Özet:

Sample collection errors, in which the human factor plays an active role, depends on the experience and personal characteristics of the blood drawing person. This study aimed at investigating blood collection errors and to compare the rates of pre-analytical errors in blood samples of outpatients and inpatients in our hospital. Material and Methods: Pre-analytical errors were determined by examining rejected samples from the Laboratory Information System records for a period of 10 months. The samples were separated into working groups and pre-analytical error groups. The daily number of sampling procedures was calculated for each nurse working in the blood collection unit. Results: The total rate of rejected samples was 0.2% in outpatients and 1.23% in inpatients (P = 0,000). Nurses working in the blood collection unit drew about 200 blood samples each per day. Clotted samples and insufficient volume were the most often found causes for rejection of samples. The most preanalytical errors can be reduced by appropriate training of phlebotomists and nurses. Practical blood draw training can be included in the training program of nurses new starting to work in the hospital. The reduction of preanalytical errors will contribute to patient safety.

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