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When a tuberculin skin test is positive the hard center and erythema surrounding the induration are a result of?
imune complexes
What does the result in mantoux test reading after 72 hours erthema 55mm and induration 44 mm mean?
A Mantoux test reading of 55 mm erythema and 44 mm induration after 72 hours indicates a strong positive reaction, suggesting that the individual may have been exposed to Mycobacterium tuberculosis or has a latent tuberculosis infection. The significant induration, particularly over 15 mm, typically signifies a higher risk of active TB or previous exposure, especially in high-risk populations. Further evaluation and clinical correlation are necessary for diagnosis and management.
What are the signs and symptoms of pyomyositis?
the symptoms of pyomyositis are:Early stage:feverlocalized inflammationmuscle painsepsistender induration of the effected musclelate stages :abscess formationbacterimia and metastatic abscesses
What is a tuberculin skin conversion?
A TB skin conversion is defined as an increase of 10 mm or greater of induration within a two year period, regardless of age.
Is a 2 percent ppd bad?
The PPD skin test for tuberculosis is calculated in MM not percent. Induration of 2 or less than 2 mm, without blistering, is considered a negative skin test.
What is the medical term meaning abnormal hardening of bone?
You might be thinking of "scleroderma".Induration is the term for hardening of soft tissues like skin.A hardening of soft tissues, like skin, is called induration.dermatosclerosis
What is the montenegro test for leishmania?
MONTENEGRO TEST is a name given to a procedure that intends to determine;1.If a patient was previously exposed to any strain of leiashmania ie.this might help to suggest a proper therapy2.If the patient is having either CHRONIC or ACUTE Leishmaniasis or if is having leishmaniasis at all since some patients are assymptomaticThe procedure is also called LEISHMANIN TEST and was discovered by a group of scientists who conducted the tests in a region called KEANA in NIGERIA.MECHANISM OF THE PROCEDURE.It manipulates delayed hpersensitivity reaction as its basis of determination.When i say delayed hypersensitivity reaction i mean the reaction of body defense cells against a foreign antigen when it enters the body which normally takes time[delayed] to form an induration[a hardness/compact substance] that can be seen as indicator of the reaction by man.NB;An induration will only form if the antibodies for that antigen was already present in the body and thats why i previously sayed,the test is used to determine if the patient was previously exposed to any strain of the disease.Incase of LEISHMANIA,leshmanin[antigen prepared by deeping 0.1ml/1million of leishmania in 0.5% phenol] is intradermally injected into the skin ie.normally of the forearm.The following results are expected;1.If an induration forms it means the patient had been previously exposed to the strain thus the results are termed positive[normally an induration of 5mm in diameter is formed after 2(48hrs)-3(72hrs)DAYS]2.If it doesnt occur it means the test is negative ie.VISCERAL LEISHMANIASIS the test is always negative untill late stages of recoverly so there is no point of testing it.So this strictly means MONTENEGRO TEST IS FOR CUTENEOUS LEISHMANIASIS TESTING.TO DETERMINE WETHER THE DISEASE IS ACUTE OR CHRONIC.An injection of leishmanin is made at the site of the lesion and at the forearm,and the results of appearence of an induration are compared.If results are the same it means the CL IS ACUTE.Answered by,SIMON BONDER OBETH MWASAMBUNGU,MUHIMBILI UNIVERSITY OF HEALTH AND ALLIED SCIENCES
What is the medical term meaning hardness?
There are two types of muscular hardness. One is when you strain the muscles through physical work they increase in size and strength. This is called hypertrophy. The other type of muscle hardness is when muscles become hard soon after death due to lack of circulation. This is referred to as rigor mortis.
Can you get a TB skin test while getting chemotherapy?
Yes, but because your immune system is compromised (e.g. you got cancer because your immune system isn't working at its best, and you just had chemo), the provider "reading" the TB skin test result will follow guidelines for immunocompromised patients. You may have less of a response than a patient with a normally functioning immune system. This usually means that a raised "induration" is read as positive when it is smaller than the regular guidelines.
What is BCG challenge test?
BCG is generally given as vaccination in newborns. it theoretically prevents tuberculosis. to detect T.B. mantaux or tuberculin skin test is done. tuberculin skin test could be negative in a number cases of tuberculosis. BCG VACCINE IS USED AS A TEST IN SUSPECTED TUBERCULOSIS DISEASE it produces accelerated reaction. induration >5mm within 48 - 72 hours, formation of pustule in five days , scar by 1 week.-- this is BCG challenge test.
What is mantoux skin test used for?
Montoux skin test is used to test infection by tuberculus bacteria. An intradermal injection is given and test result is seen from 48 to 72 hours. An induration for more than 10 mm indicates positive motaux test. It only indicates that there is recent infection by tuberculus bacteria. It does not denotes anything else. It is sometimes false negative is severe tuberculosis. It helps in diagnosis of the tuberculosis.
How do you do skin testing of parenteral medications?
Skin testing for parenteral medications typically involves intradermal injection of a small amount of the medication in question. The area is then observed for signs of a local allergic reaction, such as redness, swelling, or induration, usually within 15 to 30 minutes. This method helps identify potential hypersensitivity before administering the medication systemically. It's crucial to perform skin testing in a controlled environment, often with emergency support available, due to the risk of severe allergic reactions.
