Questions: All of the following are true of body temperature measurement except all temperatures should be the same, regardless of where the temperature is measured.

The answer is the first one: all temperatures should be the same, regardless of where the temperature is measured.

Explanation for each option:

1. All temperatures should be the same, regardless of where the temperature is measured.

   • This statement is incorrect. Body temperature can vary depending on the measurement site. For example, rectal temperatures are typically higher than oral temperatures, and oral temperatures are usually higher than axillary (underarm) temperatures.

2. An oral temperature reading higher than $99.5^{\circ} \mathrm{F}$ indicates a fever.

   • This statement is correct. A common threshold for fever when measured orally is $99.5^{\circ} \mathrm{F}$ or higher.

3. Temporal artery (TA) measurements can be measured in 3 seconds non-invasively.

   • This statement is correct. Temporal artery thermometers are designed to provide quick and non-invasive temperature readings, often within a few seconds.

4. Rectal and TA measurement are typically $1^{\circ}$ higher than oral readings.

   • This statement is correct. Rectal and temporal artery temperatures are generally about $1^{\circ} \mathrm{F}$ higher than oral temperatures.

Summary: The incorrect statement is the first one: all temperatures should be the same, regardless of where the temperature is measured. This is not true as body temperature readings can vary depending on the measurement site.