As is known, the novel coronavirus has the potential to cause your blood oxygen levels to fluctuate at disturbing levels. COVID-19 enters the body through the respiratory system, causing direct injury to a person’s lungs via inflammation. This can impact the efficiency of oxygen transfer into the bloodstream. That said, oxygen impairment can occur at different levels of COVID-19, and not simply for critically ill patients placed on ventilators.
However, not every COVID patient experiences low oxygen levels. Some only develop common symptoms of COVID.
That said, with the help of a pulse oximeter, one can determine the level of oxygen in one’s body.