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Estradiol Level
Test CodeLAB523
Alias/See Also
1231100128
CPT Codes
82670
Includes
ESTRADIOL LEVEL
Preferred Specimen
CLINIC COLLECTIONS: Green Lithium Heparin tube (Gel separator preferred)
Minimum Volume
CLINIC COLLECTIONS: 0.5 mL plasma
Instructions
CLINIC COLLECTIONS: Collect 0.5 ml plasma in Green Lithium Heparin tube (Gel separator preferred). Must be spun within 2 hours after collection. If no gel separator, plasma must be pulled off cells within 2 hours.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated (2 to 8°C): 7 Days
If testing will be delayed more than 7 days, specimens should be frozen at -20°C or colder.
Freezer (-20°C): 14 Days
If testing will be delayed more than 7 days, specimens should be frozen at -20°C or colder.
Freezer (-20°C): 14 Days
Methodology
Abbott Alinity
Reference Range
Males: 11.0-44.0 pg/mL
Females:
Follicular: 21.0-251.0 pg/mL
Pre-ovulatory: 38.0-649.0 pg/mL
Luteal: 21.0-312.0 pg/mL
Postmenopausal(no HRT): <10 - 28.0 pg/mL
Postmenopausal(HRT): <10.-144.0 pg/mL
Females:
Follicular: 21.0-251.0 pg/mL
Pre-ovulatory: 38.0-649.0 pg/mL
Luteal: 21.0-312.0 pg/mL
Postmenopausal(no HRT): <10 - 28.0 pg/mL
Postmenopausal(HRT): <10.-144.0 pg/mL
Performing Laboratory
LITTLE ROCK LABORATORY
Last Updated: August 26, 2026
