A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take?
I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help. thank you
The term "gr. ii." is an abbreviation for the Roman numeral "grain." In pharmacy, the unit of measurement "grain" (gr.) is used to measure the weight or dose of medication. In this case, "gr. ii." refers to a prescription that requires a dose of two grains of the medication.
To determine the number of tablets the patient should take, you need to convert the dose from grains to milligrams (mg) and then divide it by the strength of each tablet.
1 grain (gr.) = 64.79891 milligrams (mg) approximately.
So, for a dose of 2 grains:
2 grains = 2 * 64.79891 mg = 129.59782 mg (approximately)
Each tablet is available in a strength of 30 mg.
To calculate the number of tablets needed, divide the required dose (129.59782 mg) by the strength of each tablet (30 mg):
Number of tablets = 129.59782 mg / 30 mg ≈ 4.32
Since you can't take a fraction of a tablet, the patient should take 4 tablets.
Please note that it is important to verify this calculation with a healthcare professional or pharmacist to ensure accuracy and safety in taking medications.
To solve this problem, we need to convert "gr. ii" to milligrams (mg) in order to determine the number of tablets the patient should take.
First, let's clarify what "gr. ii" means. "gr." is an abbreviation for "grain," which is an old unit of measurement often used in prescriptions. In this context, "gr. ii" stands for "2 grains."
To convert grains to milligrams, we need to know that 1 grain is equivalent to approximately 64.8 milligrams. Therefore, 2 grains is equal to 2 x 64.8 milligrams, which is 129.6 milligrams.
Since the medication is available as 30mg tablets, we divide the total amount of medication required (129.6mg) by the dosage of each tablet (30mg) to determine the number of tablets needed.
Number of tablets = Total amount of medication required / Dosage of each tablet
= 129.6mg / 30mg
≈ 4.32 tablets (rounded to two decimal places)
The patient should take approximately 4.32 tablets. However, since we cannot take partial tablets, the patient should take 4 tablets. It's important to note that you should consult a healthcare professional to confirm the final dosage to take.