I'm really concerned about my oxygen levels since I've tested positive for COVID-19. As of May 2nd, my oxygen level is at 92. The PCR results showed I'm COVID-19 positive with an E gene Ct value of 23 and an RdRp gene Ct value of 21. What do these Ct values mean? Should I be worried about the oxygen level too? Is there anything specific I need to do or look out for?