Vascular occlusion test apparatus, systems, and methods for analyzing tissue oxygenation

A method for analyzing data related to tissue oxygenation in a patient, comprising:

• activating a means for restricting blood flow to an arm or limb of a patient;
• determining a target tourniquet pressure for inducing ischemia within the arm or limb;
• obtaining a number of baseline tissue oxygen measurements from the patient while the restriction means is in an unrestricted state;
• determining a baseline average StO2 value from the baseline tissue oxygen measurements;
• controlling the restriction means to a pressure at or near the target tourniquet pressure during a first period of time;
• determining an ischemia slope start time and an ischemia slope end time during the first period of time;
• determining an ischemia slope between the ischemia slope start time and the ischemia slope end time;
• controlling the operation of the restriction means to un-restrict blood flow to the arm or limb during a second period of time;
• determining a recovery slope start time and a recovery slope end time during the second period of time;
• determining a recovery slope between the recovery slope start time and the recovery slope end time;
• and
• storing one or more tissue oxygen measurements in a memory unit.