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There are 500 mg of potassium in 1 cup (240 ml) of orange juice. Your renal patient must monitor their potassium intake so that it does not exceed 2 mg per kg of body weight per day from orange juice alone.

How much juice (in ml) can this patient have per day if the patient weighs 135 lbs?

Answer :

Final answer:

The renal patient who weighs 135 lbs (or about 61.36 kg) should not consume more than approximately 58.73 ml of orange juice per day in order to keep his potassium intake from the juice under 2 mg per kg of body weight.

Explanation:

To answer this question, you first need to convert the patient's weight from pounds to kilograms because the potassium intake limit is given in mg/kg/day. There are approximately 2.2 lbs per kg, so the patient's weight in kg is 135 lbs divided by 2.2, which is approximately 61.36 kg.

The maximum potassium that the patient can have from orange juice per day would then be 2 mg/kg/day multiplied by 61.36 kg, which equals 122.72 mg/day.

Since there are 500mg of potassium in 240 ml of orange juice, to calculate the amount of juice the patient can have per day, you divide the maximum amount of potassium the patient can have per day (122.72 mg) by the concentration of potassium in the orange juice (500 mg per 240 ml). This calculation gives the volume of orange juice in liters, but the question asks for the answer in ml, so we multiply by 1000 to convert from liters to milliliters.

You will find that the patient can have approximately 58.73 ml of orange juice per day. Therefore the patient's intake of orange juice should not exceed this amount in order to keep the potassium levels under control considering the patient's weight and the potassium concentration in orange juice.

Learn more about Dietary Restrictions Based on Weight here:

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Rewritten by : Barada

Answer:

The patient can take 58.7904 ml of juice daily

Step-by-step explanation:

There is 500 mg of potassium in 1 cup(240 ml) of orange juice. The amount of potassium found in 240 ml of orange juice is 500 mg.

Let us convert the patient body weight to kg .

1 kg = 2.20462 Ib

? kg = 135 Ib

cross multiply

135/2.20462 = 61.2350427738 ≈ 61.24 kg

The patient weight in kg is 61.24.

The patient limits is 2 mg per kg of body weight per day from fruit juice. The patient limits with a weight of 61.24 kg will be 61.24 × 2 = 122.48 mg of potassium.

500 mg of potassium is in 240 ml of orange juice.

122.48 mg of potassium is ? of ml of orange juice

cross multiply

ml of orange juice = (122.48 × 240)/500

ml of orange juice = 29395.2
/500

ml of orange juice = 58.7904 ml

The patient can take 58.7904 ml of juice daily