What are the limitations of the hypopituitarism axis checklist?

While the hypopituitarism axis checklist is highly validated, it should not replace clinical judgment. OpiCalc provides the latest evidence-based limitations for the hypopituitarism axis checklist to ensure safe bedside use and optimal diagnostic accuracy.

How does the hypopituitarism axis checklist compare to other Endocrinology scores?

The hypopituitarism axis checklist is a gold-standard diagnostic tool. OpiCalc provides side-by-side clinical guidance to help clinicians choose the most specific evidence-based tool for their patient's presentation.

Is the hypopituitarism axis checklist free to use?

Yes. OpiCalc provides the hypopituitarism axis checklist completely ad-free and optimized for mobile bedside use, ensuring you can calculate medical risk swiftly and without distraction.

Hypopituitarism axis checklist Diagnostic Pathway

CLINICAL REFERENCE

CLINICAL INSIGHT

When to Use

Systematic workup of patients with known pituitary tumors (adenomas).
Evaluating suspected "panhypopituitarism" following brain radiation, trauma (TBI), or Sheehan syndrome.
Initial screening for secondary (central) endocrine deficiencies.

CLINICAL INSIGHT

How it Works

Screening Patterns

Axis	Primary Screening Test	Confirmatory Test
Adrenal	8AM Cortisol (≤ 3 µg/dL is definite)	ACTH Stimulation Test
Thyroid	TSH + Free T4	TRH test (rarely used)
Gonadal	FSH, LH + Testosterone or Estradiol	GnRH stimulation (pediatrics)
Growth Hormone	IGF-1 (Age/Sex matched)	Glucagon or Insuln Tolerance Test
Posterior	Urine/Serum Osmolality	Water Deprivation Test

CLINICAL INSIGHT

Practical Pearls

Order of Replacement (CRITICAL)

CORTISOL MUST BE REPLACED FIRST. In patients with dual deficiency (ACTH and TSH), thyroid hormone replacement increases the metabolic clearance of cortisol. If cortisol is not replaced before starting levothyroxine, the patient may be thrust into an acute adrenal crisis.

Interpretation Note

The hallmark of secondary hypopituitarism is a "low or inappropriately normal" stimulating hormone (e.g., TSH) in the setting of low peripheral hormone (e.g., Free T4).

CLINICAL INSIGHT

Evidence Base

Primary Source

Hormonal Replacement in Hypopituitarism in Adults: An Endocrine Society Clinical Practice Guideline.

Fleseriu M, et al.J Clin Endocrinol Metab2016

When to Use

When to Use

How it Works

Screening Patterns

Practical Pearls

Order of Replacement (CRITICAL)

Interpretation Note

Evidence Base

Primary Source

Hypopituitarism Axis Checklist

When to Use

When to Use

How it Works

Screening Patterns

Practical Pearls

Order of Replacement (CRITICAL)

Interpretation Note

Evidence Base

Primary Source

Hypopituitarism Axis Checklist

Clinical Evidence and Methodology

When to Use

When to Use

How it Works

Screening Patterns

Practical Pearls

Order of Replacement (CRITICAL)

Interpretation Note

Evidence Base

Primary Source

Hypopituitarism Axis Checklist

Clinical Evidence and Methodology

When to Use

When to Use

How it Works

Screening Patterns

Practical Pearls

Order of Replacement (CRITICAL)

Interpretation Note

Evidence Base

Primary Source

Hypopituitarism Axis Checklist