Analyzing a sample of bone marrow may reveal what's causing your blood problem. Bone marrow biopsy is commonly used to diagnose a variety of blood problems â both noncancerous and cancerous â including blood cancers, such as leukemia, lymphoma and multiple myeloma. A bone marrow biopsy may also detect cancers that started elsewhere and traveled to the bone marrow.
why do i need a urine culture? Do you suspect you have a urinary tract infection or are you having difficulty or pain on urination and a frequent urge to urinate? A urine culture is usually ordered when a person has symptoms typical of a UTI such as pain or burning when urinating and frequent urges to urinate. Sometimes antibiotic therapy may be prescribed without requiring a urine culture for young women who display symptoms.
Guide. A urine culture is a test to find and identify germs (usually bacteria) that may be causing a urinary tract infection (UTI) . Urine in the bladder normally is sterile-it does not contain any bacteria or other organisms (such as fungi). But bacteria can enter the urethra and cause an infection.A urine sample is kept under conditions that allow bacteria and other organisms to grow.If few or no organisms grow, the test is negative. If organisms grow in numbers large enough to indicate an infection, the culture is positive.rine in the bladder normally is sterile-it does not contain any bacteria or other organisms (such as fungi). But bacteria can enter the urethra and cause an infection. A urine sample is kept under conditions that allow bacteria and other organisms to grow.