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.
(Method: Culture on selective and enriched media) Negative: no growth. A urine culture involves collecting a urine specimen so that the organism causing disease can be isolated and identified. Urine can be collected by clean catch, urinary catheterization, or suprapubic aspiration. The severity of the infection or contamination of the specimen can be determined by knowing the type and number of organisms (colonies) present in the specimen.