ALB and acute kidney injury: Patients who developed CA-AKI exhibited lower hemoglobin, lower lymphocyte count, lower triglycerides, lower sodium, and lower serum albumin levels, along with higher inflammatory and metabolic markers, including WBC, CRP, CAR, NLR, PLR, plasma glucose, serum uric acid, blood urea nitrogen and contrast/eGFR ratio (all p < 0.001).