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Dosage Calculation Practice Questions: Test Your Skills
Dosage calculations are a fundamental aspect of safe and effective medication administration in healthcare. Whether you're a student pursuing a healthcare career, a seasoned professional, or simply curious about medication safety, mastering dosage calculations is essential. This blog post provides a series of practice questions to test your understanding and reinforce your knowledge.
Practice Questions:
- Question 1: A doctor prescribes 500 mg of a medication to be administered intravenously. The available vial contains 1 gram of the medication. How many milliliters of the medication should be administered if the vial is labeled as 10 ml/gram?
- Question 2: A patient is to receive 250 mg of a medication every 6 hours. The medication is available in a 500 mg/5 ml solution. How many milliliters should be administered per dose?
- Question 3: A child weighs 22 pounds and needs to receive 10 mg/kg of a medication. How many milligrams of medication should the child receive?
- Question 4: A patient is prescribed 1000 units of heparin subcutaneously every 12 hours. The available vial contains 5000 units/ml. How many milliliters should be administered per dose?
- Question 5: A doctor prescribes 20 mg of a medication to be administered orally. The available tablets contain 5 mg each. How many tablets should be administered?
Answer Key:
- Answer: 5 ml. (Explanation: 1 gram = 1000 mg. Therefore, 500 mg is equal to 0.5 grams. Since the vial contains 10 ml/gram, 0.5 grams would require 5 ml (0.5 grams x 10 ml/gram = 5 ml)).
- Answer: 2.5 ml. (Explanation: The medication is available as 500 mg/5 ml. Therefore, 250 mg would be contained in 2.5 ml (250 mg / 500 mg/5 ml = 2.5 ml)).
- Answer: 100 mg. (Explanation: First, convert the child's weight from pounds to kilograms: 22 pounds / 2.2 pounds/kg = 10 kg. Then, multiply the child's weight in kilograms by the prescribed dosage: 10 kg x 10 mg/kg = 100 mg).
- Answer: 0.4 ml. (Explanation: The vial contains 5000 units/ml. To administer 1000 units, you would need 0.4 ml (1000 units / 5000 units/ml = 0.4 ml)).
- Answer: 4 tablets. (Explanation: Each tablet contains 5 mg, and the prescribed dose is 20 mg. Therefore, you would need 4 tablets (20 mg / 5 mg/tablet = 4 tablets)).
Additional Resources:
For further practice and learning, here are some additional resources:
Conclusion:
Dosage calculations are a crucial skill for healthcare professionals. By practicing these questions, you can enhance your understanding and ensure accurate medication administration. Remember to always double-check your calculations and consult with a healthcare professional for any questions or concerns.