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Test Description
The 17-Hydroxy Progesterone (17-OHP) test is a laboratory analysis that measures the levels of 17-hydroxyprogesterone in dried blood samples.
This hormone is primarily produced by the adrenal glands and is involved in the synthesis of cortisol and androgens.
The test is particularly useful in diagnosing conditions related to adrenal gland function, including congenital adrenal hyperplasia (CAH).
Indications of the 17-Hydroxy Progesterone, Dried Blood Test
The 17-OHP test is indicated for:
- Newborn Screening: To detect congenital adrenal hyperplasia in infants, especially those with ambiguous genitalia.
- Evaluation of Adrenal Disorders: To assess individuals showing symptoms of adrenal insufficiency or excess androgen production, such as:
- Excessive hair growth (hirsutism)
- Deepening of the voice
- Irregular menstruation or infertility
- Monitoring Treatment: To evaluate the effectiveness of treatment for adrenal disorders.
Patient Preparation/Instructions
- Medication Review: Patients should inform their healthcare provider about any medications they are taking, as certain drugs can affect hormone levels. It may be necessary to pause some medications prior to testing.
- Timing of Sample Collection: For women, it is often recommended to collect samples during specific phases of the menstrual cycle (early or mid-follicular phase) to ensure accurate results.
Typical Reference Values
Normal reference ranges for 17-OHP levels vary by age and sex:
- Newborns (>24 hours old): Less than 400 to 600 ng/dL (12.12 to 18.18 nmol/L)
- Children (pre-puberty): Approximately 100 ng/dL (3.03 nmol/L)
- Adults: Less than 200 ng/dL (6.06 nmol/L)
These values can vary slightly between laboratories, so it’s essential to discuss results with a healthcare provider.
Turnaround Time
The results for the 17-Hydroxy Progesterone test typically take a few days to process, depending on the laboratory’s workload and testing methods.
How To Order This Test
To order the 17-Hydroxy Progesterone test, please click the “Order Test” button and add it to your cart. This will initiate the process for obtaining your dried blood sample and receiving your results.
