An oxygen level chart is a diagram that shows the amount of oxygen in a subject’s blood circulation over time. The body has a healthy oxygen saturation level in blood if 95 to 100 percent of red cells passing through the lungs are loaded with oxygen, according to Harvard Health.Continue Reading
The red blood cells must supply sufficient oxygen to all body tissues and organs to keep someone alive. Low blood oxygen, or hypoxemia, may be caused by anemia, chronic pulmonary disease, acute respiratory distress syndrome or a blocked airway, according to Mayo Clinic.
A pulse oximeter is clipped on the finger to estimate oxygen saturation levels.Learn more about Diagnostics & Imaging
A blood circulation flowchart depicts how the three independent systems, the cardiovascular, pulmonary and systemic, work together. The cardiovascular system consists of the heart, and the pulmonary system consists of the lungs. The systemic includes arteries, veins, portal and coronary vessels, as LiveScience depicts.Full Answer >
A ferritin blood test measures the level of ferritine in the body, explains MedicineNet. As ferritin is the major iron storage protein in the body, ferritin blood tests can indirectly measure iron levels. No special preparation is required before the blood test.Full Answer >
A blood urea nitrogen, or BUN, test is a blood test that determines the blood nitrogen level, according to WebMD. Typically, a doctor performs a BUN test to determine the efficiency of the kidneys, check the progress of kidney disease, and check the effectiveness of a kidney disease treatment.Full Answer >
Fasting for a certain length of time before a blood test is one way of ensuring that your test results are not contaminated by the food you've eaten. The Mayo Clinic notes that fasting may not be necessary to get an accurate reading on a cholesterol test, but most doctors will still ask that you fast for at least 12 hours before your appointment.Full Answer >