Test Details
Mnemonic
INTLX
Ordering Code
3600301
CPT-4 Code(s)
83520
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Send 1.0 mL serum in plastic
screw capped plastic vial. CRITICAL FROZEN
Separate specimens must be submitted when multiple tests ordered.
screw capped plastic vial. CRITICAL FROZEN
Separate specimens must be submitted when multiple tests ordered.
Alternate Specimen
Red top
Minimum Volume
0.4 mL
Transport Temperature
CRITICAL FROZEN
Rejection Criteria
Refrigerated specimens. Contaminated or heat-inactivated specimens.
Stability
Room temperature: 30 minutes
Refrigerated: Unacceptable
Frozen: 1 year
Refrigerated: Unacceptable
Frozen: 1 year
Methodology
Quantitative Multiplex Bead Assay
Reference Range
Age MALES FEMALES
ng/mL ng/mL
0-11 months 18-79 14-106
1 year 20-108 23-136
2 years 24-135 30-163
3 years 28-148 34-192
4 years 32-165 38-217
5 years 37-196 46-243
6 years 43-229 56-268
7 years 50-243 64-288
8 years 59-275 74-337
9 years 67-315 81-405
10 years 75-366 85-526
11 years 82-423 91-610
12 years 87-519 110-656
13 years 101-620 150-678
14 years 123-701 174-656
15 years 161-760 156-586
16 years 171-748 140-517
17 years 161-635 130-471
18 years 145-506 117-430
19 years 122-435 113-408
20 years 116-410 108-384
21-25 years 109-353 101-347
26-30 years 101-307 91-308
31-35 years 95-290 84-281
36-40 years 90-278 79-259
41-45 years 84-270 74-239
46-50 years 81-263 70-225
51-55 years 74-255 65-216
56-60 years 68-247 60-207
61-65 years 64-240 57-202
66-70 years 59-230 52-196
71-75 years 53-222 48-191
76-80 years 45-207 42-185
81-85 years 40-194 39-177
85-90 years 33-176 34-169
>90 years * *
*Reference ranges have not been
established for patients that
are >90 years of age.
ng/mL ng/mL
0-11 months 18-79 14-106
1 year 20-108 23-136
2 years 24-135 30-163
3 years 28-148 34-192
4 years 32-165 38-217
5 years 37-196 46-243
6 years 43-229 56-268
7 years 50-243 64-288
8 years 59-275 74-337
9 years 67-315 81-405
10 years 75-366 85-526
11 years 82-423 91-610
12 years 87-519 110-656
13 years 101-620 150-678
14 years 123-701 174-656
15 years 161-760 156-586
16 years 171-748 140-517
17 years 161-635 130-471
18 years 145-506 117-430
19 years 122-435 113-408
20 years 116-410 108-384
21-25 years 109-353 101-347
26-30 years 101-307 91-308
31-35 years 95-290 84-281
36-40 years 90-278 79-259
41-45 years 84-270 74-239
46-50 years 81-263 70-225
51-55 years 74-255 65-216
56-60 years 68-247 60-207
61-65 years 64-240 57-202
66-70 years 59-230 52-196
71-75 years 53-222 48-191
76-80 years 45-207 42-185
81-85 years 40-194 39-177
85-90 years 33-176 34-169
>90 years * *
*Reference ranges have not been
established for patients that
are >90 years of age.
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes