Misuk Hong; Haesang Yoon

doi:10.4040/jkan.2011.41.2.157

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Original Article
Influence of Pre-operative Fasting Time on Blood Glucose in Older Patients: Misuk Hong, Haesang Yoon; Journal of Korean Academy of Nursing 2011;41(2):157-164.
DOI: https://doi.org/10.4040/jkan.2011.41.2.157
Published online: April 30, 2011

¹Nurse Anesthetist, Seoul National University Dental Hospital, Seoul, Korea.

²Professor, Department of Nursing, Gachon University of Medicine & Science, Incheon, Korea.

Address reprint requests to: Yoon, Haesang. Department of Nursing, Gachon University of Medicine & Science, 534-2 Yeonsu-dong, Yeonsu-gu, Incheon 406-812, Korea. Tel: +82-32-820-4212, FAX: +82-32-820-4201, hsyoon@gachon.ac.kr

• Received: February 4, 2010 • Accepted: April 15, 2011

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Abstract
NOTES
REFERENCES

Abstract

Purpose
This study was performed to identify changes in blood glucose at preoperative fasting time in surgical patients over 60 yr.
Methods
Data collection was performed from July, 2008 through July, 2009. Participants consisted of 80 nondiabetic surgical patients. Blood glucose was checked from 3 to 5 times. The 5 times were 2-hr fasting on the pre-operative day (T1, n=80), 8 hr (T2, n=80), 10 hr (T3, n=17), 12 hr (T4, n=34) and 14 hr fasting on the day of the operation (T5, n=29).
Results
Of the patients, 27.5% had a blood glucose level of less than 79 mg/dL at T2; 17.6% at T3; 32.4% at T4; and 17.2% at T5. Mean blood glucose levels were 93.8 mg/dL at T1; 88.4 mg/dL at T2; 91.7 mg/dL at T3; 87.4 mg/dL at T4: and 94.1 mg/dL at T5. Blood glucose was the lowest at T2 (p<.001).
Conclusion
As 17.6-32.4% of the patients showed the blood glucose level of less than 79 mg/dL at 8-14 hr pre-operative fasting, the authors recommend that surgical patients >60 yr-of-age be observed for hypoglycemia during pre-operative fasting of more than 10 hr and that surgical patients >60 yr-of-age with risks for hypoglycemia be scheduled for operation within 10 hr preoperative fasting.
Keywords: Fasting; Blood glucose

This article is a revision of the first author's master's thesis from Gachon University of Medicine & Science.

REFERENCES

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Figure 1

Research design.

OP=operative; X=Blood sampling for blood glucose.

Table 1

Physiological Characteristics (N=80)

^*Fisher's exact test; BMI=body mass index; Blood Glucose=on 2 hours fasting on pre-operative 1 day; SCCa=squamous cell carcinoma.

Table 2

Comparison of Blood Glucose by Pre-operative Fasting Time (N=80)

A=10 hr fasting group; B=12 hr fasting group; C=14 hr fasting group; pre-OP=preoperative; OP=operative.

^*p<.05; ^**p<.01; ^†Comparison of blood glucose between 2 hr fasting on pre OP 1 day and 8 hr fasted on OP day; M=male; F=female; ^‡Mean of blood glucose at 10 hr, 12 hr, and 14 hr pre-operatve fasting on operative day.

Table 3

Comparison of Blood Glucose by Gender

^*p<.05; ^***p<.001; ^†Comparison of blood glucose between 2 hr fasting on pre OP 1 day and 8 hr fasted on OP day; ^‡Comparison of Glucose between 8 hr fasting on OP day and 12 hr fasting on OP day.

pre-OP=preoperative; OP=operative; M=male; F=female.

Table 4

Correlation among Age, BMI, Hemoglobin, Hematocrit, Albumin and Blood Glucose during Pre-operative Fasting (N=80)

BMI=body mass index; OP=operative.

Figure & Data

REFERENCES

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Influence of Pre-operative Fasting Time on Blood Glucose in Older Patients

J Korean Acad Nurs. 2011;41(2):157-164. Published online April 30, 2011

DOI: https://doi.org/10.4040/jkan.2011.41.2.157

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Influence of Pre-operative Fasting Time on Blood Glucose in Older Patients

Figure 1 Research design. OP=operative; X=Blood sampling for blood glucose.

Figure 1

Influence of Pre-operative Fasting Time on Blood Glucose in Older Patients

Table 1

Physiological Characteristics (N=80)

^*Fisher's exact test; BMI=body mass index; Blood Glucose=on 2 hours fasting on pre-operative 1 day; SCCa=squamous cell carcinoma.

Table 2

Comparison of Blood Glucose by Pre-operative Fasting Time (N=80)

A=10 hr fasting group; B=12 hr fasting group; C=14 hr fasting group; pre-OP=preoperative; OP=operative.

Table 3

Comparison of Blood Glucose by Gender

pre-OP=preoperative; OP=operative; M=male; F=female.

Table 4

Correlation among Age, BMI, Hemoglobin, Hematocrit, Albumin and Blood Glucose during Pre-operative Fasting (N=80)

BMI=body mass index; OP=operative.

Table 1 Physiological Characteristics (N=80)

^*Fisher's exact test; BMI=body mass index; Blood Glucose=on 2 hours fasting on pre-operative 1 day; SCCa=squamous cell carcinoma.

Table 2 Comparison of Blood Glucose by Pre-operative Fasting Time (N=80)

A=10 hr fasting group; B=12 hr fasting group; C=14 hr fasting group; pre-OP=preoperative; OP=operative.

Table 3 Comparison of Blood Glucose by Gender

pre-OP=preoperative; OP=operative; M=male; F=female.

Table 4 Correlation among Age, BMI, Hemoglobin, Hematocrit, Albumin and Blood Glucose during Pre-operative Fasting (N=80)