2-Hydroxyglutaric Acid Chiral Analysis, Quantitative, Random, Urine - Schneck Medical Center

Necessary Information

1. Age and sex of patient are required.

2. Biochemical Genetics Patient Information (T602) is recommended, but not required, to be filled out and sent with the specimen to aid in the interpretation of test results.

Specimen Required

Supplies: Urine Tube, 10 mL (T068)

Container/Tube: Plastic, 10-mL urine tube

Specimen Volume: 10 mL

Pediatric: If the collection volume appears insufficient, submit as much specimen as possible in a single container; the laboratory will determine if volume is sufficient for test.

Collection Instructions:

1. Collect a random urine specimen (first morning void preferred)

2. No preservative

Secondary ID

614603

Useful For

Determining type of 2-hydroxyglutaric aciduria by chiral analysis of urine

Specimen Type

Urine

Specimen Stability Information

Specimen Type	Temperature	Time
Urine	Frozen (preferred)	416 days
	Ambient	14 days
	Refrigerated	14 days

Reject Due To

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Reference Values

Age	D-2-hydroxyglutaric acid (mmol/mol creatinine)	L-2-hydroxyglutaric acid (mmol/mol creatinine)
0-11 months	≤14.11	≤17.38
12-23 months	≤13.76	≤17.03
24-35 months	≤13.38	≤16.63
3 years	≤12.96	≤16.18
4 years	≤12.20	≤15.35
5 years	≤11.40	≤14.44
6 years	≤10.56	≤13.46
7 years	≤9.71	≤12.43
8 years	≤8.93	≤11.44
9 years	≤8.21	≤10.50
10 years	≤7.56	≤9.66
11 years	≤6.99	≤8.94
12 years	≤6.47	≤8.33
13 years	≤6.01	≤7.83
14 years	≤5.60	≤7.44
15 years	≤5.23	≤7.14
16 years	≤4.91	≤6.93
17 years	≤4.63	≤6.78
18 years	≤4.40	≤6.69
19 years	≤4.21	≤6.63
20 years	≤4.07	≤6.60
21 years	≤3.96	≤6.59
22 years	≤3.88	≤6.58
23 years	≤3.81	≤6.56
24 years	≤3.76	≤6.54
25 years	≤3.71	≤6.50
26 years	≤3.67	≤6.44
27 years	≤3.63	≤6.37
28 years	≤3.59	≤6.27
29 years	≤3.56	≤6.15
30 years	≤3.54	≤6.02
31 years	≤3.52	≤5.87
32 years	≤3.50	≤5.72
33 years	≤3.49	≤5.57
34 years	≤3.48	≤5.41
35 years	≤3.46	≤5.26
36 years	≤3.45	≤5.13
37 years	≤3.43	≤5.00
38 years	≤3.42	≤4.88
39 years	≤3.40	≤4.78
40 years	≤3.39	≤4.70
41 years	≤3.37	≤4.62
42 years	≤3.35	≤4.55
43 years	≤3.33	≤4.50
44 years	≤3.30	≤4.44
45 years	≤3.28	≤4.40
46 years	≤3.24	≤4.35
47 years	≤3.21	≤4.31
48 years	≤3.17	≤4.27
49 years	≤3.13	≤4.23
50 years	≤3.10	≤4.19
51 years	≤3.07	≤4.16
52 years	≤3.04	≤4.12
53 years	≤3.01	≤4.10
54 years	≤2.99	≤4.07
55 years	≤2.97	≤4.04
56 years	≤2.95	≤4.01
57 years	≤2.93	≤3.98
58 years	≤2.91	≤3.94
59 years	≤2.89	≤3.91
60 years	≤2.87	≤3.87
61 years	≤2.85	≤3.84
62 years	≤2.83	≤3.80
63 years	≤2.79	≤3.78
64 years	≤2.76	≤3.75
65 years	≤2.71	≤3.73
66 years	≤2.67	≤3.72
67 years	≤2.61	≤3.71
68 years	≤2.56	≤3.69
69 years	≤2.50	≤3.68
70 years	≤2.44	≤3.66
71 years	≤2.38	≤3.64
72 years	≤2.32	≤3.61
73 years	≤2.26	≤3.56
74 years	≤2.21	≤3.50
75 years	≤2.16	≤3.43
76 years	≤2.10	≤3.35
77 years	≤2.05	≤3.26
78 years	≤2.00	≤3.17
79 years	≤1.94	≤3.08
80 years	≤1.89	≤2.99
81 years	≤1.84	≤2.91
82 years	≤1.80	≤2.84
83 years	≤1.75	≤2.78
84 years	≤1.71	≤2.73
85 years	≤1.68	≤2.69
86 years	≤1.65	≤2.67
87 years	≤1.64	≤2.65
88 years	≤1.63	≤2.64
≥89 years	≤1.62	≤2.64

Day(s) Performed

Thursday

Report Available

3 to 9 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

83921 x 2

Forms

1. Biochemical Genetics Patient Information (T602)

2. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.

Special Instructions

Biochemical Genetics Patient Information

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Test ID 2HGA 2-Hydroxyglutaric Acid Chiral Analysis, Quantitative, Random, Urine