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Test Code LAB2521 Newborn Screen 1

Methodology

Includes screening for amino acid disorders, fatty acid oxidation disorders, organic acid disorders, congenital adrenal hyperplasia, congenital hypothyroidism, biotinidase deficiency, galactosemia, G-6-PD deficiency, and sickle cell hemoglobinopathies.

Performing Laboratory

Maryland State Health Department, Baltimore, MD - Serology

Specimen Requirements

Specimen must be collected on a properly labeled and completed Filter Paper Collection/Identification Form (Form DHMH77). Specimen for this procedure cannot be accepted unless information requested is supplied.

 

1. Collect by heel stick in capillary tube after infant has been fed for 24 hours.

2. Apply capillary blood to 5 circles on absorbent card. Circles must be completely filled.

3. Allow card to dry at ambient temperature.

Note: The following specimens are not acceptable:

1. Blood not completely penetrating paper

2. Blood smeared outside of circle

3. Clots on paper

4. Improperly labeled

5. Scratched surface

6. Unfilled spaces in circles

Reference Values

Interpretation is WNL (within normal limits)