<![CDATA[Background: Patients with diabetes mellitus who undergo surgery under general anesthesia of hemodynamic instability, particularly intraoperative blood pressure changes, preoperative fasting blood sugar levels are a metabolic indicator that has the potential to affect blood pressure stability during general anesthesia, but the scientific evidence examining the relationship between the two variable is limited. Methods: This study used a correlational quantitative design with a cross-sectional approach. The sample amounted to 30 patients with diabetes mellitus who underwent surgery under general anesthesia, selected using consecutive sampling techniques. Data analysis was carried out using the Spearmen Rho correlation test. Results: Most of the respondents were female (56.7%), aged 36–50 years (60%), and had ASA II physical status (73.3%). The highest fasting blood sugar levels were in the normal category (11 patients), followed by prediabetes and hyperglycemia. Intraoperative blood pressure was predominantly in the normal category (17 patients). There was a significant relationship between fasting blood sugar levels and intraoperative blood pressure, with a value of p = 0.001 (p < 0.05) and a correlation coefficient of 0.639 (strong relationship, positive), all patients with hyperglycemia had intraoperative hypertension (100%). Conclusion: The higher the fasting blood sugar level, the greater the tendency to increase intraoperative blood pressure in general anesthesia patients with diabetes mellitus at PKU Muhammadiyah Yogyakarta Hospital.]]>
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