Prolactin, Four Specimens
Use
The Prolactin, Four Specimens test is designed to evaluate prolactin levels over multiple samples to monitor the body's hormone regulation and pituitary function. Serial monitoring can highlight variations in prolactin levels that might indicate underlying endocrine disorders, aiding in the diagnosis and management of conditions like prolactinoma, hypothyroidism, and more. This test is integral for patients presenting with symptoms of hyperprolactinemia, which could affect reproductive, physical, and emotional health.
Special Instructions
Please refer to the directions for Sequential Sampling. This involves collecting multiple specimen samples in a specific sequence to accurately measure variations in prolactin secretion.
Limitations
The test is dependent on adherence to the sequential sampling instructions, as variations in collection timing or handling may influence the accuracy of results. It may not identify the precise cause of altered prolactin levels, such as differentiating pituitary adenomas from non-tumorous causes of increased hormone production. Additionally, some medications and clinical conditions can affect prolactin levels and should be considered when interpreting results.
Methodology
Immunoassay
Biomarkers
LOINC Codes
- 12231-7
- 12231-7
- 25736-0
- 12823-1
- 12824-9
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided
Container
Standard serum separation tube
Collection Instructions
Collect each specimen in sequential order as per provided instructions. Ensure proper labeling of each sample indicating the sequence.
Patient Preparation
Patient may need to avoid certain medications or fasting as instructed prior to sample collection.
Storage Instructions
Store and transport samples at refrigerated temperatures if not processed immediately.
Causes for Rejection
Improperly labeled specimens, samples collected out of order, or degraded samples.