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Hematuria can be classified according to visibility, anatomical origin, and timing of blood during urination. [1] [6]In terms of visibility, hematuria can be visible to the naked eye (termed "gross hematuria") and may appear red or brown (sometimes referred to as tea-colored), or it can be microscopic (i.e. not visible but detected with a microscope or laboratory test).
Hemorrhagic cystitis or haemorrhagic cystitis is an inflammation of the bladder defined by lower urinary tract symptoms that include dysuria, hematuria, and hemorrhage.The disease can occur as a complication of cyclophosphamide, ifosfamide and radiation therapy.
The syndrome presents with hematuria (blood in the urine) and flank (a region of the lower back beneath the ribs and above the ilium) pain which can result from a number of causes. Nonglomerular causes of bleeding (e.g., urinary infection, tumor, or nephrolithiasis) must be excluded.
In all cases, however, the inflammatory processes in the glomerulus cause the capillaries to swell and the pores between podocytes become large enough that inappropriate contents in the blood plasma (i.e. red blood cells, protein, etc.) will begin to spill into the urine. This causes a decrease in glomerular filtration rate (GFR) and, if left ...
In men, urethritis is diagnosed by at least one of the following: mucopurulent or purulent urethral discharge on examination, ≥ 2 white blood cells per oil immersion field from a Gram stain of a urethral swab, or positive leukocyte esterase and/or ≥10 white blood cells per high power field of the first-void urine. Men who meet the criteria ...
Cancers of the urinary tract can cause urinary obstruction but the process is more gradual. Cancer of the bladder, prostate or ureters can gradually obstruct urine output. Cancers often present with blood in the urine, weight loss, lower back pain or gradual distension in the flanks. [16]
The upper urinary tract (ureters and kidney) is also imaged for tumors that could cause blood in the urine. This is typically done by injecting a dye into the blood that the kidneys will filter into the urinary tract, then imaging by CT scanning. Those whose kidneys are not functioning well enough to filter the dye may instead be scanned by MRI ...
Hemoglobinuria is a condition in which the oxygen transport protein hemoglobin is found in abnormally high concentrations in the urine. [1] The condition is caused by excessive intravascular hemolysis, in which large numbers of red blood cells (RBCs) are destroyed, thereby releasing free hemoglobin into the plasma. [2]