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Hormones

ACTH (Adrenocorticotropic Hormone)

ACTH is a pituitary hormone that controls cortisol production by your adrenal glands. Monitoring ACTH levels as part of your health routine may help provide early insights into how well your stress response system is functioning.

Doctor's Assessment Included

Reference Ranges

See the value that applies to you:

Choose male or female — this range differs by sex.

Enter your age — this range changes with age.

This range also depends on context such as cycle phase or sample material; the highlighted rows apply to your group.

Male Your group
pmol/l
Low 1.6 Normal 13.9 High
Female Your group
pmol/l
Low 1.6 Normal 13.9 High

Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.

Check your own value

What It Measures

This test measures the level of ACTH in your blood. Results may help evaluate how well your pituitary gland communicates with your adrenal glands to regulate cortisol production and maintain hormonal balance throughout the day.

Why It Matters

Tracking ACTH levels may help identify early signs of pituitary or adrenal imbalance before symptoms become pronounced. Understanding your baseline could support proactive health decisions. Your healthcare provider can guide you through the results.

When to Test

ACTH testing is typically recommended in the early morning, when levels are naturally at their peak. Your healthcare provider may suggest this test if you show signs of adrenal or pituitary dysfunction, or unexplained fatigue.

Symptoms

Low Levels

Some people may experience fatigue, muscle weakness, weight loss, or low blood pressure when ACTH levels are below the expected range. These symptoms could suggest reduced adrenal stimulation. A healthcare provider can help determine the underlying cause.

High Levels

Some people may experience weight gain, skin changes, high blood pressure, or mood disturbances when ACTH levels are elevated. High levels could suggest overstimulation of the adrenal glands. Discuss your results with your healthcare provider.

Lifestyle Tips

Maintaining a consistent sleep schedule, managing stress through mindfulness or exercise, and eating a nutrient-rich diet may support healthy pituitary-adrenal function. Avoid excessive caffeine and alcohol. Always consult your healthcare provider for personalized advice.

Frequently Asked Questions

What does ACTH do?
ACTH signals your adrenal glands to produce cortisol, helping regulate your body's stress response.
Why is morning testing preferred?
ACTH levels follow a daily rhythm and are typically highest in the early morning hours.
Can stress affect ACTH levels?
Yes, physical or emotional stress may temporarily increase ACTH production from the pituitary gland.

Test Products

This marker is included in the following test panels.

ACTH (Adrenocorticotropic Hormone)

€49,-