Should you shake down a thermometer before using it?
This is about the non-digital, analog thermometers used to see if you have a fever. Before you can use an oral thermometer, you have to shake it to get the liquid inside it to go down.
What happens if you shake the thermometer?
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. In effect, you are making the glass accelerate so fast that it leaves the mercury behind.
How far do you shake down a thermometer?
Gently push the tip into the rectum, going about 0.5 to 1 inch (1.3 to 2.5 cm) in. Never force it in if it feels blocked. Hold the thermometer in place the whole time you’re taking the reading, as you don’t want to go deeper into their body. Hold the baby or child still so that the thermometer doesn’t break.
Do you need to shake a digital thermometer?
Digital thermometers do not have to be shaken to bring down the temperature. Glass thermometers need to be brought back to a low temperature, and this is usually done by shaking the thermometer.
How do you shake down a non mercury thermometer?
This thermometer is far more accurate than digitals, and it does not easily break. Don’t use the sock trick, you just need to hold this at the end of the tube and flick your wrist with a downward motion for about ten seconds. It will shake down just fine.
Why a clinical thermometer is shaken for a few times before use?
The jerks given to the thermometer before using it in order to get an accurate reading, the jerks allow the mercury level to flow into the bulb, below from the normal temperature.
Why are clinical thermometers shaken?
The thermometer are shook before checking the temperature levels, so that the mercury comes back to its initial point i.e. where it had been before the temperature was taken, thus the given statement is true.
How do you know if thermometer is broken?
Pour cold water into the glass right up to the brim, then stir it for 15 seconds. Insert your thermometer into the water without touching the sides of the glass. After 30 seconds, your thermometer should read 32° F. If it doesn’t, it may need to be replaced or recalibrated.
How do I use my geratherm mercury free thermometer?
Grasp top of thermometer and shake with a snapping motion of the wrist. Repeat until line is well below 98. 6 Degrees f (37 degrees c). Place thermometer under the tongue for a minimum of 3 minutes.
Do you have to shake a mercury free thermometer?
Why do we jerk thermometer?
The jerks applied to the thermometer before use in order to obtain an accurate reading allow the mercury level to flow into the bulb below the normal temperature.
Can thermometers go bad?
Do Thermometers Expire? 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.
What is a kink in a thermometer?
It is a special type of liquid in glass thermometers. Kink, it is used to break the mercury in the glass tube and stores the reading of the thermometer by its contraction. It helps the user to measure its correct body temperature or we can call it as the correct reading in the thermometer.
Why is it advised not to hold the thermometer by its bulb?
It is advised not to hold the thermometer by its bulb while reading it because if we hold a thermometer by its bulb, the mercury in the bulb will expand due to our body temperature and effect the actual reading.
Why is my thermometer reading different each time?
Basal thermometers can measure small changes in your temperature. If you measure several times in a row, your body’s temperature will naturally rise (and sometimes fall), so the first temperature reading will be different than the next reading.