Question

1. A renal patient is on a low potassium diet, which food would be the highest source of potassium and the WORST choice for this patient to consume?

a) 1/4 cup plain yogurt

b) 6 oz tuna

c) 1 cup bananas

d )1 cup lentils

2. Transferrin is our body’s major transport protein for iron while --- is a major storage protein for iron

a) hemoglobin

b) heme

c) hemosiderins

3. Low levels of magnesium in body will cause --- calcium to rise resulting in hypertension and –

a) extracellular, muscle cramps

b) intracellular, muscle cramps

c) intracellular, vasodilation

d) extracellular, heart attacks

4. Hyperkalemia from poorly functioning kidneys can result in

a) memory problems

b) headache

c) muscle cramps

d) death

Answer 1

Ans) 1) 6 oz tuna

Explaination:

Meaty fish like halibut and tuna have nearly 500 mg of potassium per 3 ounce serving have plenty of potassium.

2) c) hemosiderins

Explaination:

Iron is stored, mostly in the liver, as ferritin or hemosiderin. Ferritin is a protein with a capacity of about 4500 iron (III) ions per protein molecule. This is the major form of iron storage.

3) b) intracellular, muscle cramps

Explaination:

- High iCa(2 + ) and high cellular Na:K ratio both occur when cellular magnesium becomes too low and the Mg-ATP driven sodium-potassium pump and calcium pump become functionally impaired.

- High iCa(2+) has several vasoconstrictive effects which lead to hypertension, an indirect result of low magnesium status. Dietary calcium is directly proportional to dietary magnesium.

4) d. Death

Explaination:

Hyperkalemia: too much potassium in blood. The body needs a delicate balance of potassium to help the heart and other muscles work properly. But too much potassium in blood can lead to dangerous, and possibly deadly, changes in heart rhythm