Common Biochemical Pictures Flashcards
High K+
High Urea
Low Na+
Addison’s
Low K+
High bicarbonate
High Na+
Cushing’s Syndrome
Low K+
High bicarbonate
Na+ normal or high
Conn’s Syndrome
High Na+
High plasma osmolality nd low urine osmolality
diabetes insipidus
Low Na+
Normal or low urea
normal or low creatinine
low plasma osmolality and high urine osmolalty
SIADH
High calcium
low or normal phosphate
high or normal alk phos
primary hyperparathyroidism
low calcium
high phosphate
normal alk phos
hypothyroidism
low calcium
high phosphate
normal or high alk phos
renal failure
What are some renal causes of hyponatraemia?
Addison's Disease SIADH Nephrotic Syndrome Diuretic excess Renal Failure
What are some renal causes of hyperkalaemia?
Renal failure
Addison’s disease
Naphrotoxic drugs (ACEs, NSAIDs)
What are some renal causes of hypokalaemia?
Diuretics
Cushing’s Syndrome
Conn’s Syndrome (Hyperaldosteronism)
Excess ACTH
Causes of hyperuriccaemia?
Diuretics
CKD
Hyperparathyroidism
Causes of hypernatraemia?
Cushing’s
Conn’s
Diabetes insipidus
