Meat producers have fed growth-promoting antibiotics to food animals for years. Recently, scientists have raised concerns that, in conjunction with the general overuse of antibiotics in humans, this use of sub-therapeutic levels of antibiotics in food animals may lead to serious health risks for people.
Though the pulse oximeter actually measures the saturation of oxygen in your blood, the results are often used as an estimate of blood oxygen levels. Normal pulse oximeter readings range from 95 to 100 percent, under most circumstances. Values under 90 percent are considered low.
A pulse oximeter indicates the level of oxygen saturation of the hemoglobin in the blood, referred to as SpO2. The test is usually performed on the index finger, measurements being taken at the capillary level. Results can be used to diagnose poor binding between oxygen and hemoglobin, or other hematological problems.