Ready In. 30 m. Melt the butter or margarine in a large skillet over medium-high heat. Add the garlic and asparagus spears; cover and cook for 10 minutes, stirring occasionally, or until asparagus is tender. If you like your asparagus well done, reduce heat and cook an additional 10 minutes.
Another possible cause of low blood oxygen saturation is anemia, which occurs when the red blood cells don't have adequate hemoglobin, an iron-rich protein that acts as the oxygen carrier, according to the National Anemia Action Council. Anemia has many causes.
Causes of Low Blood Oxygen. The causes of low oxygen levels in blood exist in plenty - and range from illnesses like anemia to lack of oxygen in the atmosphere (the latter being quite common at high altitudes). Read on... In order to carry out various functions, our body requires a certain amount of oxygen circulating in our blood.