The %LET statement is very often the first macro language statement that is learned. It is roughly the macro language. equivalent of the of the DATA step's assignment statement. One of the easiest ways to define a macro variable is through the %LET statement. (Macro language statements always start. with a %).
Hemolyzed blood is suggestive of renal sources of blood, while non-hemolyzed suggests urinary tract bleeding. Some say Nephrologic vs Urologic causes of blood in the urine. the strip is really a screening tool though and either way blood shows up-a follow up evaluation is needed.Haemolysis is the breaking down of red blood cells.ome say Nephrologic vs Urologic causes of blood in the urine. the strip is really a screening tool though and either way blood shows up-a follow up evaluation is needed. Haemolysis is the breaking down of red blood cells.
Other descriptions are sometimes used such as: a trace of blood in urine, red blood cells (RBCs) in urine, or visible blood in urine. When blood in urine is microscopic, the severity is measured as red blood cells (RBC) per high power field (HPF) under the microscope. Usually, >3-5 RBCs/HPF is considered abnormal. With >20-50 RBCs/HPF, a significant urological or medical problem often exists. Blood in urine can originate from the kidneys, ureters, urinary bladder and the urethra. Blood in urine Blood in urine in women can sometimes originate from vaginal bleeding, uterine bleeding or menstrual period.