Body temperature varies by location and method of measurement. Rectal temperature is most accurate for infants under 3 months. Oral temperature requires tight lip clamping and nose breathing. Forehead and armpit readings can be slightly lower than mouth
Hypothermia is a dangerous drop in body temperature below 95°F. Normal body temperature averages 98.6°F. About 700-1,500 people die yearly from cold exposure in the U.S
The standard body temperature is 98.6 degrees Fahrenheit (37°C). This reading has been accepted since 1871 by Wunderlich. A healthy temperature range is between 97 to 99°F
Osborn wave is a positive deflection at J point in precordial leads. J point marks QRS-ST segment junction, representing depolarization-repolarization transition. J wave appears as reciprocal negative deflection in aVR and V1
Hypothermia occurs when body temperature drops below 95°F. Mild hypothermia is 90-95°F, moderate 82-90°F, severe below 82°F. Core temperature measures internal organs, not skin surface
PTE removes clotted blood from pulmonary arteries supplying lungs. Mortality rate is typically 5%, lower in experienced centers. Requires full cardiopulmonary bypass, deep hypothermia, and cardioplegia. Surgery performed in standstill with 20-minute circulatory arrest intervals