Dosage Calculation and Measurement Flashcards
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Read the first 7 Dosage Calculation and Measurement flashcards as text
A patient is ordered 500 mg of a medication. The available tablets are 250 mg each. How many tablets should be administered?
Answer: 2 tablets
500 mg ÷ 250 mg per tablet = 2 tablets.
Which measuring tool is most accurate for measuring liquid medications less than 5 mL?
Answer: An oral syringe
Oral syringes provide the most accurate measurement for small liquid volumes.
A physician orders 1.5 g of a medication. The medication is available as 500 mg tablets. How many tablets are needed?
Answer: 3 tablets
1.5 g = 1500 mg; 1500 mg ÷ 500 mg = 3 tablets.
How many milliliters are in one tablespoon?
Answer: 15 mL
One tablespoon equals 15 mL.
A medication order reads: give 0.5 mg. The label states 1 mg/2 mL. How many mL should be given?
Answer: 1 mL
Using D/H × V: (0.5 ÷ 1) × 2 = 1 mL.
A resident must take medication every 8 hours. If the first dose is given at 6:00 AM, when is the next dose due?
Answer: 2:00 PM
6:00 AM + 8 hours = 2:00 PM.
Which abbreviation indicates a medication should be given twice daily?
Answer: BID
BID (bis in die) means twice daily.
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