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HelpTest Code Estra Estradiol Level
Patient Preparation
No special patient preparation required
Collection Method
Venous collection
Minimum Volume
- Adults: 1 ml
- Pediatric: 0.8 mL
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Light Green Top (lithium heparin) plasma
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (Lithium heparin)
- Purple or Pink Top(K2/K3 EDTA)
Reference or Target Ranges
| Adult Female | Follicular Phase | 12.50 – 166.00 pg/mL |
| Pre-ovulatory Phase | 85.80 – 498.00 pg/mL | |
| Luteal Phase | 43.80 – 211.00 pg/mL | |
| Post-menopausal | <5.00 – 54.70 pg/mL | |
| Pregnancy 1st Trimester | <215.00 – >4300 pg/mL | |
| Adult Male | 7.63 – 42.6 pg/mL |
Reportable Units
pg/mL
Critical Value
Not defined for this assay
Reasons for Rejection
<!-- Rejection-->
| Hemolysis Threshold | 1000 mg/dL |
| Icterus Threshold | 66 mg/dL |
| Lipemia Threshold | 3000 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
<!-- Stability -->
| Ambient | 8 hours |
| Refrigerated (4°C to 8°C) | 2 days |
| Frozen(-40°C to 0°C) | 6 months |
Performance Information
<!-- Performance information -->
| Days and Time Performed | 24/7 |
| Expected Turn Around Time | Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | WCH Chemistry |
| Methodology/Method Description | Roche Cobas – EIA Competition principle using polyclonal antibody |
CPT Codes
82670