Video Library
Dosage calculation ati rn martenal newborn proctored assessment 3.1
Total Questions : 30
Showing 10 questions, Sign in for moreA nurse is caring for a newborn who weighs 3,500 g. The nurse should record the newborn's weight as how many kg? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To convert the weight of the newborn from grams to kilograms, one needs to divide the number of grams by 1,000 since there are 1,000 grams in a kilogram. Therefore, a newborn who weighs 3,500 grams would be recorded as weighing 3.5 kilograms.
A nurse is preparing to administer dextrose 5% in 0.9% sodium chloride 250 mL IV to infuse over 4 hr to a pregnant client who has a blood glucose level of 65 mg/dL. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.).
Explanation
To calculate the infusion rate for the IV pump, the total volume of the IV fluid (250 mL) should be divided by the time over which the infusion is to take place (4 hours). This calculation results in an infusion rate of 62.5 mL/hr. Since the infusion pump cannot be set to a decimal, the rate is rounded to the nearest whole number, which is 63 mL/hr.
A nurse is preparing to administer acetaminophen 0.65 g PO to a client for a report of postpartum pain. Available is acetaminophen 325 mg tablets. How many tablets should the nurse plan to administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To convert grams to milligrams, the value in grams is multiplied by 1,000. Therefore, 0.65 grams of acetaminophen is equivalent to 650 milligrams. If one tablet contains 325 milligrams, the number of tablets needed would be 650 mg divided by 325 mg per tablet, which equals 2.
A nurse is reviewing a new prescription with the parent of a newborn who is to receive ferrous sulfate 15 mg PO daily. Available is ferrous sulfate drops 75 mg/0.6 mL. How many mL should the parent administer to the newborn each day? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To determine the correct dosage of ferrous sulfate drops for the newborn, one must use the formula: (Desired Dose / Concentration) = Volume to Administer. In this case, the desired dose is 15 mg, and the concentration available is 75 mg per 0.6 mL. Therefore, the calculation would be (15 mg / 75 mg) * 0.6 mL, which equals 0.12 mL.
A nurse is preparing to administer procaine penicillin G 1,200,000 units IM to a client who has a gonococcal infection. Available is procaine penicillin G injection 600,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the correct dosage, the nurse needs to divide the total units prescribed by the concentration of units per milliliter available. In this case, 1,200,000 units prescribed divided by 600,000 units per mL results in 2 mL.
A nurse in a prenatal clinic is caring for a client who has a new prescription for nystatin cream 100,000 units/g to the affected area. The nurse should recognize that which of the following elements of the prescription requires clarification by the provider?
A nurse is preparing to administer docusate sodium PO to a postpartum client who has a prescription for 200 mg/day in two equally divided doses. The client states she has trouble swallowing tablets and capsules. Therefore, the nurse has obtained docusate sodium liquid 50 mg/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To administer the correct dose of docusate sodium liquid, which is 50 mg per 5 mL, for a total daily prescription of 200 mg, the nurse would need to give two equally divided doses. This means each dose should be 100 mg. To calculate the amount in milliliters for each dose, the nurse would use the following ratio: 50 mg is to 5 mL as 100 mg is to X mL. Solving for X, the calculation is (100 mg * 5 mL) / 50 mg, which equals 10 mL.
A nurse is preparing to administer ketorolac 15 mg IM every 6 hr PRN for pain to a client who is postoperative following a cesarean birth and reports pain. Available is ketorolac injection 30 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To administer the correct dose of ketorolac, which is 15 mg, and given that the available ketorolac injection concentration is 30 mg/mL, the nurse should use the following calculation: Divide the ordered dose (15 mg) by the concentration of the available medication (30 mg/mL). This results in 0.5 mL.
A nurse is preparing to administer lactated Ringer's 500 mL IV to infuse over 4 hr for a pregnant client who is dehydrated. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the infusion rate, the total volume of lactated Ringer's solution (500 mL) should be divided by the total time of infusion (4 hours). This results in an infusion rate of 125 mL/hr.
A nurse is reviewing a new prescription for propranolol 200 mg PO daily divided in equal doses every 12 hr for a client who has migraine headaches during the premenstrual period. Available is propranolol solution 4 mg/mL. How many mL should the client self-administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
To calculate the volume of propranolol solution the client should self-administer per dose, you would divide the total daily dose by the concentration of the solution. The prescription is for 200 mg daily, to be taken in equal doses every 12 hours, which means each dose should be 100 mg. With the solution concentration at 4 mg/mL, you would divide 100 mg by 4 mg/mL to find the volume needed for one dose. This calculation results in 25 mL per dose.
Sign Up or Login to view all the 30 Questions on this Exam
Join over 100,000+ nursing students using Naxlex’s science-backend flashcards, practice tests and expert solutions to improve their grades and reach their goals.
Sign Up Now
