Test Code 2HGA 2-Hydroxyglutaric Acid Chiral Analysis, Quantitative, Random, Urine
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
Specimen Type
UrineSpecimen Minimum Volume
1 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
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 |
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 daysSpecimen Retention Time
2 monthsPerforming Laboratory
Mayo Clinic Laboratories in RochesterCPT Code Information
83921 x 2