The continent can be broken into four major landform regions: the Coastal Plains, the Eastern Highlands, the Central Lowlands and the Western Plateau. These landform regions have been created by movements in the Earth's crust, river erosion and changes in climate and sea level.
Causes of Low HGB and Low HCT. Figuring out hematocrit levels in the blood is done through Mean Corpuscular Volume or MCV and Red Cell Distribution Width or RDW. These tests determine whether someone is suffering from low Hgb and/or low HCT levels in their blood and can help doctors determine a cause. 1.Anemia is the direct result of a low red blood cell count.iguring out hematocrit levels in the blood is done through Mean Corpuscular Volume or MCV and Red Cell Distribution Width or RDW. These tests determine whether someone is suffering from low Hgb and/or low HCT levels in their blood and can help doctors determine a cause.
The HCO3 of 25 is in the normal range of 22 to 26 and is not causing this alkalosis. This tells us that the cause of this alkalosis is a low CO2 caused by hyperventilation: A RESPIRATORY ALKALOSIS. pH tells you if the blood gas will be acidotic, alkalotic or normal.here are also many non-renal causes of changes in HCO3 like keto-acidosis, lactic acidosis and NG suction, but kidneys are the main controllers of HCO3. More HCO3 means less acid and a higher pH. Less HCO3 means more acid and a lower pH. Normal HCO3 is 24 mEq with a normal range from 22 to 26 mEq.