Why does the pulse oximeter not read my dad's recording properly?

Dr. Lalit Kumar Bansal is a General Surgeon who completed his MBBS at MGMMC, Indore, and MS in General Surgery at RNTMC, Udaipur. He specializes in Laparoscopic Surgery, Urology surgery, Gastrointestinal surgery, and cancer surgery and has 14 years of clinical experience. Currently, he is practicing at Dr. Ram Manohar Lohia Hospital, in New Delhi, India.

Dr. Sneha Kannan is a skilled Dental Surgeon with expertise in providing general dental care, including scaling, fillings, and preventive treatments. She does oral surgery procedures such as extractions and minor surgical interventions. She does procedures in restorative dentistry, including crowns, bridges, and dentures. She is an expert in doing endodontic treatments such as root canal therapy. She is well-versed in doing procedures in cosmetic dentistry, including teeth whitening and smile correction. She can provide pediatric dental care for children’s oral health and preventive treatments. She promotes oral hygiene awareness and preventive dental practices.