Which ink color is used to record a high-temperature reading on the temperature record card?

• A. Blue
• B. Red
• C. Black
• D. Green

Answer: (A)

Color-coding on the temperature record card is used to make readings quickly distinguishable. Blue ink is designated for recording high-temperature readings, so those entries stand out when you skim the log. This helps watchstanders spot overheating trends at a glance, even amid many other notes and numbers. Using blue for highs keeps the high readings visually separate from normal or low values and from any alarm color conventions that might be reserved for alerts. In short, blue is chosen to make elevated temperatures easy to identify fast and to keep the documentation consistent across the log. Other colors may be used for different categories, but blue specifically signals a high temperature.