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Test 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 19.5 – 144.2 pg/mL  
  Midcycle 63.9 – 356.7 pg/mL  
  Luteal Phase 55.8 - 214.2 pg/mL  
  Post-menopausal ND – 32.2 pg/mL  
  Pregnancy 1st Trimester <215.00 – >4300 pg/mL  
Adult Male   ND – 39.8 pg/mL  

Reportable Units

pg/mL

Critical Value

Not defined for this assay

Reasons for Rejection

 


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Hemolysis Threshold 250 mg/dL
Icterus Threshold 20 mg/dL
Lipemia Threshold 1000 mg/dL
Other QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability

 


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Ambient 8 hours
Refrigerated (4°C to 8°C) 2 days
Frozen(-40°C to 0°C) 6 months

Performance Information

 


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Days and Time Performed 24/7
Expected Turn Around Time Stat: 1 hour
Routine: 4 hours
Stat Availability Yes
Performing Bench UH Chemistry
Methodology/Method Description Siemens Atellica - Immunoassay

CPT Codes

82670