Answer:
3. To calculate the amount of NS to be administered, we need to first determine the total dose required based on the patient's weight:
18.2 kg x 20 ml/kg = 364 ml
Therefore, we need to administer 364 ml of NS.
To determine the infusion rate, we need to divide the total dose by the time of infusion:
364 ml / 30 min = 12.13 ml/min
So, the infusion rate is 12.13 ml/min.
4. Firstly, we need to convert the patient's weight from pounds to kilograms:
175 lb / 2.2 = 79.5 kg
The patient requires dopamine at a rate of 3 mcg/kg/min, so we need to calculate the total dose required based on the patient's weight:
79.5 kg x 3 mcg/kg/min = 238.5 mcg/min
To convert mcg to mg, we need to divide by 1000:
238.5 mcg/min / 1000 = 0.2385 mg/min
We know the concentration of the dopamine drip is 800 mg/500 ml, so we can use this information to calculate the infusion rate:
500 ml x 0.2385 mg/min / 800 mg = 0.148 ml/min
Therefore, the patient will receive 0.148 ml of dopamine per minute, or 8.88 ml per hour.
Step-by-step explanation: