Final answer:
An Osborn or J wave on EKG should make you think of hypothermia as a possible diagnosis.
Step-by-step explanation:
An Osborn or J wave on EKG should make you think of hypothermia as a possible diagnosis. Hypothermia is a condition where the body temperature drops below normal levels. It can cause various changes in the EKG, including flattening or inversion of the T wave and the appearance of an Osborn or J wave.