5-Hydroxyindoleacetic Acid, Random, Urine - Mayo Clinic Laboratories Extended Catalog

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Ordering Guidance

This test uses a random urine collection to assess 5-hydroxyindoleacetic acid concentrations. If a 24-hour urine collection is preferred, order HIAA / 5-Hydroxyindoleacetic Acid, 24 Hour, Urine.

Necessary Information

Patient's age and sex are required.

Specimen Required

Patient Preparation:

1. Some medications could interfere with test results. If medically feasible, for 48 hours before specimen collection, patient should not take the following medications:

-Acetaminophen (Tylenol or generic versions)

-Tryptophan containing supplements

2. For 48 hours prior to the urine collection, the patient should limit the following to one serving per day:

-Fruits

-Vegetables

-Nuts

-Caffeinated beverages or foods

Supplies: Urine Tubes, 10 mL (T068)

Container/Tube: Plastic, 10-mL urine tube

Specimen Volume: 5 mL

Collection Instructions:

1. Collect a random urine specimen.

2. Store and send refrigerate

Reporting Name

5-HIAA, Random, U

Specimen Type

Urine

Specimen Stability Information

Specimen Type	Temperature	Time
Urine	Refrigerated (preferred)	56 days
	Frozen	365 days

Report Available

2 to 4 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

LOINC Code Information

Test ID	Test Order Name	Order LOINC Value
HIAAR	5-HIAA, Random, U	11145-0

Result ID	Test Result Name	Result LOINC Value
616090	5-HIAA, Random, U	11145-0

Useful For

Biochemical diagnosis and monitoring of intestinal carcinoid syndrome using random urine specimens

Day(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

83497

Specimen Minimum Volume

2 mL

Reference Values

99th percentile cutoff

Age	Female mg/g creatinine	Male mg/g creatinine
≤23 months	≤17.53	≤16.42
24-35 months	≤17.07	≤15.96
3 years	≤16.70	≤15.60
4 years	≤16.03	≤14.93
5 years	≤15.26	≤14.17
6 years	≤14.40	≤13.34
7 years	≤13.47	≤12.43
8 years	≤12.52	≤11.52
9 years	≤11.58	≤10.63
10 years	≤10.67	≤9.79
11 years	≤9.81	≤9.00
12 years	≤9.02	≤8.29
13 years	≤8.32	≤7.65
14 years	≤7.70	≤7.08
15 years	≤7.16	≤6.59
16 years	≤6.72	≤6.15
17 years	≤6.36	≤5.78
18 years	≤6.08	≤5.45
19 years	≤5.88	≤5.17
20 years	≤5.73	≤4.93
21 years	≤5.64	≤4.73
22 years	≤5.59	≤4.55
23 years	≤5.57	≤4.40
24 years	≤5.57	≤4.28
25 years	≤5.58	≤4.19
26 years	≤5.61	≤4.11
27 years	≤5.64	≤4.06
28 years	≤5.67	≤4.03
29 years	≤5.70	≤4.02
30 years	≤5.72	≤4.01
31 years	≤5.75	≤4.02
32 years	≤5.77	≤4.03
33 years	≤5.78	≤4.05
34 years	≤5.79	≤4.06
35 years	≤5.80	≤4.08
36 years	≤5.80	≤4.09
37 years	≤5.80	≤4.11
38 years	≤5.80	≤4.12
39 years	≤5.81	≤4.14
40 years	≤5.82	≤4.17
41 years	≤5.85	≤4.22
42 years	≤5.89	≤4.27
43 years	≤5.95	≤4.35
44 years	≤6.04	≤4.43
45 years	≤6.14	≤4.53
46 years	≤6.26	≤4.63
47 years	≤6.40	≤4.75
48 years	≤6.55	≤4.86
49 years	≤6.71	≤4.99
50 years	≤6.86	≤5.11
51 years	≤7.01	≤5.24
52 years	≤7.15	≤5.37
53 years	≤7.29	≤5.51
54 years	≤7.41	≤5.64
55 years	≤7.52	≤5.78
56 years	≤7.62	≤5.91
57 years	≤7.71	≤6.05
58 years	≤7.80	≤6.17
59 years	≤7.88	≤6.29
60 years	≤7.95	≤6.41
61 years	≤8.02	≤6.51
62 years	≤8.09	≤6.60
63 years	≤8.15	≤6.69
64 years	≤8.21	≤6.76
65 years	≤8.28	≤6.82
66 years	≤8.34	≤6.88
67 years	≤8.40	≤6.93
68 years	≤8.46	≤6.97
69 years	≤8.52	≤7.00
70 years	≤8.58	≤7.03
71 years	≤8.65	≤7.06
72 years	≤8.71	≤7.08
73 years	≤8.77	≤7.10
74 years	≤8.82	≤7.11
75 years	≤8.86	≤7.11
76 years	≤8.90	≤7.11
77 years	≤8.92	≤7.10
78 years	≤8.93	≤7.09
79 years	≤8.93	≤7.07
80 years	≤8.92	≤7.05
81 years	≤8.90	≤7.02
82 years	≤8.88	≤7.00
83 years	≤8.86	≤6.98
84 years	≤8.85	≤6.97
85 years	≤8.84	≤6.95
86 years	≤8.84	≤6.94
87 years	≤8.84	≤6.94
88 years	≤8.84	≤6.94
>or= 89 years	≤8.85	≤6.93

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Test ID HIAAR 5-Hydroxyindoleacetic Acid, Random, Urine