Introduction: Malnutrition is a frequent complication in cancer patients and can negatively affect treatment outcome. Preliminary audit conducted at the Oncology Clinic, National Cancer Institute (NCI), found that only 5.8% of outpatients underwent nutrition screening using the Malnutrition Screening Tool (MST), and only 2.6% of dietitian referrals were recorded. This audit aims to determine the rate of adherence to nutritional screening, and to implement remedial measures for improved patient care. Methods: This was a cross-sectional audit comprising three phases, namely initial audit, remedial measures and re-audit. Criteria audited include screening rate using MST and dietitian referral based on MST scores. Standards were set at 100% for both criteria. Data collected for initial audit were patients’ MST scores records and total dietitian referral forms retrieved from Electronic Medical Records. After initial audit, self-administered questionnaires for nurses and physicians were developed to identify barriers. Measures implemented for change included patientadministered MST to shorten screening time, and procedure flowchart to facilitate referral. After 6 months, a re-audit was conducted. Results: Total subjects for initial audit and re-audit were 349 and 390, respectively. Initial audit and re-audit showed screening rate using MST increased significantly from 6.3% to 79.5%, but there was no significant change for the dietitian referral rate. Conclusion: This clinical audit has led to a change in the policy in NCI outpatient clinics whereby nurses directly schedule dietitian referrals without going through physicians for patients with MST scores ≥2. Continuous audit and monitoring are necessary to facilitate improvement in MST implementation for better outpatient care.