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HelpTest Code IMUGLB IGG, IGA, IGM, LAB166
Methodology
Nephelometry
Performing Laboratory
St. Luke's Hospital Cedar Rapids
Specimen Requirements
Container/Tube:
Preferred: Green-top (lithium heparin) tube
Acceptable: Gold-top serum gel tube or plain red-top tube
Specimen Volume: 0.1 mL of lithium heparin plasma
Stability: Separated specimens should be analyzed immediately or kept at 2 – 8 °C and
analyzed within 7 days. For longer storage, samples may be frozen at -20 °C for
up to 3 months.
Reference Values
IgG
0 days-4 months: 141-930 mg/dL
5-8 months: 250-1190 mg/dL
9-11 months: 320-1250 mg/dL
1-3 years: 400-1250 mg/dL
4-6 years: 560-1307 mg/dL
7-9 years: 598-1379 mg/dL
10-12 years: 638-1453 mg/dL
13-15 years: 680-1531 mg/dL
16-17 years: 724-1611 mg/dL
≥18 years: 700-1600 mg/dL
IgA
0 days-4 months: 5-64 mg/dL
5-8 months: 10-87 mg/dL
9-14 months: 17-94 mg/dL
15-23 months: 22-178 mg/dL
2-3 years: 24-192 mg/dL
4-6 years: 26-232 mg/dL
7-9 years: 33-258 mg/dL
10-12 years: 45-285 mg/dL
13-15 years: 47-317 mg/dL
16-17 years: 55-377 mg/dL
≥18 years: 70-400 mg/dL
IgM
Males:
0 days-4 months: 14-142 mg/dL
5-8 months: 24-167 mg/dL
9-23 months: 35-200 mg/dL
2-3 years: 41-200 mg/dL
4-17 years: 47-200 mg/dL
≥18 years: 40-230 mg/dL
Females:
0 days-4 months: 14-142 mg/dL
5-8 months: 24-167 mg/dL
9-23 months: 35-242 mg/dL
2-3 years: 41-242 mg/dL
4-17 years: 56-242 mg/dL
≥18 years: 40-230 mg/dL
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
82784 x 3
Report Available
STAT within 1 hour of receipt
Routine within 2 hours of receipt