A frantic search for pulse oximeters in Kerala, their price shoots up too Updated: Updated: Share Article AAA A volunteer uses an oximeter to check the oxygen level of a man. File | Photo Credit: REUTERS There seems to be an absolute shortage of pulse oximeter, the tiny equipment used to determine oxygen level in the blood, in Kerala, also leading to a steep rise in its prices across districts. Falling of oxygen levels in blood is a major reason for death of COVID-19 patients. Those tested positive for SARS-CoV-2 along with suspected patients have been advised to use the meter to measure the oxygen levels regularly and seek medical help if their condition worsens.