk fever . Epidemiology In Northern Europe , the disease occurs after winter housing. But in Australia and New Zealand , where the cows are not housed, the disease occurs in similar conditions, when the animal enters lush, grass dominant pastures. ref cite book coauthors D.C. Blood, J.A. Henderson, O.M. Radostits title Veterinary Medicine publisher Bailli re Tindall location London edition 5th year 1979 isbn 0 7020 07 18 8 pages 841 847 Lactation Tetany ref Treatment The affected cow should be left in the pasture, and not forced to come back to stall because excitation can darken the prognosis, even after adequate treatment. ref cite book author Gustav Rosenberger title Krankheiten des Rindes publisher Verlag Paul Parey location Berlin edition 2nd year 1978 isbn 3 489 61716 9 pages 1024 1037 Weidetetanie ref Intravenous mixed calcium and magnesium injection are used. Subcutaneous injection of magnesium sulphate 200 ml of 50 solution is also recommended. ref Blood ... more details
Unreferenced date December 2009 Orphan date November 2006 Milk and alkali tetany is a form of tetanymedicalsigntetany cramps of the wrists and hands carpal spasm or legs Foot pedal spasm caused by an electrolyte imbalance. Sufferers from peptic ulcer s often take an alkali such as bicarbonate of soda to relieve the symptoms, and wash it down with milk . This causes the calcium of the milk to precipitate out, whilst the phosphate is digested. Treatment consists simply of discontinuing the habit. Category Electrolyte disturbances ... more details
A medicalsign is an Objectivity science objective ref http www.emedicine.com asp dictionary.asp?keyword sign eMedicine Stedman Medical Dictionary Lookup Bot generated title Clarify date February 2009 ... of Medical Thinking , argues that an essential feature of a sign is that there is both a sign ... eponymous signs. Symptoms and signs DEFAULTSORT MedicalSign Category Medical signs ast Signu ... of some medical fact or characteristic that may be detected by a physician during a physical examination ... provider, and are often significant in assisting a healthcare provider in medical diagnosis diagnosis of medical condition s responsible for the patient s symptom s. Examples include hypertension elevated blood pressure , a Nail clubbing clubbing of the fingers which may be a sign of lung disease, or many other things , and arcus senilis . The term sign is not to be confused with the term ... the study of sign communication in general in English. This term, then written semeiotics ... in 1670 by Henry Stubbes 1631&ndash 1676 , to denote the branch of medical science relating to the interpretation ... and Enquiries made... , London , 1670, p. 75 ref Eponymous signs main List of eponymous medical signs Historically, medical signs were Eponym named after the physician s who first described them. ref See list of eponymous medical signs , and Who Named It? http www.whonamedit.com azeponyms.cfm for more ... abnormal, relevant to a potential medical condition, but a symptom is experienced and reported by the patient, while a sign is discovered by the physician during examination or by a clinical ... King, Lester S. title Medical Thinking A Historical Preface publisher Princeton University Press location ... as any indication of a medical condition that can be objectively observed i.e., by someone other than ... that an asymptomatic patient is uninhibited by disease. However, a doctor may discover the sign hypertension in an asymptomatic patient, who does not experience dis ease , and the sign indicates a disease ... more details
distinguish2 drug testing for illegal use or abuse of opiates In medicine, the poppy seed test is a Medical diagnosis diagnostic test used before surgery to predict if surgery will find a colovesical fistula an abnormal direct pathway between the Colon anatomy colon and urinary bladder or other type of vesicointestinal fistula . The test is very simple. The patient eats some poppy seed s, then the patient s urine is collected in a cup. If a poppy seed is found in the urine, the patient has a colovesical or related fistula. ref cite book title Urology Board Review series Pearls of Wisdom author Stephen W. Leslie edition 3 publisher McGraw Hill Professional year 2009 isbn 0071605835 pages 521 url http books.google.com books?id bveKbQBqmOwC&pg PT522 ref The test is very accurate. In a series of 49 patients who underwent surgery for colovesical fistula due to Diverticulitis sigmoid diverticulitis , the poppy seed test gave a correct diagnosis more often than abdominopelvic computerized tomography, magnetic resonance tomography of the abdomen, cystogram, retrograde colonic enema, urethrocystoscopy, and colonoscopy. ref name pmid19616793 cite journal author Melchior S, Cudovic D, Jones J, Thomas C, Gillitzer R, Th roff J title Diagnosis and surgical management of colovesical fistulas due to sigmoid diverticulitis journal The Journal of Urology volume 182 issue 3 pages 978 82 year 2009 month September pmid 19616793 doi 10.1016 j.juro.2009.05.022 url issn ref In a series of 20 patients in the United States , the poppy seed test was significantly more accurate than computed tomography . ref name pmid18289575 cite journal author Kwon EO, Armenakas NA, Scharf SC, Panagopoulos G, Fracchia JA title The poppy seed test for colovesical fistula big bang, little bucks journal The Journal of Urology volume 179 issue 4 pages 1425 7 year 2008 month April pmid 18289575 doi 10.1016 j.juro.2007.11.085 .... ref name pmid18289575 The test was first described in the English language English medical literature ... more details
Trousseau sign is the name of two distinct phenomena observed in clinical medicine. Both are attributed to Armand Trousseau Trousseau sign of latent tetany Trousseau sign of malignancy disambig pl Objaw Trousseau pt Sinal de Trousseau ... more details
The Chvostek sign also Weiss sign is one of the sign medicine signs of tetanymedicalsigntetany seen in hypocalcemia . It refers to an abnormal reaction to the stimulation of the facial nerve . When the facial nerve is tapped at the angle of the jaw i.e. masseter muscle , the facial muscles on the same side of the face will contract momentarily typically a twitch of the nose or lips because of hypocalcemia i.e. from hypoparathyroidism, pseudohypoparathyroidism, hypovitaminosis D with resultant hyperexcitability of nerves. Though classically described in hypocalcemia , this sign may also be encountered in respiratory alkalosis , such as that seen in hyperventilation , which actually causes decreased serum Ca sup 2 sup with a normal calcium level due to a shift of Ca sup 2 sup from the blood to albumin which has become more negative in the alkalotic state. It was first described by Franti ek Chvostek , a Austrian Empire Czecho Austrian physician in 1876, and later independently by Nathan Weiss in 1883. The Trousseau sign of latent tetany is also often used to detect early tetany. Chvostek s sign may also be present in hypomagnesemia, frequently seen in alcoholics, persons with diarrhea, patients taking aminoglycosides or diuretics, because hypomagnesemia can cause hypocalcemia. Magnesium is a cofactor for Adenylate cyclase . The reaction that Adenylate Cyclase catalyzes is the conversion of ATP to 3 ,5 cyclic AMP. The 3 ,5 cyclic AMP cAMP is required for Parathyroid hormone activation. References Chvostek F. Beitrag zur Tetanie. Wien Med Press 1876 17 1201 3, 1225 7, 1253 8, 1313 16. Weiss N. Centralbl Gesammt Ther 1883 1 9. cite pmid 9717944 Goljan, EF. Rapid Review Pathology. Mosby, Elsevier, 2007 pp. 504. External links http www.whonamedit.com doctor.cfm 2586.html Franti ek Chvostek http www.whonamedit.com doctor.cfm 2585.html Nathan Weiss Eponymous medical signs for endocrinology Category Symptoms and signs Endocrinology, nutrition, and metabolism med sign stub ... more details
number representation Sign, in biology an indication of some living thing s presence Medicalsign ...Unreferenced date March 2008 distinguish sine Other uses selfref For how to sign your posts on Wikipedia talk pages, see Wikipedia Signatures . File Biohazard.svg thumb This biohazard sign is a completely conventional symbol with no inherent relationship to what it represents. A sign is a representation of an object that implies a connection between itself and its object. A natural sign bears a causal relation to its object for instance, thunder is a sign of storm. A conventional sign signifies by agreement ... for another thing, as a flag may be a symbol of a nation . File Door sign.JPG thumb Door sign The way a sign signifies is called semiosis which is a topic of semiotics and philosophy of language . How a sign is perceived depends upon what is intended or expressed in the semiotic relationship of Signification ... cause for instance, medical symptom s signify a disease , performing a bodily gesture ... of things There are things that are just things, not any sign at all There are things that are also ... Pedestrian crossing sign Thus there are things which may act as signs without any respect to the human ... and patterns of signification may have a decisive value. Types A sign can denote any of the following ... racially segregated beach. Sign, in astrology often used to mean the Sun signSign or signing, in communication communicating via hand gesture s, such as in sign language . Gang signal Sign, in Tracking ... . A sign, in common use, is an indication that a previously observed event is about to occur again Sign, in divination and religion an omen , an event or occurrence believed to foretell the future Sign, in ontology and spirituality a coincidence see synchronicity Sign linguistics a combination of a concept and a sound image described by Ferdinand de Saussure In mathematics , the sign mathematics sign of a number tells whether it is positive and negative numbers positive or negative . Also, the sign ... more details
The Sign can refer to An alternate name for the album Happy Nation , by the Swedish dance pop group Ace of Base The Sign song The Sign song , a 1993 hit from this album The Sign band , a rock group The Sign Northern Irish Boyband disambig it The Sign ... more details
distinguish Login This article is not an appropriate location to add random trivia about the sign on details for every broadcaster from around the world. If you have valid references for such information then you may consider adding it to the article on the individual station. Please do not recompile a list of such information here. Unref date May 2011 Sign on or startup is the term used to describe the beginning of operations for a radio station radio or television station , generally at the start of each day. It is the opposite to a sign off or closedown which generally takes place at the end of the day. Overview Sign ons, like sign offs, vary from country to country, from station to station, and from time to time, however most follow a similar general pattern. Many stations follow the reverse process to their sign off sequence at the close of the day. It is common for sign ons to be followed ... television breakfast show . While both sign ons and sign offs have become less common with the increasing ... sign on typically occurring between 5 00 am and 7 00 am. However, in some countries with more limited broadcast coverage, such as North Korea , sign on may be as late as 5 00 pm. A particular type of AM ... hours, and will therefore run a sign on sequence each day. Sign on sequence The sign on sequence ... be broadcast fifteen to twenty minutes before the actual sign on. A signal to turn on remote transmitter ..., such as the call sign , Transmitter power output transmitter power , broadcast translator translators ... , and on Religious broadcasting religious broadcasters . For example sign ons in Cambodia , Thailand ... channel , Amplitude modulation AM or Frequency modulation FM frequency , call sign , brand ing, and a clock ... clips featuring station programming or personalities. While most of these sign off steps are done ... TV Ark http www.tv signoffs.com TV Signoffs.com J. Alan Wall s site featuring sign offs and sign ... Up Blog A blog devoted to sign ons and sign offs from around the world DEFAULTSORT Sign On Category ... more details
Brudzinski s sign may refer to one of three medicalsign s, all of which may occur in meningism Brudzi ski cheek sign Brudzi ski neck sign Brudzi ski symphyseal sign disamb ... more details
The Comby sign is a medicalsign clinical sign of early measles in which thin, whitish patches are seen on the Gingiva gums and buccal mucosa due to desquamation of Epithelium epithelial cells . ref http www.mondofacto.com facts dictionary?Comby 27s sign Comby s sign at Mondofacto online medical dictionary ref The sign is named after Jules Comby . ref http medical dictionary.thefreedictionary.com Comby 27s sign Comby s sign at TheFreeDictionary.com ref References reflist med sign stub Category Medical signs Category Measles ... more details
Fox s sign is a medicalsign clinical sign in which Bruise bruising is seen over the inguinal ligament . It occurs in patients with Retroperitoneum retroperitoneal bleeding, usually due to acute pancreatitis acute haemorrhagic pancreatitis . The sign is named after George Henry Fox . External links WhoNamedIt synd 1975 Fox s sign med sign stub Category Medical signs ... more details
Magnan s sign is a medicalsign clinical sign in which people with Cocaine dependence cocaine addiction experience paraesthesia which feels like a constantly moving foreign body , such as fine sand or powder, under the skin. ref http www.mondofacto.com facts dictionary?Magnan 27s sign Magnan s sign at Mondofacto online medical dictionary ref The sign is named after Valentin Magnan . External links WhoNamedIt synd 762 Magnan s sign References reflist Category Medical signs med sign stub ... more details
M bius sign is a medicalsign clinical sign in which there is an inability to maintain Vergence convergence of the human eye eye s. It is found in patients with Graves disease . ref http medical dictionary.thefreedictionary.com M C3 B6bius 27 sign M bius sign at TheFreeDictionary.com ref The sign is named after Paul Julius M bius . References reflist Category Symptoms and signs Endocrinology, nutrition, and metabolism Category Endocrinology DEFAULTSORT Mobius sign med sign stub Eponymous medical signs for endocrinology ... more details
Claybrook sign is a medicalsign clinical sign in which heart sounds and Respiratory sounds breath sounds can be heard transmitted through the abdominal wall on auscultation . It occurs in patients with rupture of an abdominal viscus . ref http www.mondofacto.com facts dictionary?Claybrook 27s sign Claybrook s sign at Mondofacto online medical dictionary. ref The sign is named after Edwin Claybrook . References reflist med sign stub Category Medical signs ar ... more details
Larrey s sign is a medicalsign clinical sign in which patients with sacroiliitis experience pain in the sacroiliac area of the lower back on sitting down suddenly on a hard chair. The sign is named after Dominique Larrey . ref WhoNamedIt synd 3663 Larrey s sign ref ref D. J. Larrey. M moires de chirurgie militaire, et campagnes. 4 volumes. Paris 1812 1817. ref References reflist Eponymous medical signs for musculoskeletal system Category Medical signs Category Rheumatology med sign stub ... more details
Joffroy s sign is a medicalsign clinical sign in which there is a lack of wrinkling of the forehead when a patient looks up with the head bent forwards. It occurs in patients with exophthalmos in Graves disease . The sign is named after Alexis Joffroy . External links WhoNamedIt synd 1544 Joffroy s sign I med sign stub Category Symptoms and signs Endocrinology, nutrition, and metabolism ... more details
Hatchcock s sign is a medicalsign clinical sign in which upward pressure on the angle of the mandible causes pain due to parotitis in mumps , but no pain in adenitis . ref http cme.medscape.com viewarticle 556144 3 Assessing the Mouth and Throat on Medscape ref References reflist med sign stub Category Medical signs ... more details
Orphan date November 2006 Parrot s sign is the creation of pain with applied pressure to the retromandibular region of the head. It is an indicator of meningitis . References references Category Medical signs med sign stub ... more details
Auenbrugger s sign is a bulging of the epigastrium seen in cases of severe pericardial effusion . It is named after Joseph Leopold Auenbrugger . External links WhoNamedIt synd 284 Auenbrugger s sign med sign stub Category Medical signs Category Cardiology ... more details
In medicine, Piskacek s sign is an indication of pregnancy . This sign, however, may or may not be a concrete probability of pregnancy along with other signs of early pregnancy. Other signs of early pregnancy include Goodell s sign Goodell , Hegar s sign Hegar , McDonald s sign McDonald , von Braun Fernwald s sign von Braun Fernwald , and Chadwick s sign Chadwick . Specifically, Piskacek s sign consists noting a palpable lateral bulge or soft prominence one of the locations where the uterine tube meets the uterus . Piskacek s sign can be noted in the seventh to eight week of gestation. The sign is named after Ludwig Piska ek . Eponymous medical signs for urinary system, reproductive system, and obstetrics DEFAULTSORT Piskacek s Sign Category Gynaecology Category Medical signs human repro stub pl Objaw Pisk ka ... more details
Fothergill s sign is a medicalsign . If a mass in the abdominal wall does not cross midline and does not change with flexion of the rectus muscles, this is a positive sign for a rectus sheath hematoma . It is named for John Fothergill physician John Fothergill . ref WhoNamedIt synd 3770 ref External links reflist Eponymous medical signs for digestive system and general abdominal signs Category Medical signs med sign stub In rectus sheath haematoma, the haematoma produces a mass that does not cross the midline and remains palpable when the rectus muscle is tense. ... more details
Unreferenced date December 2006 A radiologic sign is an objective indication of some medical fact or quality that is detected by a physician during examination of a radiograph i.e. plain film, CT scan , MRI . Examples Football sign Hampton s hump Omental cake Pneumatosis intestinalis Rigler s sign Westermark sign Golden S sign Kerley lines Peribronchial cuffing See also Sign medicine Radiologic signs DEFAULTSORT Radiologic Sign Category Radiologic signs ... more details
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