Metabolic bone disease mnemonic

Biochemistry of metabolic bone disease

The mnemonic

Porosis normal, Malacia low, Paget ALP high

What each word stands for

  • Porosis normalOsteoporosis: calcium, phosphate and ALP normal
  • Malacia lowOsteomalacia and rickets: low vitamin D with raised ALP, often low calcium or phosphate
  • Paget ALP highPaget disease: markedly raised ALP with normal calcium and phosphate

Why it matters clinically

Helps interpret a typical biochemistry panel in a patient with bone pain.

Where it stops being reliable

Simplified; hyperparathyroidism and renal bone disease have their own patterns.

Teaching aid, still awaiting independent review. Confirm facts in a standard source.

More mnemonics

Common questions

What is the Metabolic bone disease mnemonic?

Porosis normal, Malacia low, Paget ALP high. It helps you recall: Biochemistry of metabolic bone disease.

What does "Porosis normal" stand for?

Osteoporosis: calcium, phosphate and ALP normal

What does "Malacia low" stand for?

Osteomalacia and rickets: low vitamin D with raised ALP, often low calcium or phosphate

What does "Paget ALP high" stand for?

Paget disease: markedly raised ALP with normal calcium and phosphate

What are all the parts of the Porosis normal, Malacia low, Paget ALP high mnemonic?

Porosis normal: Osteoporosis: calcium, phosphate and ALP normal; Malacia low: Osteomalacia and rickets: low vitamin D with raised ALP, often low calcium or phosphate; Paget ALP high: Paget disease: markedly raised ALP with normal calcium and phosphate.

Which topic does this mnemonic belong to?

It belongs to Metabolic bone disease in Orthopaedics.

Where does this mnemonic stop being reliable?

Simplified; hyperparathyroidism and renal bone disease have their own patterns.

How is this useful clinically?

Helps interpret a typical biochemistry panel in a patient with bone pain.

How do I make this mnemonic stick?

Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a Orthopaedics question about Metabolic bone disease.

Is this a standard mnemonic?

It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.