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HelpTest Code LAB87 Luteinizing Hormone
Clinical System Name
Luteinizing Hormone
Synonyms
LH
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 | 24 h |
| separated serum/plasma | Room temp | 2 h |
| Refrigerated | 7 d | |
| Frozen -20 C | 6 m |
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
CPT Codes
83002
Methodology
Method: Chemiluminescent microparticle immunoassay (CMIA) by Abbott Alinity i
Analytical Volume: 0.200 mL
Limitations: Turbidity may affect results.
Reference Range
LHtransitioned platforms from Ortho Vitros 3600 to Abbott Alinity i on August 8, 2022.
There is a 25% negative bias with the new method.
| Age | Males (mIU/mL) | Females (mIU/mL) |
| 0 - 3 months | <3.8 | <2.4 |
| 3 months - <1 years | <2.9 | <2.9 |
| 1 - <10 yr | <0.3 | <0.3 |
| 10 - <15 yr | <4.3 | |
| 10 - <13 yr | <4.3 | |
| 13 - <15 yr | 0.4 - 6.5 | |
| 15 - <17 yr | <4.8 | <13.1 |
| 17 - <19 yr | 0.9 - 7.1 | <8.4 |
| >19 yr | 0.6 - 12.1 | 0.6 - 9.0 |