Which information would the nurse provide when a patient asks why her temperature reading is not a consistent number? Select all that apply. One, some, or all responses may be correct.
A) Body temperature can vary throughout the day due to factors such as activity level and time of day.
B) External factors such as environmental temperature can influence temperature readings.
C) Different methods of temperature measurement (oral, axillary, rectal) may yield slightly different results.
D) Illness or infection can cause fluctuations in body temperature.