5. fluid and electrolyte balance

Question 1

how is sodium excretion regulated by?

Answer 1

renin-angiotensin-aldosterone
natriuretic peptides
intrinsic renal mechanisms

Question 2

what system works to help dehydration/ hypovolaemia

Answer 2

renin-angiotensin-aldosterone

Question 3

what helps fluid overload

Answer 3

natriuretic peptides

Question 4

what na concentration is classified as hypOnatraemia

Answer 4

na < 135 mmol/L

Question 5

what symptoms present with mild hyponatraemia and what is the Na conc

Answer 5

130-135 mmol/L

asymptomatic

Question 6

what symptoms present with moderate hyponatraemia and what is the Na conc

Answer 6

121-129 mol/L

cramps, weakness, naesea

Question 7

what symptoms present with severe hyponatraemia and what is the Na conc

Answer 7

<120 mom/L

lethargy, headache, confusion

Question 8

what results in severe and rapidly evolving hyponatraemia

Answer 8

seizures
coma
respiratory arrest