Biochemistry Flashcards
1
Q
What is the equation for total calcium?
A
PPFMA x0.02
Plasma calcium + (40 -albumin x 0.02)
2
Q
What is there low PTH but high calcium in hypercalcemia of malignancy?
A
No parallel rise in phosphate concentration • No rise in plasma alkaline phosphatase (usually seen due to osteoclast activity) – Humoral hypercalcaemia of malignancy is caused by synthesis of Parathyroid Hormone-Related Peptide (PTHrP) • Secreted in breast and certain lung tumours • Not detected by PTH assay
3
Q
A
