What is the general rule for transporting samples to external laboratories?

• A. Keep samples cool if required, seal, label, and use appropriate preservative; ensure transport within recommended time
• B. Keep at room temperature and unlabeled
• C. Freeze all samples regardless of preservative
• D. Transport without packaging

Answer: (A)

Maintaining sample integrity during transport requires temperature control when needed, secure packaging, proper labeling, appropriate preservatives, and timely delivery to the lab. Keeping samples cool if required helps preserve analytes and prevent degradation; sealing prevents leaks and contamination; labeling provides essential identification and handling information; choosing the right preservative stabilizes the sample for the intended tests; and delivering within the lab’s recommended timeframe minimizes changes that can affect results. When these elements are addressed together, the sample arrives in a condition suitable for accurate analysis. Transporting at room temperature without labeling risks degradation and misidentification, freezing all samples regardless of preservative can distort or invalidate some analyses, and transporting without packaging creates leaks and biosafety concerns.