What are the limitations of the hypomagnesaemia refractory hypocalcaemia checker?

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

How does the hypomagnesaemia refractory hypocalcaemia checker compare to other Endocrinology scores?

The hypomagnesaemia refractory hypocalcaemia checker 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.

Hypomagnesaemia refractory hypocalcaemia checker Score and Guidance

Q: Is the hypomagnesaemia refractory hypocalcaemia checker free to use?

Yes. OpiCalc provides the hypomagnesaemia refractory hypocalcaemia checker completely ad-free and optimized for mobile bedside use, ensuring you can calculate medical risk swiftly and without distraction.

CLINICAL REFERENCE

CLINICAL INSIGHT

When to Use

Evaluating refractory hypokalaemia or hypocalcaemia.
Monitoring patients on long-term PPIs or diuretics.
Workup of unexplained arrhythmias (specifically Torsades).
Screening in alcohol use disorder or malabsorption syndromes.

CLINICAL INSIGHT

How it Works

Mg (mg/dL) Thresholds

Category	Mg (mg/dL)	Mg (mmol/L)
Optimal	1.8 – 2.4	0.75 – 1.0
Mild	1.4 – 1.8	0.6 – 0.75
Moderate	1.0 – 1.4	0.4 – 0.6
Severe	< 1.0	< 0.4

CLINICAL INSIGHT

Practical Pearls

The Intracellular Ghost

99% of total body magnesium is intracellular (mostly in bone and muscle). Serum magnesium levels can be "normal" even in the face of significant total-body depletion. If clinical suspicion is high, consider empiric replacement.

Potassium / Calcium Resistance

Magnesium is a co-factor for the Na+/K+-ATPase and for PTH secretion. Hypomagnesaemia causes renal potassium wasting and inhibits PTH. Do not attempt to fix K+ or Ca2+ without first correcting Mg2+.

CLINICAL INSIGHT

Evidence Base

Primary Source

Magnesium and Human Health: Perspectives and Research Directions.

Al Alawi AM, et al.Int J Endocrinol2018

When to Use

When to Use

How it Works

Mg (mg/dL) Thresholds

Practical Pearls

The Intracellular Ghost

Potassium / Calcium Resistance

Evidence Base

Primary Source

Hypomagnesaemia & Refractory Hypocalcaemia Checker

When to Use

When to Use

How it Works

Mg (mg/dL) Thresholds

Practical Pearls

The Intracellular Ghost

Potassium / Calcium Resistance

Evidence Base

Primary Source

Hypomagnesaemia & Refractory Hypocalcaemia Checker

Clinical Evidence and Methodology

When to Use

When to Use

How it Works

Mg (mg/dL) Thresholds

Practical Pearls

The Intracellular Ghost

Potassium / Calcium Resistance

Evidence Base

Primary Source

Hypomagnesaemia & Refractory Hypocalcaemia Checker

Clinical Evidence and Methodology

When to Use

When to Use

How it Works

Mg (mg/dL) Thresholds

Practical Pearls

The Intracellular Ghost

Potassium / Calcium Resistance

Evidence Base

Primary Source

Hypomagnesaemia & Refractory Hypocalcaemia Checker