Which temperature range is listed as the normal temperature range?

Which temperature range is listed as the normal temperature range?

• A. 97-99.5 F
• B. 97-98.5 F
• C. 98-99 F
• D. 96-98 F

Answer: (A)

Normal body temperature varies from person to person and changes with the time of day and the measurement method. While 98.6°F is a commonly cited average, healthy individuals can have oral temperatures that range roughly from 97°F to about 99.5°F. This wider span captures the natural diurnal fluctuations and individual differences, making 97–99.5°F the best representation of normal. Narrow ranges like 96–98°F or 98–99°F miss readings that can still be normal, and 97–98.5°F would exclude some normal, higher readings.

Normal body temperature varies from person to person and changes with the time of day and the measurement method. While 98.6°F is a commonly cited average, healthy individuals can have oral temperatures that range roughly from 97°F to about 99.5°F. This wider span captures the natural diurnal fluctuations and individual differences, making 97–99.5°F the best representation of normal. Narrow ranges like 96–98°F or 98–99°F miss readings that can still be normal, and 97–98.5°F would exclude some normal, higher readings.