Take the thermometer and hold it firmly
, with the bulb pointing away from you. Raise the thermometer above your head and quickly swing it downward. Stop once the thermometer is in a vertical position. Repeat as necessary.
How do you fix a broken thermometer?
Heating
–Heating the thermometer bulb is often the quickest and most successful method of repairing column separations. The heat can be applied by holding the bulb under a faucet of hot running water or by immersion in a pan of slowly heating water.
How do you know if a thermometer is not working?
Insert the thermometer stem at least an inch deep in the ice water without letting the stem touch the glass. Wait for the
thermometer to register
; this usually takes a minute or less. The thermometer is accurate if it registers 32° F or 0° C. (My three thermometers are within 1 degree of accuracy at this end.)
How do you fix a mercury thermometer?
Obtain a small quantity of dry ice or other source of extreme cold
. Immerse the thermometer BULB ONLY (TAKE CARE NOT TO IMMERSE THE ENTIRE BULB OR ANY PORTION OF THE STEM) halfway into the dry ice and observe the descending mercury column carefully.
How do I get my thermometer back to normal?
Grasp the Stem End Securely
. Grasp the end of the thermometer that is opposite the bulb end with your fingers and thumb. The stem ends in a knob (usually colored either blue or red) that helps you to hold onto the thermometer during the shaking down process.
Is 99.7 a normal temperature?
In most adults, an
oral or axillary temperature above 37.6°
C (99.7°F) or a rectal or ear temperature above 38.1°C (100.6°F) is considered a fever. A child has a fever when his or her rectal temperature is higher than 38°C (100.4°F) or armpit (axillary) temperature is higher than 37.5°C (99.5°F).
Do thermometers go bad?
Thermometers do not expire
, but they do have to eventually be replaced. Digital thermometers will last about 3 to 5 years, while mercury thermometers will last indefinitely as long as they aren't cracked or damaged.
How do you check if a mercury thermometer is working?
If the
liquid
in the thermometer bulb is any color other than silver, it is not a mercury thermometer. If the liquid in your thermometer bulb is silver, then the liquid might be: Mercury.
How long does it take for a mercury thermometer?
After shaking the mercury down, place the thermometer under the child's tongue, with the bulb toward the back of the mouth. Tell your child to keep the lips firmly closed, but not to bite the thermometer. 3. Leave the thermometer in place
for 3 minutes
.
How do you check a temperature without a thermometer?
- Touching the forehead. Touching a person's forehead with the back of the hand is a common method of telling whether or not they have a fever. …
- Pinching the hand. …
- Looking for flushing in the cheeks. …
- Checking urine color. …
- Looking for other symptoms.
Why do we have to shake the thermometer after use?
It takes big forces to push the mercury quickly through such a capillary. During expansion, there is easily enough force to push the mercury up through the capillary. … Shaking the thermometer hard is
what gets the mercury down
and ultimately drives it through the constriction so that it rejoins into a single column.
What temperature is normal?
The average body temperature is
98.6 F (37 C)
. But normal body temperature can range between 97 F (36.1 C) and 99 F (37.2 C) or more. Your body temperature can vary depending on how active you are or the time of day. Generally, older people have lower body temperatures than younger people have.
Is 99.1 a low-grade fever?
The medical community generally defines a fever as a body temperature above 100.4 degrees Fahrenheit. A body temp
between 100.4 and 102.2 degree
is usually considered a low-grade fever.
Is a 99.9 fever bad?
While temperatures between 98.6 and 99.9 degrees might be
high
for you, minor elevations in temperature are less likely to be a true indication of illness and are often within the range of normal variation. There are many causes of fever.
Is 99 a fever under tongue?
A factor that needs to be considered is how you took your temperature. If you measured your temperature under your armpit, then
99°F or higher indicates a fever
. Temperature measured rectally or in the ear is a fever at 100.4°F (38°C) or greater. An oral temperature of 100°F (37.8° C) or more is a fever.
