4. You have just diagnosed copper storage hepatopathy in one of your clients Bedlington Terriers. With regards to dietary management of the disease, you want to feed a veterinary therapeutic diet that contains about 5.0 mg/kg copper on a dry matter basis. You have another prescription product (Food A) you are considering that reports the copper content to be 0.00045% on a dry matter basis. How much copper (expressed as mg/kg) is in Food A?

a. 45 mg/kg diet

b. 0.45 mg/kg diet

c. 4.5 mg/kg diet

d. 0.045 mg/kg diet

5. One year later, your patient has decided to not eat the prescribed therapeutic diet anymore (Food A). The energy density of Food A is 4.44 kcal/g of diet (dry matter). You have to consider a new product designed to manage liver disease, but the company only reports the copper content on a calorie basis 0.10 mg Cu/1000 kcal (dry matter) of diet. You are curious how the copper concentrations compare between the two products and realize that you must determine the copper content per 1000 kcals in the dogs current diet (Food A) to do so, so what is the copper content of your patients current diet, expressed as _____ mg Cu/1000 kcals?

a. 4.5 mg Cu/1000 kcal

b. 2.0 mg Cu/1000 kcal

c. 1.01 mg Cu/1000 kcal

d. 0.10 mg Cu/1000 kcal