Ok I need to know what a BK virus is..... they are wanting a urine sample to test for that.... I have not heard of that...
http://en.wikipedia.org/wiki/BK_virusThe BK virus was first isolated in 1971 from the urine of a renal transplant patient, initials B.K.[1] The BK virus is similar to another virus called the JCV since their genome sequences share 75% homology. Both of these viruses can be identified and differentiated from each other by carrying out serological tests using specific antibodies or by using a PCR based genotyping approach.The BK virus rarely causes disease since many people who are infected with this virus are asymptomatic. If symptoms do appear, they tend to be mild: respiratory infection or fever. These are known as primary BK infections.The virus then disseminates to the kidneys and urinary tract where it persists for the life of the individual. It is thought that up to 80% of the population contains a latent form of this virus, which remains latent until the body undergoes some form of immunosuppression. Typically, this is in the setting of kidney transplantation or multi-organ transplantation.[2] Presentation in these immunocompromised individuals is much more severe. Clinical manifestations include renal dysfunction (seen by a progressive rise in serum creatinine), and an abnormal urinalysis revealing renal tubular cells and inflammatory cells.It is not known how this virus is transmitted. It is known, however, that the virus is spread from person to person, and not from an animal source. It has been suggested that this virus may be transmitted through respiratory fluids or urine, since infected individuals periodically excrete virus in the urine. A survey of 400 healthy blood donors was reported as showing that 82% were positive for BK virus.[3]In some renal transplant patients, the necessary use of immunosuppressive drugs has the side-effect of allowing the virus to replicate within the graft, a disease called BK nephropathy.[4]It is thought that 1-10% of renal transplant patients progress to BK virus nephropathy (BKVN) and up to 80% of these patients are reported to have lost their grafts. The onset of nephritis can occur as early as several days post-transplant to as late as 5 years.It is also associated with ureteral stenosis and interstitial nephritis. In bone marrow transplant recipients it is notable as a cause for hemorrhagic cystitis.This virus can be diagnosed by BKV blood & urine testing, in addition to carrying out a biopsy in the kidneys. PCR techniques are often carried out to identify the virus.[5]The cornerstone of therapy is reduction in immunosuppression. A recent surge in BKVN correlates with use of potent immunosuppressant drugs, such as tacrolimus and mycophenolate mofetil (MMF). Studies have not shown any correlation between BKVN and a single immunosuppressive agent but rather the overall immunosuppressive load.No guidelines or drug levels and doses exist for proper reduction of immunosuppressants in BKVNMost common methods:Withdrawal of MMF or tacrolimusReplacement of tacrolimus by cyclosporineOverall reduction of immunosuppressive loadSome cyclosporine trough levels reported to be reduced to 100-150 ng/ml and tacrolimus levels reduced to 3-5 ng/mlRetrospective analysis of 67 patients concluded graft survival was similar between reduction and discontinuation of agents.[citation needed]Single center study showed renal allografts were preserved in 8/8 individuals managed with reduction in immunosuppression while graft loss occurred in 8/12 patients treated with an increase in therapy for what was thought to be organ rejection.[citation needed]Other therapeutic options include Leflunomide, Cidofovir, IVIG, and the fluoroquinolones. Leflunomide is now generally accepted as the second treatment option behind reduction of immunosuppression.
I heard of the CMV thing.... I was positive and my donor was neg..... so I guess I cant get that or wont have to deal with that.... today I had a urine test done for the BK virus which came out neg....but they said that they do the test every couple of weeks and then monthly..... I hope you get rid of it.... and I am wondering can a person catch it again..... or after you have it you have the antibodies and then no more problems....??