ATI-Dosages-by-Weight-Q-As Dosages by Weight 1. A nurse is about to give Amoxil 25mg/kg/day PO divided in equal doses every 8hr to a preschooler who weighs 43lbs. Available is suspension 250mg/5mL. How many mL should the nurse give per dose? Round to the nearest 10th . a. 43lbs x 0.453= 19.5kg b. 19.5kg x 25mg= 487.5mg/day or 162.5mg every 8hr (487.5/3) c. X= 5mL/ 250mg x 162.5mg d. X= 3.25= 3.3mL 2. A nurse is about to give Tobrex 2.5mg/kg IM to a preschooler who weighs 20kg. Available is injection 10mg/mL. How many mL should the nurse give per dose? Round to the nearest 10th . a. 2.5mg x 20kg= 50mg/kg b. 1mL/10mg x 50mg c. X= 5mL 3. A nurse is about to give EryPed 50mg/kg/day Po divided in equal doses every 6hr to a toddler who weighs 32lbs. Available is suspension 200mg/5mL. How many mL should the nurse give per dose? Round to the nearest 10th . a. 32lbs x 0.453= 14.5kgs b. 14.5kgs x 50mg= 725mg/day or 181.25mg every 6hr (725/4) c. X= 5mL/200mg x 120.8 mg d. X= 4.5mL 4. A nurse is about to give Kaon-Cl 5mEq/kg/day PO divided in equal doses every 6hrs to a child who weighs 64lb. Available is 40mEq/15mL. How many mL should the nurse give per dose? Round to the nearest 10th . a. 64lbs x 0.453= 29.1kg b. 5mEq x 29.1kg= 145.5mEq c. 29.1kg x 5mEq= 145.5m/Eq/day or 36.375mEq every 6hr d. X= 15mL/ 40mEq x 36.375mEq e. X= 14mL 5. A nurse is about to give Amoxil 30mg/kg/day PO divided into equal doses every 12hr to an infant who weighs 5.5kg. Available is suspension 125mg/5mL. How many mL should the nurse give per dose? Round to the nearest 10th . a. 30mg x 5.5kg= 165mg b. 5.5kg x 30mg= 165mg/day or 82.5 every 12hr (165/2) c. 5mL/125mg x 82.5mg d. X= 3.3mL 6. A nurse is about to give Fortaz 30mg/kg/day IV bolus divided into equal doses every 8hr to a toddler who weighs 22lbs. Available is injection 280mg/mL. How many mL should the nurse give per dose? Round to the nearest 10th . a. 22lbs x 0.453= 9.9kg b. 9.9kg x 280mg= 297mg/day or 99mg/hr c. 1mL/280mg x 99mg d. X= 0.4mL 7. A nurse is converting an infant’s weight from lb to kg. If the infant weighs 6lb 2oz, she weighs how many kg? Round to the nearest 10th . a. 16oz= 1lb b. 2oz/16oz= 0.125lbs, round to 0.1 c. Equals 6.1lbs d. 6.1lbs x 0.453= 2.8kg
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