Problem 3
Read the dosage information or label given for the following problems. Express body weight conversion to the nearest tenth where indicated and dosages to the nearest tenth. Furadantin oral suspension \(25 \mathrm{mg}\) p.o. qoh is ordered for a child weighing 37.4 lb. Recommended dosage is \(5-7 \mathrm{mg} / \mathrm{kg} / 24\) hr divided qoh. Available: Furadantin oral suspension \(25 \mathrm{mg}\) per \(5 \mathrm{~mL}\). a. What is the child's weight in kilograms to the nearest tenth? b. What is the dosage range for this child? c. Is the dosage ordered safe? (Prove mathematically.) d. How many milliliters must be given per dosage to administer the ordered dosage? Calculate the dose if the order is safe.
Problem 8
Read the dosage information or label given for the following problems. Express body weight conversion to the nearest tenth where indicated and dosages to the nearest tenth. Keflex (cephalexin) suspension \(250 \mathrm{mg}\) p.o. qoh is ordered for a child weighing \(66 \mathrm{lb}\). The usual pediatric dosage is 25 to \(50 \mathrm{mg} / \mathrm{kg} /\) day in four divided dosages. Available: Keflex suspension \(250 \mathrm{mg}\) per \(5 \mathrm{~mL}\) a. Is the dosage ordered safe? (Prove mathematically.) b. How many milliliters would you need to administer one dosage? Calculate the dose if the order is safe.
Problem 9
Read the dosage information or label given for the following problems. Express body weight conversion to the nearest tenth where indicated and dosages to the nearest tenth. Streptomycin sulfate \(400 \mathrm{mg}\) IM daily is ordered for a child weighing \(35 \mathrm{~kg}\). The recommended dosage is 20 to \(40 \mathrm{mg} / \mathrm{kg} /\) day once daily. a. Is the dosage ordered safe? (Prove mathematically.) b. A \(1-g\) vial of streptomycin sulfate is available in powdered form with the following instructions: Dilution with \(1.8 \mathrm{~mL}\) of sterile water will yield \(400 \mathrm{mg}\) per \(\mathrm{mL}\). How many milliliters will you need to administer the ordered dosage? Calculate the dosage if the order is safe.
Problem 10
Read the dosage information or label given for the following problems. Express body weight conversion to the nearest tenth where indicated and dosages to the nearest tenth. A child weighing 46 lb has an order for ranitidine (Zantac) \(20 \mathrm{mg}\) IV \(\mathrm{q} 8 \mathrm{~h}\). Is the dosage ordered safe? (Prove mathematically.) Available: Pediatric Use: While limited data exist on the administration of IV ranitidine to children, the recommended dose in pediatric patients is for a total daily dose of 2 to \(4 \mathrm{mg} / \mathrm{kg},\) to be divided and administered every 6 to 8 hours, up to a maximum of 50 mg given every 6 to 8 hours. This recommendation is derived from adult clinical studies and pharmacokinetic data in pediatric patients. Limited data in neonatal patients (less than one month of age) receiving ECMO have shown that a dose of \(2 \mathrm{mg} / \mathrm{kg}\) is usually sufficient to increase gastric \(\mathrm{pH}\) to \(>4\) for at least 15 hours. Therefore, doses of \(2 \mathrm{mg} / \mathrm{kg}\) given every 12 to 24 hours or as a continuous infusion should be considered.
Problem 11
Read the dosage information or label given for the following problems. Express body weight conversion to the nearest tenth where indicated and dosages to the nearest tenth. The recommended dosage for neonates receiving ceftazidime (Tazidime) is \(30 \mathrm{mg} / \mathrm{kg}\) q \(12 \mathrm{~h}\). The neonate weighs \(3,500 \mathrm{~g}\). a. What is the neonate's weight in kilograms to the nearest tenth? b. What is the safe dosage for this neonate?
Problem 13
Read the dosage information or label given for the following problems. Express body weight conversion to the nearest tenth where indicated and dosages to the nearest tenth. The recommended dosage for Mithracin for the treatment of testicular tumors is 25 to \(30 \mathrm{mcg} / \mathrm{kg} .\) A client weighs \(190 \mathrm{lb}\). a. What is the client's weight in kilograms to the nearest tenth? b. What is the dosage range in milligrams for this client? (Round to the nearest tenth.)
Problem 27
Calculate the child's dosage in the following problems. Determine if the prescriber's order is correct. If the order is incorrect, give the correct dosage. Express answers to the nearest tenth. A child with a BSA of \(0.55 \mathrm{~m}^{2}\) has an order for \(5 \mathrm{mg}\) of a medication. The adult dosage is \(25 \mathrm{mg}\).
Problem 30
Using the formula method for calculating BSA, determine the BSA in the following clients, and express answers to the nearest hundredth. An adult who weighs \(60.9 \mathrm{~kg}\) and is \(130 \mathrm{~cm}\) tall
Problem 39
Calculate the dosages to be given. Use labels where provided. Order: Azidothymidine \(7 \mathrm{mg}\) p.o. qoh. Available: Azidothymidine \(10 \mathrm{mg}\) per mL
Problem 40
Calculate the dosages to be given. Use labels where provided. Order: Epivir \(150 \mathrm{mg}\) p.o. bi.d. Available: Epivir oral solution labeled \(10 \mathrm{mg}\) per mL
