The Order of Draw and Rationale of Blood Collection Tubes: A Review of Guidelines and Pre-Analytical Considerations
Accurate blood collection is an important step in patient care because most diagnoses depend on lab tests (WHO, 2010). Errors made before analysis, the “pre-analytical phase”, cause up to 70% of laboratory mistakes (Njoroge and Nichols, 2014; Dagher et al., 2019). Tubes used in venipuncture contain additives that directly influence the blood sample […]
