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Test Code LH Luteinizing Hormone

Clinical System Name

Luteinizing Hormone

Sample Requirements

Specimen: Whole blood

Container(s): Gold SST, Dark Green/Sodium Heparin, Lt. Green/Lithium Heparin Microtainer, Gold Microtainer, Red

Preferred Vol: 1.0 mL,

Minimum Vol: 0.5 mL

 

Note: Specify age and sex of patient. 

Minimum volume of 1.0 mL may be shared with FSH, LH and prolactin.

Processing Instructions

Reject due to: gross lipemia

Spin: Y

Aliquot: Y

Temp: 2-8 C

Storage location: CPA refrigerator,  FrigD rack. Serum/plasma should be removed from separator for storage.

 

Off-site collection: On requisition, specify age and sex of patient. Spin blood. Transfer serum/plasma to plastic aliquot container. Refrigerate.

Stability

Specimen Type Temperature Time
gel separator with serum/plasma Refrigerated 48 h
separated serum/plasma Room temp 2 h
  Refrigerated 5 d
  Frozen -20 C 4 w

 

Availability

STAT Performed TAT
N M-F, day shift 1-4 d

 

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Chemistry

Location: Chem West

Phone Number:  (206) 987-2617

 

 

 

Reference Range

 

Age Males (mIU/mL) Females (mIU/mL)
Birth - 1 week 1.5 - 5.0 1.5 - 5.0
1 week - 1 year See Comment Below See Comment Below
Prepubertal 1.0 - 3.5 1.0 - 3.5
Adult 3.0 - 10.0 Follicular: 3 - 11
    Mid-cycle: 18 - 70
    Luteal: 2 - 11

Males: Increase begins at 2 weeks to 3.0 - 22 mIU/mL. Declines to prepubertal levels by 1 year.

Females: Increase by 2 months to 1.8 - 13 mIU/mL. Declines to prepubertal levels by 1 year.
 

Methodology

Method: Chemiluminescence by Vitros 3600

Analytical Volume: 0.200 mL

Limitations: Turbidity may affect results.

CPT Codes

83002