Hematuria
Melena is the passage of black, tarry, and foul smelling stools. This is caused by the presence of digested blood in the stools.
Blood presence is caused through years of evolution , First there was a void and then came the Big Bang. The remainder of history before 40,000 years ago was mumbo-jumbo. Blood presence is addictive , and due to mutation Vampirism became about. Poor blood presence makes you weak in UV rays. (Politicians have little blood presence and are known to be afraid of the light.)
Blood poisoning or septicemia are systemic diseases associated with the presence and persistence of pathogenic microorganisms or their toxins in the blood.
blood: hemothorax air: pneumothorax
hematuria
Due to the presence of a red -colored pigment called haemoglobin .
Blood gets its color from the presence of oxegenated iron.
A & B antigens on the surface of the read blood cells
HemoccultFecal occult blood is the medical term meaning hidden blood in the stool. Related terms are melena (black, tarry stools from bleeding in the upper GI tract); hematochezia (visible red blood in stool), and BRBPR (bright red blood per rectum). Guaiac is a test to detect hidden blood in stool.
Ischemic Nephropathy
oxygen Carbon Dioxide
That is called a stroke.