Answer :
Answer:
To calculate the number of 750 mg KTAB tablets a patient should take each day to deliver 40 milliequivalents (mEq) of potassium (K+), we need to first determine the number of millimoles (mmol) of potassium required and then convert that to mEq.
Here's the process step by step:
**Step 1: Calculate the Millimoles of Potassium (K+) Required**
Given that the molecular weight of potassium chloride (KCl) is 74.5 g/mol, we can calculate the millimoles of potassium required as follows:
Millimoles of potassium required = Milliequivalents of potassium / Equivalent weight of potassium
Millimoles of potassium required = 40 mEq / 1
Millimoles of potassium required = 40 mmol
**Step 2: Convert Millimoles to Milligrams**
Since we know that 1 mmol of K+ weighs 74.5 mg (molecular weight of K+), we can calculate the milligrams of potassium required:
Milligrams of potassium required = Millimoles of potassium required × Molecular weight of potassium
Milligrams of potassium required = 40 mmol × 74.5 mg/mmol
Milligrams of potassium required = 2980 mg
**Step 3: Calculate the Number of Tablets**
Each KTAB tablet contains 750 mg of potassium chloride. To find out how many tablets are needed, divide the total milligrams required by the amount per tablet:
Number of tablets = Total milligrams required / Milligrams per tablet
Number of tablets = 2980 mg / 750 mg/tablet
Number of tablets ≈ 3.973
Since you cannot take a fraction of a tablet, the patient should take 4 tablets each day to deliver 40 milliequivalents of potassium.
In summary, the patient should take 4 KTAB tablets (each containing 750 mg of potassium chloride) each day to deliver approximately 40 milliequivalents of potassium.
Final answer:
The patient should take approximately 4 KTAB tablets each day to deliver 40 milliequivalents of potassium chloride.
Explanation:
To calculate the number of KTAB tablets needed to deliver 40 milliequivalents of potassium chloride, we need to convert the milliequivalents to grams and then divide it by the weight of potassium chloride in each tablet.
First, let's convert 40 milliequivalents to grams. Since the molecular weight of potassium chloride is 74.5 g/mol, we can use the formula:
grams = milliequivalents * (molecular weight / 1000)
Substituting the values, we get:
grams = 40 * (74.5 / 1000) = 2.98 grams
Now, we divide the grams of potassium chloride needed by the weight of potassium chloride in each KTAB tablet:
number of tablets = grams / weight of each tablet
Since each KTAB tablet contains 750 mg (0.75 grams) of potassium chloride, we can calculate:
number of tablets = 2.98 / 0.75 = 3.97 tablets
Therefore, the patient should take approximately 4 KTAB tablets each day to deliver 40 milliequivalents of potassium chloride.
Learn more about potassium chloride here:
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