Does anyone still have bioassay for PTH?
I have a patient with steroid-induced osteopenia who had renal transplant in
1988. She is normocalcaemic with serum creat of 160-180umol/l. Her 25OHD is
a little low at 11nmol/l with modestly raised tALP at 310 u/l (80-280).
However PTH has been grossly elevated on 2 occasions 1 month apart [63 and
93pmol/l by Immulite method (RR:1.3-7.6)].I think this is too high for
straightforward secondary hyperparathyroidism and wonder if what is being
measured is biologically active.
"Dr Janet McIlroy"<[log in to unmask]
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