Which of the Following Is an Incorrect Step in Obtaining

question 22

Multiple Choice

Which of the following is an incorrect step in obtaining a blood sample for PKU testing?

• A)Make a puncture approximately 2-3 mm deep in the lateral heel. 
• B)Soak blood completely through the paper. 
• C)Use as many blood drops as necessary to fill each circle. 
• D)Allow PKU test card to completely dry.

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