How to Read a Mercury Thermometer?
Accurate body temperature readings can make a difference in treatment decisions. Reading a mercury thermometer is easy but require a bit of practice and skill.

Before Reading a Glass Mercury Thermometer

Because different models may have slightly different reading methods, one should first read manufacturer’s directions which comes with all mercury thermometers. The following are general guidelines for most of the mercury glass thermometers:

  • Standard precautions like washing hands and wearing gloves if appropriate.
  • Handle with care to prevent thermometer from chipping or breaking.
  • Remove the probe cover and/or wipe the thermometer with a dry tissue from stem to bulb. Do not use an alcohol    swab before reading the temperature reading.
  • Remove cover. Wipe the thermometer with a dry tissue from stem to bulb. Do not use alcohol swab before reading    the temperature.
  • Hold the thermometer at eye level and parallel to the floor.

  • How to Read a Mercury Glass Thermometer?
    Reading a Mercury Glass Thermometer properly is essential, both at home and hospital. Accurate checking of body temperature is vital for determining course of treatment or medication. One should read mercury thermometer immediately after taking the temperature. The temperature should be read to the closest line.

    - In a Fahrenheit thermometer:
    * Long lines indicate 1 degree.
    * Short lines indicate 0.2 degree.

    - While in a Celsius thermometer:
    * Long lines indicate 1 degree or 0.5 degree.
    * Short lines indicate 0.1 degree.

    Most of the mercury thermometer, though, have dual scales.

    One should be careful while reading temperatures between 100 degrees and 101 degrees, because many people mistakenly record or report the tenth of a degree as a whole degree. For example, 100.2 degrees is between 100 and 101 while 102 degrees is between 102 and 103. Avoid mistakes as it could result in inappropriate therapy.

  • Read Mercury Thermometer at Eye level
  • Long lines on Fahrenheit scale indicate 1 degree
  • Short lines on Fahrenheit scale indicate 0.2 degree
  • Read Celsius scale to nearest 0.1 degree
  • Read temperature to nearest lines
  • After taking the temperature, hold the thermometer up to a light where you can see the mercury line and the    numbers
  • Rotate the thermometer until you can clearly see the number and the lines between the numbers, much like on a    ruler
  • The point where the mercury ends is what the temperature is
  • How to Check a Temperature Under the Tongue (Orally)?
    Shake down the mercury in a glass thermometer before placing it under the tongue. Do this by holding the thermometer firmly and flicking the wrist until the mercury reads at or below the lowest number. Ensure thermometer is away from people and objects before shaking. Now, place the bulb end of the thermometer under the tongue and ask the person to close his mouth and breathe through his nose. The thermometer must stay under the tongue for at least a minute to 2 minutes.

    When an Oral Temperature should not be taken?
    Avoid measuring body temperature under the tongue if the person is:
    - Infant or child (under the age of 6)
    - injured or bleeding orally/has pain and/or sores in the mouth
    - unable to close the lips or had surgery in the mouth recently
    - experiencing chills or rigors or if her teeth are chattering
    - having difficulty in breathing or receiving oxygen via a mask
    - using a nasogastric tube for feedings
    - unable to take commands, confused, combative, or uncooperative
    - unconscious or not responsive or on seizure precautions



    Thermometer Clinical, Prismatic, Dual Scale, Economy model. Watch Video

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    Thermometer Clinical, Flat, Dual Scale, Extra Large Size.

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    Thermometer Rectal

    Details: Compact, easy to hold and the short probe helps guard against over insertion.The Rectal Thermometer is designed specifically for measuring rectal temperatures. Storage case included.

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    DP20 - Mercury Basal Thermometer (°F)

    Note : Basal thermometers are different from regular fever thermometers and used only by WOMEN to note basal body temperature that occurs with ovulation.

    NET Basal Mercury Thermometer is an accurate device to chart basal body temperature of women to predict their fertile period or ovulation (three days). Basal thermometer, thus, helps women determine when they ovulate and thereby dramatically increase chances of conceiving and falling pregnant. By this way they can plan either to conceive or take precaution.
    »A woman is susceptible to conceive during 3 days of ovulation and NET Basal Mercury Thermometer can indicate these days.
    »With ovulation body temperature increases due to increase in hormone progesterone and by precise recording of your body's resting temperature first thing in the morning and at the same time each morning, you can know when ovulation takes place in your cycle.
    »Made from high quality capillary tubing with lens front in Jena normal glass.
    »Suitable for oral (sub-lingual) and rectal use.
    Temperature Range:
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