Nursing & Healthcare Programs

Rectal Temperature with Electronic Thermometer

Written by Hollie Finders, RN
Hollie Finders is a registered nurse with years of experience working in the health care field. She has degrees in both biochemistry and nursing. After working with patients of all ages, Hollie now specializes in pediatric intensive care nursing. Hollie’s LinkedIn

Procedure

Equipment needed: rectal thermometer, disposable probe cover, lubricant, tissue, and gloves

  1. Perform hand hygiene and put on gloves.
  2. Explain the procedure to the patient and ask for their assistance in following directions.
  3. Raise the side rail on the patient’s left side for safety. If the bed can be raised, adjust it to a comfortable working height.
  4. Assist the patient into Sims’ position (left side lying).
  5. Adjust the linens to expose only the buttocks.
  6. Apply a disposable cover to the temperature probe. Be sure the probe cover is secure and locked into place.
  7. Apply an adequate amount of lubricant to the probe cover. Ensure the tip and 1-2 inches of the probe is lubricated.
  8. Using one hand, separate the buttocks to expose the anus.
  9. With the other hand, insert the lubricated probe 1-1.5 inches into the rectum in the direction of the umbilicus. If there is any resistance, stop the procedure immediately, withdraw the probe carefully, and notify the medical professional. Do not force the probe into the rectum.
  10. Hold the probe in place until the thermometer signals completion (depending on the device, it may flash or beep). Read the temperature on the electronic display screen.
  11. Gently remove the probe and eject the disposable probe cover into the waste bin.
  12. Use a tissue to wipe away any excess lubricant or feces found around the patient’s anus. Dispose of the tissue in the proper waste receptacle.
  13. Assist the patient back into a comfortable position and, if raised, return the bed to the lowest setting.
  14. Return the thermometer to its base unit.
  15. Remove gloves and perform hand hygiene.
  16. Record temperature, method used (rectal), date, and time in the patient’s chart.
  17. Alert the medical professional of any changes in the patient’s condition.

Important Information

A rectal temperature provides the most accurate core body temperature reading compared to other non-invasive methods [1]. This makes a rectal temperature desirable; however, this procedure comes with more patient discomfort and more safety risks (bowel perforation, mucosal damage, and/or vagus nerve stimulation) than the other temperature measurement methods [2]. In order to avoid these risks, the nurse’s assistant must communicate with the patient throughout the procedure, encouraging him or her to relax, take deep breaths, and remain still.

Prior to performing a rectal temperature, the nurse’s assistant should verify with the nurse that the patient does not have any of the following contraindications: diarrhea, hemorrhoids, rectal bleeding, rectal disease, recent rectal surgery, bleeding tendencies, neutropenia, or certain heart conditions [3].

References

1. https://www.ncbi.nlm.nih.gov/pubmed/7663592

2. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3440892

3. https://www.guideline.gov/summaries/summary/36842L

More Resources

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Feeding the Patient

Not all patients will need help feeding themselves. Some patients will only need assistance opening cartons or cutting their food. To promote independence, always let the patient do as much as he or she can before assisting. It is vitally important that the nurse’s aide verifies that the patient receives the correct meal tray. Patients may have special diets that play a critical role in their health (i.e., pureed diet, gluten-free diet, food allergies, etc.). Feeding the wrong food to the wrong patient could result in serious complications.

Sim’s Position

The position a patient is placed in is often ordered by the physician, or recommended by a speech, occupational, or physical therapist. The position dictates whether a patient is sitting, lying, standing; or if they are on their side, back, or prone (face-down). Positioning is also determined by the patient’s current needs, such as: Are they eating? Sleeping? Having surgery on their back? Are they receiving nutrition through a nasogastric tube?

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Fowler’s Position

Fowler’s position is used when a patient is eating, is having difficulty breathing, or is ordered by a doctor. This position is easily recognized because the patient will be sitting “straight up.” Semi-Fowler’s is sitting “half-way up,” and is used when patients cannot be laid flat, but wish to be in a more relaxed position than Fowler’s.

Measuring the Apical Pulse

The apical pulse rate is the most accurate non-invasive measurement of heart rate because it is measured directly over the apex of the heart. Apical pulse is preferred in cases when the radial pulse is difficult to palpate, when the pulse is irregular, greater than 100 beats per minute, or less than 60 beats per minute when measured by other means (electronic, radial, etc.).