Final answer:
Newborn screening can be rejected due to improper sample collection, lab errors, inadequate quality control, and technical issues.
Step-by-step explanation:
Newborn screening can be rendered unusable and rejected for several reasons:
- Improper sample collection: If the blood sample is not collected correctly, it may not provide accurate results. For example, if the blood is contaminated during collection, it can lead to false positives or false negatives.
- Lab errors: Errors can occur during sample processing and analysis, which can result in incorrect test results.
- Inadequate quality control: Laboratories must maintain strict quality control measures to ensure accurate and reliable test results. If these measures are not followed, the screening might be deemed unusable.
- Technical issues: Problems with the equipment or software used in the screening process can also make the results unreliable.
It is important to have proper protocols and quality control measures in place to ensure the effectiveness of newborn screening.