Math review

A newborn is prescribed gentamicin for suspected neonatal sepsis. The newborn weighs 1600 grams, and the drug is to be given at 2.5 mg/kg every 12 hours. What is the correct dosage to be administered every 12 hours? Record your answer using a whole number.

4

The nurse is preparing to administer medication to a child who weighs 25 pounds. The label reads the safe dosage range to be 5 to 10 mg/kg/day. What is the safe low dose per day for this child? (Round your answer to one decimal place.)

56.8

A woman is to receive penicillin G 3,000,000 units IM q6h as syphilis treatment. The medication is available as 1,500,000 units/ml. How many milliliters will be administered in 24 hours? Record your answer using a whole number.

8 mL

A 10-month-old child with acute otitis media is prescribed amoxicillin suspension 80 mg/kg/day to be administered in two divided doses. The child weighs 8480 g (18 lb 11 oz). The amoxicillin suspension is available as 250 mg/5 ml. What volume of amoxicillin suspension should the parents be instructed to administer for each dose? Provide the answer in milliliters, rounded to the nearest whole number.

329 Amoxicillin suspension for acute otitis media is usually prescribed as high-dose amoxicillin in two daily divided doses, based on 80 to 90 mg/kg/24 hours Weight in kg = weight in g ÷ 1000; 8480 = 8.480 kg Desired daily dose = Prescribed amount (mg/kg) x weight (kg) = 80 mg/kg x 8.480 kg = 678.4 mg/day Desired dose = Daily dose ÷ 2 doses per day; 678.4 mg/day ÷ 2 doses/day = 339.2 mg/dose Dose to administer = Desired (mg) x Quantity (ml) ÷ Available (mg) = 339.2 mg x 5 ml ÷ 250 mg = 7 ml per dose

During a neonate resuscitation attempt, the neonatologist has ordered 0.1 ml/kg IV epinephrine (adrenaline) in a 1:10,000 concentration to be given stat. The neonate weighs 3000 grams and is 38 centimeters long. How many milliliters (ml) should the nurse administer? Record your answer using one decimal place.

300 Epinephrine should be given if heart rate is 60 after 30 seconds of compressions and ventilation.epinephrine: 1:10,000 concentration0.1 to 0.3 mL/kg IV3000 grams = 3 kg3 kg x 0.1 mL/kg = 0.3 mL

The child's ability to perfuse is poor due to inadequate circulation. The physician writes an order for the child to receive 20 ml of normal saline for each kilogram of body weight. The child will receive the normal saline as a bolus through a central intravenous line. The child weighs 78 lb (35.46 kg). Calculate the amount of normal saline the nurse should administer as a bolus. Record your answer using a whole number.

709

The young child has been diagnosed with group A streptococcal pharyngitis. The physician orders amoxicillin 45 mg/kg in three equally divided doses. The child weighs 23 lb (10.45 kg). Calculate how many milligrams the child will receive with each dose of amoxicillin. Record your answer using a whole number.

1035 Dose should be calculated using weight kilograms. 10.45 kg x 45 g/kg = 470.45 mg 470.45 mg/3 = 156.82 mg Rounded to 157 mg per dose

A health care provider has prescribed cephalexin 30 mg/kg PO daily in 4 divided doses for a child diagnosed with impetigo. The child weighs 30 lb (14 kg). How many milligrams should the child receive each day?

105 420 Explanation: The nurse will use the client's weight in kilograms and multiply it by the prescribed dosage. 14 kg × 30 mg/kg = 420 mg

A child who weighs 61 lb (27.7 kg) has prescription for dexamethasone, 1 mg IV every 6 hours. The drug reference states that the safe dose range is 0.02 to 0.3 mg/kg/day every 6 hours. Dexamethasone is supplied as 4 mg/ml. What is the minimum recommended safe dosage range for this child per dose? Record your answer using two decimal places.

0.55 Using the child's weight in kilograms, calculate the low safe dose range by setting up a proportion using the low safe dose range0.02 mg/1 kg = X mg/27.7 kgSolve for X by cross-multiplying:1 × x = 0.02 × 27.7x = 0.55 mg/day Then divide by 4 because the medication is given every 6 hours to determine the minimum recommended safe dosage range for this child per dose. 0.55/4 = 0.1375, rounding to the nearest hundredth, 0.14 mg per dose is the low safe dose

The infant has been hospitalized and develops hypercyanosis. The physician has ordered the nurse to administer 0.1 mg of morphine sulfate per every kilogram of the infant's body weight. The infant weighs 15.2 lb (6.9 kg). Calculate the infant's morphine sulfate dose. Record your answer using one decimal place.

0.7

The pediatrician prescribes morphine sulphate 0.2 mg/kg orally q 4 hour for a neonate suffering from drug withdrawal. The neonate weighs 3,800 grams. How much of drug will the nurse give in 24 hours? Record your answer using two decimal places.

1.2 3800 grams = 3.8 kg3.8 kg/kg x 0.20 mg x 6 doses = 4.56 mg in 24 hours

The child has been diagnosed with severe iron deficiency anemia. The child requires 5 mg/kg of elemental iron per day in three equally divided doses. The child weighs 47.3 lb (21.5 kg). How many milligrams of elemental iron should the child receive with each dose? Record your answer using a whole number.

108 The dose should be calculated using weight in kilograms. 21.5 kg x 5 mg/1 kg = 107.5 mg/day. 107.5 mg/3 doses = 35.8333 mg/dose rounded to the nearest whole number = 36 mg

A nurse is providing care to a child diagnosed with cerebral palsy who is experiencing painful muscle spasms. The health care provider has prescribed baclofen 40 mg/day PO in three divided doses. How many milligrams should the nurse administer in each dose? Record your answer using one decimal place.

13.3

The nurse is caring for a child who weighs 47 lb (21.3 kg). The medication prescribed for the child has a therapeutic dosage of 3 mg/kg/day. The medication prescribed is to be given every 6 hours. Calculate the total number of milligrams per dose of medication the child will receive? Record your answer using a whole number.

16

A nurse is providing care for a child diagnosed with beta-thalassemia. The child requires a blood transfusion of packed red blood cells (PRBCs). The health care provider has prescribed a transfusion volume of 10 ml/kg. The child weighs 37 lb (16.8 kg). How many milliliters should the nurse infuse?

168

The nurse is caring for a child prescribed vancomycin 15 mg/kg IV every 6 hours for peritonitis. The child weights 45 lb (20.5 kg). How many milligrams will the nurse administer to this child in 24 hours?

307.5 The nurse will administer 1230 milligrams to this child is 24 hours. To calculate, first determine how many milligrams are given per dose by multiplying the child's weight (kg) by 15 mg. 15 mg x 20.5 kg = 307.5 mg per dose. The child is prescribed a dose every 6 hours. To determine how many doses the child will get in 24 hours, divide 24 by 6. 24/6 = 4. Now, multiply the number of doses given a day by the milligrams given in each dose to determine the total milligrams given in 24 hours. 4 x 307.5 mg = 1230 mg in 24 hours.

A newborn weighing 5 lb (2250 g) needs to eat 3 oz (90 ml) of formula every 3 hours. To meet this goal, how many ounces of formula per day will the parent need to feed the newborn? Record your answer using a whole number.

24

The child's physician requests that the nurse should notify her if the child's urine output is less than 1 ml/kg of body weight each hour. The child weighs 56 lb (25.46 kg). Calculate the minimum amount of urine output the child should produce each hour. Record your answer using a whole number.

24 Urine output should be calculated using weight in kilograms. 25.46 kg x 1 ml/kg = 25.46 ml/hour. The child must produce 25 ml/hour

A health care provider has prescribed hydroxyurea 20 mg/kg to a child as part of a treatment regimen for sickle cell disease. The child weighs 27 lb (12.2 kg). How many milligrams should the nurse administer?

244

The child has been hospitalized for failure to thrive. The child weighs 23.2 kg. The child is to receive 120 kilocalories per kilogram of weight per day. How many kilocalories should the child eat each day? Record your answer using a whole number.

2784

A nurse is caring for a child who requires intravenous maintenance fluid. The child weighs 30 kg. Calculate the child's daily maintenance fluid requirement in milliliters. Record your answer using a whole number.

1700

The nurse is administering biosynthetic growth hormone, derived from recombinant DNA, by subcutaneous injection. The daily dosage is 0.2 to 0.3 mg/kg, given in divided doses. The child weighs 110 lb (49.9 kg). What is the safe dosage limit for this child on a daily basis? Record your answer using a whole number.

22 Use the child's weight in kilograms: 49.9 Minimum: 49.9 kg × 0.2 mg/kg = 9.98 mg, round to 10 mgMaximum: 49.9 kg × 0.3 mg/kg = 14.97 mg, round to 15 mg The safe limit is determined by using the maximum dosage. The lack of growth hormone impairs the body's ability to metabolize protein, fat, and carbohydrates. Treatment of primary growth hormone deficiency involves the use of supplemental growth hormone. Treatment continues until near-final height goal is achieved.

The nurse is caring for a 9-month-old infant in the emergency department following a traumatic injury. The infant weighs 21.5 pounds. In order to provide adequate fluid resuscitation, the nurse plans to infuse 20 ml/kg of lactated Ringer's as an IV fluid bolus. How many ml will the nurse administer? (Round your answer to the nearest whole number.) _________

195

A client is to receive 3 million units of penicillin G intramuscular to treat gonorrhea. The drug is available in 1,500,000 units/mL. How many milliliters should the nurse administer? Record your answer using a whole number.

2

A 7-year-old child has a prescription for 10 mg/kg PO acetaminophen. The child weighs 55 lb (25 kg). The acetaminophen is supplied as 80 mg tablets. How many tablets should the nurse administer? Record your answer using a whole number.

250 Desired dose = Prescribed amount (mg/kg) x weight (kg) = 10 mg/kg x 25 kg = 250 mg Dose available = 80 mg Dose to administer = Desired (mg) x Quantity (tabs) = 250mg x 1 tab = 3.125 tabs rounded to 3 Available (mg) 80mg

A child is hospitalized with suspected sepsis. The health care provider has prescribed an intravenous fluid bolus of lactated Ringer's solution 15 ml/kg to infuse over 20 minutes. The child weighs 52 lb (23.6 kg). How much fluid should the nurse administer? Record your answer using a whole number.

354

The child has been diagnosed with severe dehydration. The health care provider has prescribed a bolus of 20 ml/kg of normal saline over a 2-hour period. The child weighs 63.5 lb (28.8 kg). At which ml/hour should the nurse set the child's intravenous administration pump? Record your answer using a whole number.

576 Using the child's weight in kilograms, multiply by prescribed dose. 28.8 kg x 20 ml/kg = 576 ml. Divide by time administered. 576 ml ÷ 2 hr = 288 ml/hr

The physician has ordered ibuprofen 150 mg every 6 hours as needed for a 3-year-old child for a fever greater than 38°C (100.4°F). The label of the ibuprofen bottle reads "ibuprofen oral suspension 100 mg/5 ml." How much ibuprofen liquid will the nurse administer if the child's temperature goes above 38°C (100.4°F)? Record your answer using one decimal place.

7.5

The nurse is calculating the urinary output for the infant. The infant's diaper weighed 40 g prior to placing the diaper on the infant. After removal of the wet diaper, the diaper weighed 75 g. How many milliliters of urine can the nurse document as urinary output? Record your answer using a whole number.

35