Urine Amino Acid Reference Intervals

 

Analyte

0−30 d

(μmol/g cr)

31 d−23 m

(μmol/g cr)

2 y−11 y

(μmol/g cr)

12 y−17 y

(μmol/g cr)

>17 y

(μmol/g cr)

Alanine (α-alanine)

0.0−3784.3

0.0−3133.1

0.0−1869.3

0.0−693.8

0.0−1337.0

β-Alanine

0.0−1318.6

0.0−1158.1

0.0−128.2

0.0−810.0

0.0−869.8

Alloisoleucine

0.0−35.0

0.0−40.1

0.0−17.3

0.0−8.0

0.0−13.5

α-Aminoadipic acid

0.0−299.7

0.0−403.1

0.0−211.1

0.0−167.0

0.0−146.7

γ-Aminobutyric acid (GABA)

0.0−22.2

0.0−73.0

0.0−10.2

0.0−22.7

0.0−13.1

β-Aminoisobutyric acid

0.0−1230.4

0.0−2160.7

0.0−1325.7

0.0−453.9

0.0−807.9

α-Amino-N-butyric acid

0.0−110.5

0.0−85.0

0.0−45.2

0.0−76.4

0.0−34.6

Arginine

0.0−105.8

0.0−259.8

0.0−69.4

0.0−107.7

0.0−69.6

Argininosuccinic acid

0.0−85.4

0.0−74.8

0.0−74.7

0.0−173.1

0.0−51.2

Asparagine

0.0−2100.3

0.0−1328.9

0.0−687.8

0.0−913.9

0.0−454.2

Aspartic acid

0.0−62.0

0.0−223.6

0.0−39.1

0.0−40.9

0.0−86.7

Citrulline

0.0−55.1

0.0−56.1

0.0−23.2

0.0−27.4

0.0−27.4

Cystathionine

0.0−297.4

0.0−164.2

0.0−42.5

0.0−82.6

0.0−80.8

Cystine

0.0−532.8

0.0−300.0

0.0−141.4

0.0−337.6

0.0−223.8

Glutamic acid

0.0−565.2

0.0−212.6

0.0−92.4

0.0−49.6

0.0−92.4

Glutamine

0.0−2279.4

0.0−4544.3

0.0−1920.6

0.0−822.0

0.0−1756.2

Glycine

0.0−15087.9

0.0−17135.0

0.0−8319.0

0.0−6346.3

0.0−7996.9

Histidine

0.0−2368.9

0.0−5923.6

0.0−2982.9

0.0−5280.3

0.0−2534.2

Homocitrulline

0.0−347.7

0.0−189.4

0.0−103.7

0.0−123.4

0.0−80.0

Homocystine

0.0−0.4

0.0−2.5

0.0−1.5

0.0−6.6

0.0−2.0

Hydroxylysine

0.0−155.5

0.0−132.5

0.0−59.7

0.0−82.9

0.0−37.3

Hydroxyproline

0.0−4750.9

0.0−1281.4

0.0−59.5

0.0−105.8

0.0−87.8

Isoleucine

0.0−88.6

0.0−115.5

0.0−46.4

0.0−78.9

0.0−48.1

Leucine

0.0−208.6

0.0−242.1

0.0−111.2

0.0−209.5

0.0−129.1

Lysine

0.0−4913.5

0.0−929.0

0.0−562.2

0.0−824.0

0.0−1020.6

Methionine

0.0−118.9

0.0−59.7

0.0−32.2

0.0−66.4

0.0−37.1

Ornithine

0.0−558.2

0.0−155.4

0.0−66.6

0.0−112.6

0.0−76.3

Phenylalanine

0.0−229.9

0.0−433.4

0.0−202.8

0.0−450.6

0.0−239.0

Proline

0.0−4937.9

0.0−1238.3

0.0−111.6

0.0−189.3

0.0−168.6

Sarcosine

0.0−188.7

0.0−193.5

0.0−34.2

0.0−51.4

0.0−27.3

Serine

0.0−3004.6

0.0−3522.9

0.0−1385.5

0.0−2284.1

0.0−1052.8

Taurine

0.0−19952.1

0.0−5941.6

0.0−3681.1

0.0−1868.7

0.0−5335.7

Threonine

0.0−1638.8

0.0−1451.6

0.0−789.6

0.0−387.9

0.0−714.9

Tryptophan

0.0−385.4

0.0−391.6

0.0−210.9

0.0−106.0

0.0−207.5

Tyrosine

0.0−1071.9

0.0−710.9

0.0−351.4

0.0−217.4

0.0−388.9

Valine

0.0−548.9

0.0−347.8

0.0−164.0

0.0−81.1

0.0−147.4

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