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22842 Luteinizing Hormone (LH)

Luteinizing Hormone (LH)
Test Code: LH
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Plasma/Serum​ Lithium Heparin Plasma Separator Tube (PST)
 ​Lithium Heparin Green Top (GTT), Serum Separator Tube (SST), Red Top Tube (RTT)​ 1.0 mL​ 0.5 mL​ 0.3 mL​
Collection Processing Instructions
GTT/RTT- physically separate plasma or serum from contact with cells as soon as possible or before transport. 
Samples collected in a RTT must be removed from clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.​
Specimen Stability Information
Specimen Type Temperature Time
Plasma/Serum​ ​ Ambient​ 8 hours​
Refrigerated​ 2 days​
Frozen​ 6 months
Rejection Criteria

​Gross hemolysis

Marked Icterus

Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor-imaging studies. Fluorescein will interfere; specimens should not be drawn for 48 hours following fluorescein angiography for diabetic retinopathy.​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​
 Less than 2 hours​
 Immunoenzymatic assay/ Beckman Coulter Unicel DXI​ ​
Reference Range Information
Performing Location Reference Range
Marshfield​
​​Males:​
​

​1.2-8.6 mIU/mL
​Females:
​ ​​
​​​​​
​ ​ ​		​Mid follicular: 
​2.1-10.9 mIU/mL
​Mid-Cycle Peak: 
​19.2-103.0 mIU/mL
​Mid-Luteal:
​1.2-12.9 mIU/mL
​Post menopausal:
​10.9-58.6 mIU/mL

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83002 ​ ​ ​ ​ ​
Ordering Applications
Ordering Application Description
​Centricity ​Luteinizing Hormone
​Cerner ​Luteinizing Hormone
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Plasma/Serum​ Lithium Heparin Plasma Separator Tube (PST)
 ​Lithium Heparin Green Top (GTT), Serum Separator Tube (SST), Red Top Tube (RTT)​ 1.0 mL​ 0.5 mL​ 0.3 mL​
Collection Processing
GTT/RTT- physically separate plasma or serum from contact with cells as soon as possible or before transport. 
Samples collected in a RTT must be removed from clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.​
Specimen Stability Information
Specimen Type Temperature Time
Plasma/Serum​ ​ Ambient​ 8 hours​
Refrigerated​ 2 days​
Frozen​ 6 months
Rejection Criteria

​Gross hemolysis

Marked Icterus

Interference
Human Anti-Murine Antibodies (HAMA) may develop leading to test interference in patients receiving murine-based agents for chemotherapy or tumor-imaging studies. Fluorescein will interfere; specimens should not be drawn for 48 hours following fluorescein angiography for diabetic retinopathy.​
Reference Range Information
Performing Location Reference Range
Marshfield​
​​Males:​
​

​1.2-8.6 mIU/mL
​Females:
​ ​​
​​​​​
​ ​ ​		​Mid follicular: 
​2.1-10.9 mIU/mL
​Mid-Cycle Peak: 
​19.2-103.0 mIU/mL
​Mid-Luteal:
​1.2-12.9 mIU/mL
​Post menopausal:
​10.9-58.6 mIU/mL

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​
 Less than 2 hours​
 Immunoenzymatic assay/ Beckman Coulter Unicel DXI​ ​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83002 ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.