IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-8-36312 Original Research Paper Fall in Oxygen Saturation and Noticeable Tachycardia in Health Care Workers Posted in COVID-19 Intensive Care Unit: An Observational Study Kr. Gehlot Dr. Ritu Verma Dr. August 2021 10 8 01 02