QuestionSBA
QuestionChoice
Although the parathyroid gland has 'thyroid' in the name, it does not contribute to the production of thyroid hormones. Therefore unless there was co-existent thyroid disease, thyroid function tests would be normal.
10005515
e
High serum thyroxine
QuestionChoice
In primary hyperparathyroidism, there is excess production of PTH which causes bone resorption, increased calcium reabsorption in kidneys and increased absorption of calcium from the small intestine indirectly via vitamin D synthesis which raises serum calcium.
10005511
a
High serum calcium
QuestionChoice
In primary hyperparathyroidism, there is excessive production of parathyroid hormone(PTH) which increases serum calcium. There is low serum calcium in secondary hyperparathyroidism.
10005513
c
Low serum calcium
QuestionChoice
In primary hyperparathyroidism serum phosphate is typically low as PTH decreases renal reabsorption of phosphate, lowering serum levels.
10005514
d
High serum phosphate
QuestionChoice
This would suggest Stage 3b chronic kidney disease, which causes secondary and then tertiary hyperparathyroidism due to chronically low calcium.
10005512
b
eGFR 30ml/min/1.73m^2
Concept
Chapter
2693
4416
Hyperparathyroidism
Topic
167
Endocrine physiology
13649
A woman is being seen by her GP as her recent blood results suggest she has primary hyperparathyroidism.

Which of these results would have prompted this suspicion?
a