Blood tests: Severe anemia with reduced red blood cells and hematocrit can cause lower blood pressure; pernicious anemia with neurological dysfunction in megaloblastic anemia can produce postural hypotension; determination of blood cell pressure can help determine changes in blood volume such as dehydration; a significant increase in blood leukocytes can be beneficial in the diagnosis of infectious shock; a significant decrease in blood glucose can cause hypotension and even shock, when attention should be paid to distinguishing between such It is also important to distinguish whether the hypoglycemia is caused by excessive insulin secretion or by Addison’s disease or hypopituitarism; the measurement of blood and cerebrospinal fluid Convoy reaction can help diagnose spinal consumption that can cause hypotension; electrolyte disorders such as hypokalemia caused by various reasons can also be the cause of hypotension.