Please don't go for multiple investigations without doctor's instructions.
East or West even today our clinical knowledge is best.
Try to see and treat your patient not the reports
If the patient's general conditions will get deteriorate then only lab and radiological findings will show the findings.
Please see
Oxygen level - @ Fingertip
Pulse rate - @ Wrist
BP - @ cubital fossa
Temperature - @ Axilla
RR -@ Chest
These findings will tell you everything about patients like how much lungs get damaged etc
