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5
A Bit about Body Temperature
Body temperature refers to the internal temperature of the body (also
known as core temperature). ‘Normal’ body temperature
depends on when, where and in whom it is measured. Body
temperature fluctuates in any given 24-hour cycle. It tends to be
lowest in the early morning and highest in the late afternoon. Body
temperature also varies from one body part to another, as well as
amongst different ages, especially under 6 months and over 65 years of
age. Body temperature may also increase as a result of overdressing or
strenuous exercise, especially during hot weather.
Incorrect temperature taking may cause false alarm. There are many
things that can affect your body temperature like extreme activity,
ovulation, pregnancy, smoking and so on.
The following temperature ranges are considered normal:
Information from “Determination of Normal Ear Temperature with an Infrared Emission
Detection Thermometer” by Chamberlain, J.M., MD, and Terndrup, T.E., MD, published in
the Annals of Emergency Medicine, January 1995
Note: Do not self-diagnose. The use of any thermometer is not intended as a
substitute for consultation with a physician.
If the temperature of a child under 6 months old reaches 40.0°C / 104.0°F or more,
consult a doctor immediately. Please note that, as the patient becomes older, this
40.0°C / 104.0°F ceiling actually falls e.g. a 2 year old may need to consult a doctor
immediately if their temperature reaches 39.0°C / 102.2°F.
CAUTION: High prolonged fever always requires medical attention, especially for
young children.
Ensuring Safe, Accurate Measurements
Do not touch the probe and keep it free from perspiration, cosmetics,
oil, hair, dust or any other foreign body as they will affect the accuracy of
temperature measurement.
Clean the probe by very gently wiping it with, ideally, a cotton swab
moistened with alcohol or a very soft cloth moistened with alcohol.
Alternatively a dry cotton swab can be used. Never use an abrasive cloth
as it will damage the probe. Always allow the alcohol (or moisture) to
completely dry out before taking temperature after cleaning.
If there any signs of damage to the lens then please stop using and get
in touch with us (contact details on page 16)
The thermometer is not waterproof so do not place any part of it near liquid.
Note: Never immerse thermometer in liquids.
Do not expose the thermometer to extreme high or low temperatures for
prolonged periods, such as in a particularly hot or cold vehicle or in
direct sunlight.
When taking ambient temperature, please wait 20 minutes before taking
temperature for the probe to acclimatise when moving from one room
to another, and 30 minutes when moving from indoors to outdoors (or
vice versa).
Normal temperature ranges by age
