Introduction: Endocrinological emergencies such as DKA are known for hyperglycemia, ketone bodies, and metabolic acidosis in the blood and urine. It rarely occurs in type 2 DM patients. ABG and VBG are biochemical parameters used in its research. Objective: To evaluate the efficacy of VBG against ABG in DKA patients. Methodology: Details on DM type, duration, antidiabetic drug and insulin usage, and past DKA hospitalizations were collected. A complete blood count, ESR, RFT, electrolyte levels (sodium, potassium, calcium, and phosphate), LFT, RBS, UT, ABG, VBGA, microscopy, chest X-ray, ECG, abdominal and pelvic ultrasound are recommended. Result and Conclusion: We discovered that the majority of patients pH levels were in the 7.00-7.25 range in both AB and VB (48.7% and 46.1%, respectively) and that the majority of patients' \(HCO_{3}\) levels were above 15 in both AB and VB (56.6% and 64.5%, respectively). Thus, we found that VBG analysis parameters were similar to ABG analysis parameters. The blood gas analysis parameters pH and \(pHCO_{3}\) exhibited the strongest linear correlation when comparing arterial and venous samples.