Amino Acids, Random Urine


Abbrev Code:UAAR1, UAAR25, UAAR   
Order Code:LAB3801, LAB3015, LAB3803Order Name:Amino Acids Random Urine
Order Instructions:If a single amino acid is requested, order UAAR1 (LAB3801); If 2-5 amino acids are requested, order UAAR25 (LAB3015). Specify amino acids required. If panel is requested, order UAAR (LAB3803).
Synonyms:AA; Alanine; B-alanine; A-aminoadipic Acid; B-aminoisobutyric Acid; Anserine; Arginine; Argininosuccinic Acid; Asparagine; Aspartic Acid; Carnosine; Citrulline; Half-cystine; Cystathionine; Glutamic Acid; Glutamine; Glycine; Histidine; Homocystine; Hydroxylysine; Hydroxyproline; Isoleucine; Leucine; Lysine; Methionine; 1-methylhistidine; 3-methylhistidine; Ornithine; Phenylalanine; Proline; Sarcosine; Serine; Taurine; Threonine; Tyrosine; Valine
Methodology:High performance ion exchange liquid chromatography
CPT Codes: 82131 x1, 82136 x1, 82139 x1
Test Includes:Alanine, B-alanine, A-aminoadipic acid, B-aminoisobutyric acid, anserine, arginine, argininosuccinic acid, asparagine, aspartic acid, carnosine, citrulline, half-cystine, cystathionine, glutamic acid, glutamine, glycine, histidine, homocystine, hydroxylysine, hydroxyproline, isoleucine, leucine, lysine, methionine, 1-methylhistidine, 3-methylhistidine, ornithine, phenylalanine, proline, sarcosine, serine, taurine, threonine, tyrosine, valine, and urine creatinine.
Turnaround Time:Performed Mon-Fri; results are reported the next day.
Special Instructions:Provide clinical history and specify amino acid(s) desired on request form.
Associated Links:

Urine Collection Procedure


Collection Instructions

Specimen:Urine, random collection
Optimal Volume:Submit entire collection; amino acid analysis requires 1 mL minimum; creatinine analysis requires 0.2 mL minimum
Container:Plastic leakproof container, sterile


Processing and Shipping

Specimen Processing:Aliquot urine for UCRR and send original container to Biochemical Genetics. Analysis requires 1 mL minimum. Room temperature or refrigerated samples must arrive at Biochemical Genetics within 2 hours of collection (preferred). Alternately, store specimen in the freezer and ship on ice.
Test Performed at or Referral Lab UM Special Drug/Biochemical Genetics (Y)  (UMMC East Bank)


Interpretive

Reference Range:An interpretation of the report can be ordered/requested. 

Urine, Random Collection (umol/g creatinine)
  0-20 d 21-90 d 3 mo-2 y 3-11 y 12 y & older
Alanine 238-2742 327-2993 98-2078 70-1486 66-452
A-aminoadipic 0-253 0-317 0-372 0-288 0-84
Arginine 20-274 0-254 0-96 16-67 0-31
Asparagine 0-1494 0-1546 0-1268 0-749 0-285
Aspartic acid 0-443 0-439 0-223 0-138  
Citrulline 0-140 0-188 0-124 0-75 0-54
Cystathionine 0-322 0-129 0-110 0-70 0-34
Half-Cystine 89-1795 48-849 39-415 47-266 32-185
Ethanolamine 0-3468 0-2463 0-1448 0-1297  
Glutamine 162-3132 30-4632 256-3227 140-1946 96-673
Glutamic acid 0-207 0-218 0-147 0-80 0-29
Glycine 1013-23618 1020-22194 645-6757 378-5417 275-3479
Histidine 0-2741 0-4391 0-3906 0-3283 0-1551
Hydroxylysine 0-190 0-806 0-101 0-60  
Hydroxyproline 0-3530 0-4613      
Isoleucine 0-227 0-206 0-259 0-175 Present
Leucine 0-194 16-300 18-220 17-150 4-55
Lysine 117-2221 97-2015 12-600 19-539 10-370
Methionine 0-855 0-904 0-644 0-191 0-100
1-Methylhistidine 0-221 0-53 0-364 0-400 0-1127
3-Methylhistidine 0-599 0-357 0-607 0-568 0-309
Ornithine 0-291 0-343 0-108 0-82 0-28
Phenylalanine 27-260 58-293 14-342 13-195 16-71
Proline 143-2203 0-1537 0-390 0-44 0-0
Serine 309-4341 27-3652 107-2167 72-1425 136-645
Taurine 0-5031 0-3835 0-2854 0-1462 0-1476
Threonine 0-1277 0-1454 0-923 0-870 0-387
Tyrosine 0-949 0-1210 0-934 0-630 0-158
Valine 0-400 0-163 0-203 0-116 0-46
Use:Abnormalities in urine amino acid concentrations may reflect elevations in the plasma. Urine cystine is diagnostic for cystinuria.


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