TOTAL COMPLEMENT--CH50

LAB154

Collect

Plain red.

Specimen Preparation

Allow specimen to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL)

Unacceptable Conditions

Separator tubes. Specimens left to clot at 2-8°C. Specimens exposed to repeated freeze/thaw cycles. Non-frozen specimens.

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Stability (from collection to initiation)

After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks

Performed

Mon-Fri

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Reported

1-2 days

Synonyms

  • CH50
  • Complement CH100, Total
  • Total Complement CH50
  • Total Complement CH100
  • CH100
  • LAB154

Additional Technical Information

Ordering Recommendations

Initial screening for suspected deficiency in the classical complement pathway.

Reference Interval

Effective May 16, 2011

60-144 CAE Units

CPT Codes

86162
Collection

LAB154

Collect

Plain red.

Specimen Preparation

Allow specimen to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL)

Unacceptable Conditions

Separator tubes. Specimens left to clot at 2-8°C. Specimens exposed to repeated freeze/thaw cycles. Non-frozen specimens.

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Stability (from collection to initiation)

After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 2 weeks
Ordering

Performed

Mon-Fri

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Reported

1-2 days

Synonyms

  • CH50
  • Complement CH100, Total
  • Total Complement CH50
  • Total Complement CH100
  • CH100
  • LAB154

Additional Technical Information

Ordering Recommendations

Initial screening for suspected deficiency in the classical complement pathway.
Result Interpretation

Reference Interval

Effective May 16, 2011

60-144 CAE Units
Administrative

CPT Codes

86162

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