Final answer:
B) Blood culture. According to CLSI order of draw guidelines, the phlebotomist should collect blood cultures first when collecting multiple samples. The correct order is: B) Blood culture, A) Coagulation, C) Electrolytes, D) Glucose levels.
Step-by-step explanation:
According to CLSI (Clinical Laboratory Standards Institute) order of draw guidelines, the phlebotomist should collect blood cultures first when collecting multiple samples. This is to avoid contamination of other samples with potential bacteria from the blood culture sample. Therefore, the correct answer is B) Blood culture.
Following the order of draw, the phlebotomist should then collect coagulation samples, followed by electrolytes, and glucose levels. This order is important to ensure accurate test results and minimize the risk of cross-contamination.