Am I doing this right?
Order: grain 1/100 for injection from a solution of grain 1/150 per mL. How much should be administered?
(1/100)/(1/150) x 1mL= 1.5mL
Order: Morphine grain 1/6 IM for pain. Available: Morphine grain 1/4 per mL. How many mL to administer?
(1/6 gr)/(1/4 gr) x 1mL= 0.66666667 = 0.67mL