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Oefentoets (Diagnostische toets) Verpleegkundig rekenen
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Er moet 3 liter fysiologische zoutoplossing (0,9%) gemaakt worden. In voorraad is een zoutoplossing van 10%.
Bereken hoeveel ml 10% zoutoplossing je moet nemen en hoeveel aqua dest e moet toevoegen.
Er moet 3 liter fysiologische zoutoplossing (0,9%) gemaakt worden. In voorraad is een zoutoplossing ...
0,9 / 10 x 3000 ml = 270 ml van 10%
Toevoegen: 3000 – 270 = 2730 ml aqua dest
Iemand moet gedurende 7,5 uur 4 liter zuurstof per minuut toegediend krijgen.
Bereken op welke stand de nanometer van een 10 liter zuurstofcilinder minstens moet staan om voor deze periode voldoende zuurstof te leveren.
Iemand moet gedurende 7,5 uur 4 liter zuurstof per minuut toegediend krijgen.
Bereken op welke stand...
Nodig: 7,5 x 60 x 4 = 1800 liter
P x V = 1800 liter p x 10 = 1800 p = 1800 / 10 = 180 bar
De zuurstofdruk in een cilinder van 20 liter is 60 bar. Toe te dienen is 2 liter / minuut.
Hoe lang kun je met de voorraad doen?
De zuurstofdruk in een cilinder van 20 liter is 60 bar. Toe te dienen is 2 liter / minuut.
Hoe lang ...
20 x 60 = 1200 liter
Toe te dienen: 2 liter / minuut
1200 / 2 x min = 600 minuten = 10 uur
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