Doctor insights on:
Skin Test For Dehydration
Always thirsty, drink excessive water amounts, general bloated feeling, low urine output and skin test says I am dehydrated. Causes? Suggested Tests?
If you were in close contact with an active case of tuberculosis and tested borderline or indeterminate, a second test maybe necessary in 8-10 weeks to completely rule out the disease. Since the test has limitations,
screening for tuberculosis with igras or interferon-gamma release assays, has been recommended by the cdc especially for those who received bcg, are homeless, and history drug abuse. ...Read more
See below: You will need a chest x-ray and a screening by your doctor. At your age, if your chest x-ray is normal and you have no risk factors you may not need any treatment. If you have risk factors, treatment of latent TB has become much easier in the last year. If you are determined to have active TB you can be cured with 6 months of TB therapy. ...Read more
Where would be the best place for an American to got and get the Montenegro Skin Test since it is not given in the United States?
Leishmaniasis: Leishmanin skin test aka Montenegro skin test is not approved for use in the States due to lack of standardization. Since you live in the States, rather than leave the country for a single test, ask your Infectious Disease specialist about other options for testing & diagnosis. Check out http://emedicine. Medscape. Com/article/220298-overview for more info on this infection especially "Workup" tab. ...Read more
Had a PPD skin test and the result is 10 mm the reference says 5 to 10 is borderline. And I don't get it what they mean and what to do next?
Positive PPD: A +ve PPD is usually evaluated with a plain Chest Xray. If that is normal, and if it appears that the positive PPD is new (if there is a history of previous negative tests) then a course of treatment with anti-tuberculosis antibiotics is usually given, this prevents you from getting sick with TB. Sometimes a borderline (intermediate) test result can be from a prior BCG vaccination. ...Read more
Are there any reliable tests for home air quality wrt common allergens? I have skin test results but still unsure why my symptoms vary at times.
Mold: There are some companies that will come to do a mold assessment on a home, but usually quite expensive. ...Read more
Yes: If the test is done early in the disease, the body will not have had time to develop the factors that make the test turn positive. Repeat testing a few months later would show positive. ...Read more
+ PPD: This means that there was minimal induration on a PPD that is read 48 to 72 hours after administered. The PPD is likely to be + in someone who has been exposed to TB before or if they were previously given bcg. It is likely to be - in someone who does not fit into those categories. ...Read more
See below: If your PPD is positive you need a chest x-ray and a screening by your doctor. At your age, if your chest x-ray is normal and you have no risk factors you may not need any treatment. If you have risk factors, treatment of latent TB has become much easier in the last year. If you are determined to have active TB you can be cured with 6 months of TB therapy. ...Read more
I have been exposed to someone with TB but do not have a positive skin test; do I still need to take medicine?
3 months: Get another test in three months to know. ...Read more
Ppd skin test, negative, no reaction and swelling (72 hrs). The test was taken in last tuesday morning, 9am, now it gets swelling and itch. Positive?
Delayed onset ppd: This could represent a positive reaction. Their is a besst confirmatory test called a quantiferon-gold test which is a gamma-interferon release assay for tb. It has some limitations but if positive is very accurate for diagnosis, ask an infectious disease specialist about this if your pcp does not know about this test. ...Read more
Required of some: Public health and safety statutes in some locals require that workers in public venues like the food industry, jails, health care, etc. Show evidence that they do not have evidence of contageous illness. Though not common, the resurgence of multiply drug resistant TB in some populations has kept concern detecting this disease high. If at risk thru work or travel it is to your advantage to be screened. ...Read more
Minimal: Very little pain if applied properly. A pinprick at most. ...Read more
Celiac disease: Yes. There is a celiac panel that is more specific. ...Read more
Blood test: There is both a skin test and a blood test for tb. ...Read more
Not aware of any: But with advancing age, the response to the skin test may be falsely negative. There are newer tests available which work by assessing the lymphocytes capacity to respond to antigenic stimulation by a component of the tubercle bacillus, but whether this differs in age groups I do not know. ...Read more
Prick testing: In an allergist's office, testing is started using a plastic prick (scratch) device. A small volume of the purified allergen is gently pricked on to the skin surface, usually the forearm or the back, with very little pain although it can be very itchy. If prick testing is negative, sometimes intradermal testing is done with small needles. ...Read more
Same as before: Skin tests haven't changed: a small amount of liquid (ppd, or purified protein derivative) is injected under the skin on your forearm. The difference is that there is now a blood test (interferon-gamma release assays, such as quantiferon gold) that can be used in place of the skin test. ...Read more
No: It is recommended to wait for at least 48 hours before interpreting the size of the swelling arising at the site of the TB test. This is because the swelling continues to increase for the first 48 hours & that is how this test has been standardized. Please make sure that you do not get your test done on a thursday, so the 48 hours time point won't come over a weekend. ...Read more
48-72 hours: Any physician can order or apply a TB skin test. A very tiny needle is used to inject the test media, on the forearm. You will need to return in 48-72 hours to have it read. ...Read more
Hard to say: The test is based on readings at 48 or 72 hours more or less. Any further delay changes the conditions by which the borderline tests are interpreted. A grossly positive test will be so large and reactive the site could be accepted as positive for days later, but a borderline or negative could not be established unless the time criteria was met. ...Read more