| چکیده انگلیسی مقاله | Background: We aimed to enhance the quality of cancer care by reducing the rate of sample rejection and lowering the incidence of sample mislabeling at the Sultan Qaboos Comprehensive Cancer Care and Research Centre in Muscat, Oman. Methods: We adopted a one-group pretest-posttest quasi-experimental design from the second quarter of 2022 to the first quarter of 2023, assessing key performance indicators related to sample rejection and mislabeling on quarterly basis before and after implementing targeted interventions. The project utilized the FOCUS PDCA framework for systematic implementation and evaluation. Four FOCUS PDCA sessions were conducted involving a multidisciplinary team of ten participants comprising oncologists, nurses, laboratory technicians, quality management experts, and informatics and cyber security department staff. Ethical clearance was obtained from the Institutional Review Board, ensuring adherence to ethical protocols. Interventions included five educational sessions for nurses and physicians, process modifications, and improved communication protocols. Results: Analysis revealed a significant decrease in the rate of rejected samples, declining from 20.85% during Pre-Intervention to 6.05% in the Post Intervention phase. Similarly, the mislabeling rate exhibited a substantial reduction, decreasing from 1.68% to 0.25% over the same period. Statistical analysis using ANOVA confirmed significant differences between intervention phases for both the rejected samples rate (F-value = 12.3458, P-value = 0.002) and the mislabeling rate (F-value = 57.1875, P-value < 0.001). Conclusion: These results underscored the effectiveness of the interventions in improving blood sample collection and management processes, thereby enhancing the reliability of study outcomes. | 
                
 				| نویسندگان مقاله | | Sara AlSheidi Nursing Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Omar Ayaad
 Quality and Accreditation Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Rawan Ibrahim
 Quality and Accreditation Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Salim Nasser AlDhahli
 Nursing Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Mohamad Majed
 Quality and Accreditation Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Haitham Mahfoodh AlWaheibi
 Informatics and Cyber Security Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Razzan Othman Abdullah Al Zadjali
 Quality and Accreditation Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Ossayed Al Awor
 Laboratory Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Balaqis Hamed Sulaiman Al Faliti
 Quality and Accreditation Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Anjum Osman
 Center In Charge, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Huda Shinoon AlAwaisi
 Nursing Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Abdulhamid Mustafa A Turkomani
 Informatics and Cyber Security Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Ibrahim Hassan Al Haddabi
 Laboratory Department, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 | Khalid Al Baimani
 Center In Charge, Sultan Qaboos Comprehensive Cancer Care and Research Centre (SQCCCRC), University Medical City, Muscat, Oman
 
 
 
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