Listening Quiz: Xử Lý Mẫu Nước Tiểu Cũ – Easy Level

1. How old was the urine sample Sarah and Michael discussed?
2. Why is the urine sample considered a problem for testing?
3. Why does Michael say, “We should note this pre-analytical issue”?
4. What can be inferred about the quality of the sample?
5. What will Sarah do next?

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