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Flashcards in deck 3 Deck (15)
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1

how often should an IV catheter be flushed?

every 4-6 hours

2

what is the maintenance fluid requirement? ...ml/kg/24hrs

50

3

what do isotonic fluids have the same tonicity as?

plasma

4

an increase in pcv can indicate what?

dehydration

5

what is the normal fluid losses through urine per day?

20ml/kg/day

6

the body has 3 response mechanisms to hypovolaemia, what are they?

vasoconstriction, aldosterone retains sodium, release of rbc from bone marrow

7

magnesium is vital in what?

vital to normal cardiac and neuromuscular function

8

almost all of potassium in the body is found where?

intracellular fluid

9

any condition that is likely to cause polyuria is likey to decrease what?

potassium levels, as it is poorly conserved by the kidneys

10

vomiting and diarrhoea can lead to a decrease in?

HCO3- bicarbonate, it is found largely in the GI tract

11

if hydrostatis pressure exceeds the oncotic pressure, the fluid what?

moves out of the space

12

if oncotic pressure exceeds the hypostatic pressure, fluid what?

moves into the space

13

what is osmolality?

a measure of concentration of the smaller molecules in the fluid, such as electrolytes, glucose and urea

14

systolic blood pressure is obtained when?

artieries are at their highest blood pressure, at the peak of ventricular contraction

15

diastolic blood pressure is obtained when?

artierial blood pressure is at its lowest during relaxation of the left ventricle