Follicle Stimulating Hormone (FSH) with Triple Bolus Testing in Serum/Plasma
This test measures Follicle Stimulating Hormone (FSH), a hormone produced by the pituitary gland that plays a key role in reproductive health. The triple bolus method helps assess FSH levels over time to better understand hormone function.
["FSH levels can help diagnose fertility issues, hormone imbalances, or other reproductive health conditions."]
Key facts at a glance
- LOINC
- 40361-8
- Short code
- FSH 1h p Triple Bolus SerPl-aCnc
- Synonyms
- FSH 1h p Triple Bolus SerPl-aCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 85610
- SNOMED
- 396252006
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Performed
Your doctor may order this test if you have symptoms like irregular menstrual periods, difficulty becoming pregnant, or signs of hormonal imbalances. It may also be used to monitor conditions like polycystic ovary syndrome (PCOS) or evaluate pituitary gland function.
What to Expect Before the Test
No special preparation is needed. Blood will be drawn from a vein, usually in your arm. You may feel a slight pinch, but it typically doesn’t cause discomfort. If you’re on blood thinners, let your doctor know before the test.
How the Test Works
The triple bolus method involves drawing blood at three different times to measure FSH levels under different conditions. This helps provide a clearer picture of how your body responds to hormonal signals.
What the Results Mean
Results are interpreted by your healthcare provider based on your symptoms, medical history, and other test results. Abnormal levels may indicate conditions affecting fertility, hormone production, or reproductive health.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: FSH plays a critical role in regulating the menstrual cycle and sperm production. Elevated or low levels can signal potential issues with ovulation, ovarian function, or pituitary disorders, guiding treatment decisions for fertility or endocrine conditions.
Short name
FSH Triple Bolus Test
Frequently asked questions
What does a triple bolus test add compared to a single FSH measurement?
Can lifestyle factors like diet or stress affect FSH levels?
How soon will I get my results, and what should I do next?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy