Edith Cowan University

Research Online Theses : Honours

Theses

1990

Optimal Axillary Thermometer Placement Time For Recording Neonatal Temperature Athalie Johnston Edith Cowan University

Since body temperature is a reflection of neonatal wellbeing, taking and recording an accurate temperature is an important nursing role. Research has shown that axillary temperature adequately reflects core body temperature and is the recommended site for neonates. However, researchers have been unable to agree on the length of thermometer placement time to record an accurate axillary temperature. The purpose of this study was to determine the optimal thermometer placement time to record the maximum axillary temperature in newborn infants using a descriptive correlational design. Axillary temperatures were taken using a convenience sample of 100 healthy, term neonates between 38 and 42 weeks gestation, weighing greater than 2500 grams and who had been uncompromised during delivery. The same mercury in glass thermometer, which had been tested for accuracy, was held in the axilla of each neonate. Recordings were taken every minute until the mercury in the thermometer had been stable for 5 minutes. Data analysis revealed that in 901 of subjects the thermometer stabilised in 6 minutes. Other data recorded were gestational age, birthweight, type of delivery, age in hours, number of extra blankets, sex and time of data collection. These variables were analysed in conjunction with the time for ther1110meter stabilisation to detect any significant relationship. Significance level was set at α=.05. No significant relationships were detected between thermometer stabilisation time and the extraneous variables. The results of this study indicate that the optimal thermometer placement time for recording an accurate axillary temperature in a healthy, term neonatal is 6 minutes. Recommended Citation Johnston, A. (1990). Optimal Axillary Thermometer Placement Time For Recording Neonatal Temperature. Retrieved from http://ro.ecu.edu.au/theses_hons/217

This Thesis is posted at Research Online. http://ro.ecu.edu.au/theses_hons/217

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WESTERN AUSTRALIAN COLLEGE OF ADVANCED EDUCATION

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shown

thi! most. common auatomtcnl :sHes for temperature measurement are the mouth, axilla and the rectu1P {2oft, Meier ilnd !Hller, 1974>.

Although

oral temporature measurement. is the mac;t common method used for udults it is seldom used for children commonly used Rectal

for

temperature

temperature.

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5 y>:1ars of uge.

yonn!?,er children ilr and Blis·;-Holtz - - - - - - - - - - - -)WORKAL TBJIPBRATURB RllGB(--- --- __._ - 1 36;..P°C to 37°C : ~ ' '..._ ,... ,...,.... I

' HEAT LOSS -convection - radiation - evaponticn · conduction

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HEAT GAIN - overheated isolettes - crying &restlessnes - over~rapping - dehydration

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... INFECTION ~ '

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OVERHEATING I I

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BODY FLEXION VASOCONSTR[CTION NON SHIVERING THERMOGENESIS (utilisation of BAT)

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Figure 1:

Neonatal Temperature Control. 8

subcutaneous fat,

thin epidermis with blood vessels closer to the

skin than adults and brown adipose tissue approximately 28 weeks gestation and, continues to increase until deposited around tbe neck,

s~rnational

Journal

of

Nursing

Studies, 2.Q.(2), 89-96.

Giuffre,

M.,

Heidenreich,

Heidenreich, E.

(1990>.

T.,

Garney-Gersten,

P.,

Dorsch,

J.A.

and

The relationship between axillary and core

body temperature measurements.

Applied Nursing Researr:::h., 3_12), 52-

55.

40

Greenbaum,