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Microhematuria, also called microscopic hematuria (both usually abbreviated as MH), is a medical condition in which urine contains small amounts of blood; the blood quantity is too low to change the color of the urine (otherwise, it is known as gross hematuria).
Infection. In some cases, loin pain-haematuria syndrome occurs after a bladder infection with involvement of the kidney. Even when the infection has been treated and bugs can no longer be found in the urine, pain may persist for 6 months, or even longer in some cases. "Classic loin pain-haematuria syndrome".
Hematuria or haematuria is defined as the presence of blood or red blood cells in the urine. [1] "Gross hematuria" occurs when urine appears red, brown, or tea-colored due to the presence of blood. Hematuria may also be subtle and only detectable with a microscope or laboratory test. [2]
Most patients with thin basement membrane disease are incidentally discovered to have microscopic hematuria on urinalysis. The blood pressure, kidney function, and the urinary protein excretion are usually normal. Mild proteinuria (less than 1.5 g/day) and hypertension are seen in a small minority of patients.
Microscopic examination of the tissue can provide information needed to diagnose, monitor or treat problems of the kidney. A renal biopsy can be targeted to a particular lesion, for example a tumour arising from the kidney (targeted renal biopsy). More commonly, however, the biopsy is non-targeted as medical conditions affecting the kidney ...
Gross examination of a kidney (right of image) with a renal oncocytoma (left of image).. Gross processing, "grossing" or "gross pathology" is the process by which pathology specimens undergo examination with the bare eye to obtain diagnostic information, as well as cutting and tissue sampling in order to prepare material for subsequent microscopic examination.
Proteinuria of greater than 3.5 g /24 h /1.73 m 2 (between 3 and 3.5 g/24 h /1.73 m 2 is considered to be proteinuria in the nephrotic range) or greater than 40 mg/h/m 2 in children. [9] [10] The ratio between urinary concentrations of albumin and creatinine can be used in the absence of a 24-hour urine test for total protein. This coefficient ...
Most people with blood in the urine do not have bladder cancer; up to 22% of those with visible haematuria and 5% with microscopic haematuria are diagnosed with the disease. [1] Women with bladder cancer and haematuria are often misdiagnosed with urinary tract infections, delaying appropriate diagnosis and treatment. [2]