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What is the difference true mach number and indicated mach?
Indicated Mach number which is corrected for instrument and position errors equals True Mach Number Instrument errors are errors due to manufacturing or design defects that all instruments have to some small degree. Position error is due to the position of the pitot and static ports on the aircraft getting disturbed air pressure from some part of the aircraft's structure.
Tricuspid regurgitation?
DefinitionTricuspid regurgitation is a disorder in which the heart's tricuspid valve does not close properly, causing blood to flow backward (leak) into the right upper heart chamber (atrium) when the right lower heart chamber (ventricle) contracts.Alternative NamesTricuspid insufficiencyCauses, incidence, and risk factorsThe tricuspid valve separates the right lower heart chamber (the right ventricle) from the right upper heart chamber (right atrium).The most common cause of tricuspid regurgitation is swelling of the right ventricle. Such swelling may be a complication of any disorder that causes failure of the right ventricle.Tricuspid regurgitation may also be caused by or made worse by valve disease on the left side of the heart such as mitral regugitation and mitral stenosis.Other diseases can directly affect the tricuspid valve. The most common of these is rheumatic fever, which is a complication of untreated strep throat infections.Tricuspid regurgitation may be found in those with a type of congenital heart disease called Ebstein's anomaly.Other infrequent causes of tricuspid regurgitation include:Carcinoid tumors, which release a hormone that damages the valveMarfan syndromeInjuryRheumatoid arthritisRadiation therapyAnother important risk factor for tricuspid regurgitation is use of the diet medications called "Fen-Phen" (phentermine and fenfluramine) or dexfenfluramine.SymptomsTricuspid regurgitation may not cause any symptoms if the patient does not have pulmonary hypertension. If pulmonary hypertension and moderate to severe tricuspid regurgitation exist together, the following symptoms may result:Active pulsing in the neck veinsDecreased urine outputFatigue, tirednessGeneral swellingSwelling of the abdomenSwelling of the feet and anklesWeaknessSigns and testsThe health care provider may detect abnormalities when when gently pressing with the hand (palpating) on your chest. The doctor may also feel a pulse over your liver. The physical exam may reveal liver and spleen swelling.Listening to the heart with a stethoscope shows a murmur or abnormal sounds.There may be signs of fluid collection in the abdomen.An ECG or echocardiogram may show swelling of the right side of the heart. Doppler echocardiography or right-sided cardiac catheterization are used to measure blood pressures inside the heart and lungs.TreatmentTreatment may not be needed if there are few or no symptoms. Hospitalization may be required for diagnosis and treatment of severe symptoms.Swelling may be managed by medications (diuretics) that help remove fluids from the body.Underlying disorders should be identified and treated. Some people may be able to have surgery to repair or replace the tricuspid valve. When surgical treatment is done it is usually done as part of another procedure, most commonly mitral valve repair for mitral regurgitation.Expectations (prognosis)Treatment of any underlying conditions, especially high blood pressure in the lungs and swelling of the right lower heart chamber, may correct the disorder. Surgical valve repair or replacement usually provides a cure. However, persons with severe tricuspid regurgitation that cannot be corrected may have a poor prognosis.ComplicationsWorsening of heart failureEndocarditisCirrhosisWeight lossLoss of appetiteCalling your health care providerCall your health care provider if symptoms of tricuspid regurgitation are present.PreventionPrompt treatment of disorders that can cause valve disease reduces your risk of tricuspid regurgitation. Treat strep infections promptly to prevent rheumatic fever.Any invasive procedure, including dental work and cleaning, can introduce bacteria into your bloodstream. The bacteria can infect a damaged mitral valve, causing endocarditis. Always tell your health care provider and dentist if you have a history of heart valve disease or congenital heart disease before treatment. Taking antibiotics before dental or other invasive procedures may decrease your risk of endocarditis.ReferencesKarchmer AW. Infectious endocarditis. In: Libby P, Bonow RO, Mann DL, Zipes DP, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 8th ed. St. Louis, Mo: WB Saunders; 2007:chap. 63.Nishimura RA, Carabello BA, Faxon DP, et al. ACC/AHA 2008 Guideline update on valvular heart disease: focused update on infective endocarditis: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines endorsed by the Society of Cardiovascular Anesthesiologists, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. J Am Coll Cardiol. 2008;52(8):676-685.
Can a person have both myopia and hypermetropia?
it is possible for a person to have both myopia and hypermetropia(hyperopia).The defect can be corrected by using bifocal lens.
What type of lens is needed to correct hypermetropia?
Hypermetropia is corrected with a converging lens, specifically a convex lens. This type of lens is thicker in the middle and helps to focus light rays onto the retina, correcting the vision problem associated with hypermetropia.
What actors and actresses appeared in Hypermetropia - 2011?
The cast of Hypermetropia - 2011 includes: Julio Macias
What are the release dates for Hypermetropia - 2011?
Hypermetropia - 2011 was released on: USA: 15 March 2011
What type of lens is used to correct hypermetropia?
Convex lenses are used to correct hypermetropia, which is also known as farsightedness. These lenses help to converge incoming light rays onto the retina, allowing individuals with hypermetropia to see objects up close more clearly.
What are the two main defects of human eye?
myopia and Hypermetropia
What is an eye defect?
are conditions where a person cannot see distinctly and comfortably. There are three common eye defects, and they are(i) myopia or near-sightedness, (ii) Hypermetropia or far-sightedness, and (iii) Presbyopia. These defects are corrected by the use of suitable spherical lenses.
What are some common eye ailments?
catract,myopia,hypermetropia&loss of eyesight
A person is suferring from hypermetropia what should be the distance that he keep while reading the book?
A person suffering from Hypermetropia has to keep a reading material much beyond 25cm from the eye for comfortable reading. This is due to light rays from a closeby object ae focussed at a point behind the retina. This defect arises either because (a) the focal length of the eye lens is too long, or (b) the eye ball has become too small. This problem can be corrected by using a convex lens of appropriate power. Eye glasses with converging lenses provide the additional focussing power required for forming the image on the retina.
How are mistakes corrected in science?
They are corrected by the further development of science.
What is past participle of correct?
The past participle of "correct" is "corrected."
What is the difference between Myopia and Hypermetropia?
Myopia is characterised by a slight elongation of the eyeball, causing the image to fall in front of the retina, while hypermetropia is characterised by a slight shortening of the eyeball, causing the image to fall a little behind the retina. In both cases, blur circles are formed instead of image points leading to blurring of the overall image.
