Students General Students
Published Jul 28, 2008
I was able to get all of the other problems right except for this one: Order : 500 mg Available: 1g Directions: reconstitute with 2.5ml normal saline to yield 3 ml worth a concentration of 330 mg/ml. I know that the correct answer is 1.5 ml. The only equation I could come up with to get this answer was 1000 mg/3 ml X 500 mg/x ml which would be available/yield X order/x ml.Is this the correct way to set up this problem or am I missing something. If anyone can help it will help me out with my test anxiety:confused:
Daytonite, BSN, RN
1 Article; 14,603 Posts
order : 500 mg (dose desired)
available: 1g (dose on hand)
directions: reconstitute with 2.5ml normal saline to yield 3 ml (amount the dose on hand comes in) worth a concentration of 330 mg/ml. (all the rest of the information about reconstitution is unnecessary to the calculation of the dosage for this particular problem!)