Final answer:
To find out how many liters of fluids the patient would get over 12 hours, divide the amount of fluids every 4 hours by 1000, then multiply it by the number of times she gets fluids in 12 hours.
Step-by-step explanation:
To find out how many liters of fluids the patient would get over 12 hours, we need to first find out how many liters of fluids she gets every 4 hours. Given that she is given 500 ml every 4 hours, we can calculate the amount of fluids in liters by dividing 500 ml by 1000. So, she gets 0.5 liters of fluids every 4 hours.
Next, we need to find out how many times she gets fluids in 12 hours. Since there are 12 hours in 12/4=3 intervals of 4 hours, she gets fluids 3 times in 12 hours.
To calculate the total liters of fluids she gets in 12 hours, we need to multiply the amount of fluids every 4 hours (0.5 liters) by the number of times she gets fluids in 12 hours (3 times).
So, she would get a total of 1.5 liters of fluids over 12 hours.