Which tests require protection from light during transport, and what is a common practice to ensure protection?

Which tests require protection from light during transport, and what is a common practice to ensure protection?

• A. Bilirubin tests; protect with amber tubes or wrapping to block light
• B. Bilirubin tests; transport in clear containers without protection
• C. Glucose tests; require amber tubes
• D. Lipid panels; no light protection needed

Answer: (A)

Bilirubin samples are sensitive to light; exposure to light can photodegrade bilirubin and cause falsely low results. To prevent this, samples must be protected from light during transport and handling. A common, practical approach is to use amber-colored tubes or wrap the sample in aluminum foil, or place it in a light-blocking container, so the wavelengths that trigger degradation are blocked. This protection helps ensure the bilirubin result reflects the true level rather than being distorted by light exposure. Glucose and lipid panels aren’t typically affected by light in routine practice, so they don’t require this kind of light protection.

Bilirubin samples are sensitive to light; exposure to light can photodegrade bilirubin and cause falsely low results. To prevent this, samples must be protected from light during transport and handling. A common, practical approach is to use amber-colored tubes or wrap the sample in aluminum foil, or place it in a light-blocking container, so the wavelengths that trigger degradation are blocked. This protection helps ensure the bilirubin result reflects the true level rather than being distorted by light exposure. Glucose and lipid panels aren’t typically affected by light in routine practice, so they don’t require this kind of light protection.