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Oral Temperature Measurement with an Electronic Monitor

Written by Amanda R. McDaniel, MS, BSN, RN
Amanda is a BSN/RN with a MS in Physiology and a BA in English. She worked as a medical writer in the pharmaceutical industry for 11 years before pursuing a career in nursing. She now works as a nurse on a NeuroTelemetry unit and continues to write and edit on a freelance basis. Amanda’s LinkedIn

Body temperature is one of the vital signs frequently measured in healthcare settings. Changes in a body temperature can indicate improvement or worsening of a patient’s condition, so accurate measurement is important. Oral (also known as sublingual) temperature measurement using an electronic monitor is a convenient and accurate method of assessment. It is quick, typically 20 to 30 seconds, and does not require the patient to change position. Oral temperatures are appropriate for most patients; however, patients who cannot breathe through their nose or cannot hold their mouth closed for the duration of the assessment for any reason should have their temperature taken via another route (axillary, tympanic, rectal, etc.).

Obtaining Oral Temperature with an Electronic Monitor

  1. Gather your supplies. These include:
    • Gloves
    • Thermometer
    • Thermometer probe covers
  2. Perform hand hygiene and don gloves (per institutional policy).
  3. Ask the patient if they have had anything to drink or eat in the past 15 minutes or whether they have smoked in the last 2 minutes (food, drink, and smoking can alter the temperature of the oral cavity).
  4. Turn the thermometer on and slide a disposable probe cover over the probe stem until the cover äóìclicksäó into place.
    • Check that you are using the correct probe. Typically, blue indicates that the probe is for oral and/or axillary temperatures while red indicates that the probe is used for rectal temperatures.
  5. Ask the patient to open his mouth and gently place the tip of the probe under the tongue in the posterior portion of the mouth. If needed, press the äóìStartäó button on the thermometer.
  6. Ask the patient to close his mouth around the probe and keep the tip of the probe under his tongue.
  7. The probe should stay in place until the monitor audibly signals (beeps) that the measurement has completed and the final measurement is shown on the display.
  8. Gently remove the probe from the patient’s mouth, then press the ejection button on the probe to remove the probe cover. Discard the probe cover and place probe back in storage position.
  9. Remove gloves and perform hand hygiene.
  10. Document the temperature in the patient’s record and inform the nurse of any significant change from previous temperature per institutional or unit protocol.
  11. Disinfect the thermometer and return it to the storage or charging location per institutional or unit protocol.

Amanda R. McDaniel, MS, BSN, RN

References

Fetzer, S. J. (2014). Vital signs and physical assessment. In A. G. Perry, P. A. Potter, and W. R. Ostendorf (Eds), Clinical nursing skills & techniques (8th ed., pp. 67-72). St. Louis, MO: Mosby Elsevier.

General Survey, measurement, vital signs. (2012). In C. Jarvis (Ed.), Physical examination & health assessment (6th ed., pp. 132-133). St. Louis, MO: Elsevier Saunders.

More Resources

Making an Occupied Bed

If a patient is bedridden or on bedrest, the bed linens will need to be changed while the patient is in the bed. For safety reasons, the nurse’s aid should avoid making an occupied bed if the patient is able to get out of bed. Bed linens should be changed according to the facility’s policy or anytime they are wet or soiled.

Tympanic Membrane Temperature with Electronic Thermometer

A tympanic membrane thermometer uses an infrared sensor to measure the temperature of the tympanic membrane (ear drum). This type of thermometer is considered an accurate and reliable predictor of a patient’s core temperature because the tympanic membrane’s blood supply is sourced from the carotid artery, which is the same artery that carries blood to the hypothalamus in the brain.

Orthopneic Position

Patients with respiratory illnesses such as chronic obstructive pulmonary disease (COPD) find ways to help themselves breathe more easily. This can include sleeping with extra pillows to keep them propped up or leaning forward to ease the work of breathing. The orthopneic position is one forward-leaning position used to help patients breathe comfortably when they are having difficulty.

Dressing and Undressing a Patient

Patients who have suffered a stroke or have weakness or injury to one side of their body may struggle with dressing and undressing. In order to help these patients regain their strength and independence, it is important that the nurse’s aide only assist them as needed. The nurse’s aide may need to teach patients how to dress and undress safely with their limitations.

Removing Personal Protective Equipment

It is important to follow the correct procedure while removing personal protective equipment to avoid contaminating your skin or clothing. The most common source of contamination in this process stems from improper removal of gloves. Gloves are often the most soiled piece of equipment. To avoid contaminating your skin or the other equipment worn, gloves should always be removed first. Then remove the goggles, gown, and mask, in that order.

Performing the Heimlich Maneuver

The Heimlich Maneuver, also known as abdominal thrusts, is used to remove an object that is blocking a resident’s airway and preventing air from reaching the lungs. It only takes four to six minutes for brain damage to occur from lack of oxygen, so prompt action is vital.

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