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HelpTest Code LAB1243 C4 Complement, Plasma or Serum
Additional Codes
| Test Name in EPIC | EPIC Test Code | Mnemonic |
|---|---|---|
| C4 | LAB1243 | C4 |
Methodology
Immunoturbidimetric
Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Specimen Type: Plasma
Container/Tube: Light-green top (lithium heparin gel)
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Additional Information:
1. Fresh specimens should be used whenever possible. Process specimens and perform testing as soon as possible after collection.
2. Total time at ambient temperature (including processing time) should not exceed 6 hours.
3. If testing is delayed > 6 hours, specimens may be refrigerated up to 48 hours. Frozen specimen are NOT acceptable.
4. Label specimen appropriately (plasma).
Alternate:
Specimen Type: Serum
Container/Tube: Red top or serum gel
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Additional Information:
1. Fresh specimens should be used whenever possible. Process specimens and perform testing as soon as possible after collection.
2. Total time at ambient temperature (including processing time) should not exceed 6 hours.
3. If testing is delayed > 6 hours, specimens may be refrigerated up to 48 hours. Frozen specimen are NOT acceptable.
4. Label specimen appropriately (serum).
Specimen Transport Temperature
Refrigerate 48 hours/Ambient 6 hours/Frozen NO
Day(s) Test Set Up
Monday through Sunday
Performing Laboratory
Chemistry-
SMDC Clinical Lab
Test Classification and CPT Coding
86160
Reference Values
0-1 year: 7-30 mg/dL
1-18 years: 13-37 mg/dL
Adult: 15-42 mg/dL