Difficulty: Easy

Average Score: 83%

A phlebotomist is performing a heel stick for a newborn screening. Which of the following actions demonstrates proper specimen collection?

Rationale

The phlebotomist completely fills the circles on the filter paper.

Proper specimen collection during a heel stick for newborn screening requires filling the designated circles on the filter paper to ensure a sufficient blood sample for accurate testing.

A (The phlebotomist applies blood to both sides of the filter paper.) YOUR ANSWER

Applying blood to both sides of the filter paper would not ensure proper saturation of the circles where the sample needs to be collected. This action may lead to an inadequate sample, affecting the accuracy of the screening results.

B (The phlebotomist fills the first circle with the first drop of blood.) YOUR ANSWER

Filling only the first circle with the first drop of blood may not provide enough sample volume for the required tests. It is essential to fill all designated circles to ensure an adequate sample for comprehensive screening.

C (The phlebotomist presses the filter paper against the skin for proper contact.) YOUR ANSWER

While proper contact between the filter paper and the skin is essential for effective blood absorption, the critical aspect of specimen collection in this scenario is to completely fill the circles on the filter paper with the blood sample.

Conclusion

In newborn screening heel sticks, ensuring proper specimen collection is crucial for accurate test results. The correct action involves the phlebotomist completely filling the circles on the filter paper with the blood sample obtained from the newborn. This method guarantees an adequate sample volume for the necessary tests and contributes to the reliability of the screening process.

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