C1 Esterase Inhibitor, Quantitative
Last modified by
mike_rogers
on
March 01, 2010 08:07 PM
|
UNC Hospitals McLendon Clinical Laboratories 101 Manning Drive Chapel Hill, NC 27514 |
| Tube Type
|
| Test ID | C1EQ | |
| Test Number | M112 | |
| SMS Browse | C1 INHIBITOR, QUANTITATIVE | |
| CPT Code(s) | 83520 | |
| Group/Individual Test | Individual | |
| Laboratory | Core Referral Testing | |
| Tube Station | 30 | |
| Specimen | Routine: | 4 mL blood/Red Top Tube/no SST; See important Comments |
| micro: | 3 microtainers/ 1.5 mL blood | |
| Availability | Routine: | Reference Lab - Sent to Mayo |
| STAT: | N/A | |
| Turnaround Time | 3-5 days | |
| Reference Range | Normal: | See separate report |
| Comments | Patient should be fasting (12 hour fast preferred) Patients being investigated for a deficiency of C1 Esterase Inhibitor can be effectively screened with serum concentration of C4. A C4 within the reference range has a 99% negative predictive value for the diagnosis of C1 esterase inhibitor deficiency (Gompels MM, Lock RJ, Morgan JE, et al. A multicentre evaluation of the diagnostic efficiency of serololgical investigations for C1 inhibitor deficiency. J Clin Pathol 2002; 55:145-147) | |
C1 Esterase Inhibitor, Quantitative
