A 58-year-old woman attends for an NHS Health Check. She has no significant past medical history. Her BMI is 32 kg/m², and her blood pressure is 145/92 mmHg. Her non-fasting cholesterol is 6.1 mmol/L. Her calculated QRISK3 score is 12%. According to NICE guidelines on cardiovascular disease risk assessment and reduction, what is the most appropriate initial management step regarding her cardiovascular risk?