High School

A woman has a prescription for 32.2 mEq KCl PO. The pharmacy has 600 mg KCl controlled-release tablets. How many tablets will provide this dose?

(Note: You might need the molecular weight (MW) of KCl to calculate the exact number of tablets needed.)

Answer :

The woman would need 4 tablets of 600 mg KCl controlled-release tablets to provide the prescribed dose of 32.2 meq KCl.

To determine the number of tablets needed, we need to convert the prescribed dose from milliequivalents (meq) to milligrams (mg) and then divide it by the dosage strength of the tablets.

1. Convert meq to mg:

- The molecular weight (MW) of KCl is 74.55 g/mol.

- Convert meq to mmol by dividing by the valence (KCl has a valence of 1): 32.2 meq / 1 = 32.2 mmol.

- Convert mmol to mg by multiplying by the MW: 32.2 mmol * 74.55 mg/mmol = 2400.71 mg.

2. Determine the number of tablets:

- The available dosage strength is 600 mg/tablet.

- Divide the total dose (2400.71 mg) by the dosage strength of each tablet: 2400.71 mg / 600 mg/tablet = 4 tablets.

To know more about milliequivalents (meq)

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