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Test ID: AACSF
Amino Acids, Quantitative, Spinal Fluid

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Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

CSF Amino Acid Reference Values (nmol/mL)

Age Groups

< or =31 Days
(n=73)

32 Days-23 Months
(n=88)

2-18 Years
(n=189)

> or =19 Years
(n=32)

Phosphoserine (PSer)

<1

<1

<1

<1

Phosphoethanolamine (PEtN)

<15

<10

<8

<7

Taurine (Tau)

8-48

<28

<13

<20

Asparagine (Asn)

8-34

5-16

<10

5-20

Serine (Ser)

44-136

26-71

21-51

19-40

Hydroxyproline (Hyp)

<7

<3

<1

<2

Glycine (Gly)

5-115

<33

<11

<35

Glutamine (Gln)

467-1832

301-1128

326-1092

380-1348

Aspartic Acid (Asp)

<1

<1

<1

<2

Ethanolamine (EtN)

11-193

7-155

7-153

7-153

Histidine (His)

11-70

9-28

9-21

9-28

Threonine (Thr)

32-143

11-77

14-38

23-57

Citrulline (Cit)

<11

<6

<3

<9

Sarcosine (Sar)

<1

<1

<1

<1

Beta-alanine (bAla)

<26

<25

<25

<25

Alanine (Ala)

24-124

16-53

12-34

19-60

Glutamic Acid (Glu)

<12

<3

<1

<4

1-Methylhistidine (1MHis)

<3

<1

<2

<3

3-Methylhistidine (3MHis)

<4

<1

<1

<2

Argininosuccinic Acid (Asa)

<1

<2

<1

<1

Carnosine (Car)

<1

<1

<1



Key