Other contraindications include: a client with a bleeding disorder or with a rectal abnormality or post rectal surgery. Rectal temperature is not measured in infants under one month of age or premature newborns. The Canadian Pediatric Society (Leduc & Woods, 2017) has referred to research indicating that rectal temperatures may remain elevated after a client’s core temperature has started to return to normal, but after reviewing all available evidence, still recommends measuring rectal temperature for children under the age of two, particularly when accuracy is vital. Some suggest its use only when other methods are not available (OER #1), while others suggest that the rectal route is a gold standard in the infant population because of its accuracy particularly in acute situations when the client is unstable. Measuring rectal temperature is an invasive method. What should the healthcare provider consider? In pediatrics, devices usually have a mark on the probe which indicates how deep to insert the probe. changes in the rectal temperature (gold standard) was slightly better han the tympamc wIth r values of 088 and 0.77, respectively. Lubricate the cover with a water-based lubricant, and then gently insert the probe 2–3 cm inside the rectal opening of an adult, or less depending on the size of the client. Remove the probe from the device and place a probe cover (from the box) on the thermometer. However, according to a 2020 study, forehead thermometers are less accurate than other methods of reading temperature, such as oral, rectal, or tympanic (ear) temperature readings. Also, there is a risk of cross-contamination and risk of damaging the rectum. A rectal thermometer is shown in Figure 2.7.
A rectal thermometer has a red end to distinguish it from an oral/axillary thermometer. Rectal temperatures often lag significantly behind internal body temperature changes. The normal rectal temperature is usually 1C higher than oral temperature (OER 1). With older children and adults, assist them into a side lying position. Oral temperatures are often influenced by eating, drinking, thermometer placement, breathing through the mouth, or the inability of the person to close their mouth completely. You can encourage a parent to hold the infant to decrease movement and provide a sense of safety. Match the temperature variations that are considered normal. For infants, lie them down in a supine position and raise their legs up toward the chest. sterilizing (autoclave) Match the temperature conversion and comparison (Celsius vs.
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