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Pituitary Hormone Panel (Pituitary Function Profile)

Published: August 9, 2026Updated: August 16, 2026

This test measures key hormones produced by your pituitary gland, which controls many important functions in your body, including growth, metabolism, and hormone balance.

Quick summary

["Your pituitary hormones help regulate critical bodily processes—this test helps assess potential imbalances or disorders."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
42385-5
Short code
MR Brain+Pituitary+ST
Synonyms
MR Brain+Pituitary+ST
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
mr
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

What Hormones Are Tested?

This panel typically includes growth hormone (GH), prolactin, thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), and sometimes luteinizing hormone (LH) or follicle-stimulating hormone (FSH), depending on clinical indication. Some tests may also measure cortisol or insulin-like growth factor 1 (IGF-1).

Why Might You Need This Test?

Doctors may order this test if you have symptoms like unusual weight changes, fatigue, vision problems, irregular periods, or signs of hormone-related conditions such as pituitary tumors, diabetes insipidus, or Cushing’s disease.

How Is the Test Performed?

A blood sample is drawn from a vein in your arm. The sample is sent to a lab for analysis using immunoassay or similar methods to measure hormone levels.

What Do the Results Mean?

Results help identify whether hormone levels are too high or too low, which can indicate underlying conditions like tumors, infections, or genetic disorders. Your doctor will interpret results in the context of your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Pituitary Hormones

Frequently asked questions

How often will I need this test?
This test is often done once or multiple times depending on your symptoms, medical history, or treatment plan. Follow-up tests may be needed if initial results suggest an imbalance or if symptoms persist.
What are the most common causes of abnormal results?
Abnormal results may be caused by pituitary tumors, thyroid disorders, stress, certain medications, or conditions like hyperprolactinemia or hypopituitarism. Your doctor will discuss possible causes with you.
Can lifestyle changes affect these hormone levels?
Yes, lifestyle factors like diet, exercise, stress, and sleep can influence hormone levels. Avoiding caffeine or alcohol before the test may help ensure more accurate results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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