A 14 kg dog needs a CRI of furosemide 5%. The dose will be 0.25 mg/kg/hr. The CRI should last for 8 hours, and the fluid rate is 5 ml/hr. How many milligrams of furosemide should be added to the fluids?
0.56 mg
5.6 mg
2.8 mg
28 mg
To calculate the amount of furosemide that should be added to the fluids, we need to use the following formula:
Dose (mg/hr) = Dose rate (mg/kg/hr) × Weight (kg) × CRI (%)
First, let's calculate the dose rate:
Dose rate = 0.25 mg/kg/hr
Weight = 14 kg
Dose rate = 0.25 mg/kg/hr × 14 kg = 3.5 mg/hr
Next, let's calculate the amount of furosemide needed for the CRI:
CRI (%) = 5%
Amount of furosemide needed = CRI (%) × Fluid rate (ml/hr)
Fluid rate = 5 ml/hr
Amount of furosemide needed = 5% × 5 ml/hr = 0.25 mg/hr
Finally, let's calculate the total amount of furosemide that should be added:
Total amount of furosemide = Dose rate (mg/hr) × Duration (hours) + Amount of furosemide needed
Duration = 8 hours
Total amount of furosemide = 3.5 mg/hr × 8 hours + 0.25 mg/hr = 28 mg + 0.25 mg = 28.25 mg
Therefore, the correct answer is 28 mg.