Ya,sure.
It's the other way around. The black stuff is termed "coffee grounds emesis", and is the result of intestinal bleeding. It is the bleeding that is the cause of the low hemoglobin.
No energy, hard to think, fever, terrible, terrible headache. Source: My experience, I went into the hospital with a hemoglobin level of 4.5. Doctors couldn't believe I was still conscious and walking around.
HDW, or hemoglobin distribution width, measure hemoglobin heterogeneity. Anemia's and vitamin deficiencies can result in lower than normal levels. If levels are low, further testing is done to determine the exact cause.
It highly depend on the circumstance. Some bacteria will destroy the hemoglobin, and thus the hemolyzed blood appears transparents, whereas other process will only destroy the hemoglobin wall and thus liberating the hemoglobin, which is then pale cherry roughly in color.
No, asthma is related to low hemoglobin.
Yes, of course! Low Hemoglobin means anemia, and it is said that "there are not leukemia without anemia"
Hemoglobin is the fluid that transports blood cells. If you get a transfusion of red blood cells, they would be in the hemoglobin even if it is low.
HIV is a virus that causes AIDS. It does not result from abnormal hemoglobin or abnormal hemoglobin levels.
Low hemoglobin level
hemoglobin
An abnormally low quantity of hemoglobin in the blood is called anemia. Anemia also refers to a low red blood cell count.