Benign transient hyperphosphatasaemia

Common, typically young children with minor infections.

Due to decreased clearance? Increased production?!

Can be as high as 50x normal upper limit viz 10 000+!  Can last up to 6 months.

Characteristic iso enzyme pattern on electrophoresis.

Just show that other liver function tests normal, normal calcium/phosphate and no suspicion of myositis, rickets.

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