Tests
N-Acetyl Aspartate to Choline Ratio Measurement
The determination of the ratio of N-acetyl aspartate compared to choline present in a sample. The measurement may be expressed as a ratio or percentage.
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Tests
The determination of the ratio of N-acetyl aspartate compared to choline present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
A PKU screening test measures the amount of a protein called phenylalanine (Phe) in a sample of a newborn's blood. Phe is in all foods that contain protein such as milk, meats, and nuts. It's also in an artificial sweetener called aspartame. If a newborn has high levels of Phe in their blood, it could mean that they have phenylketonuria (PKU).