Nursing Math

Order: metoprolol tartrate tablet PO 50mg BID Available: metoprolol tartrate tablet 100mg How many tablet(s) should the nurse administer per dose?

0.5 tablet

The provider orders a one time dose of furosemide (Lasix) 40mg to be administered over 2 minutes. How many ml(s) will the nurse push each 15 seconds if the medication is diluted in 10ml of normal saline?

1.25 ml/15 seconds

A patient is prescribed coumadin (Warfarin) 5mg on M/W/F and 7.5mg on Su/T/R/Sa. The pharmacy dispenses 5mg scored tablets. How many tablets should the patient take on Thursday?

1.5 tabs

When answering nursing math questions, how should the student round their drops? a. to the nearest tenth b. to the nearest hundredth c. to the nearest whole number d. the student should never round

C- we cannot administer a partial drop.

1. A nurse is now preparing to administer diphenhydramine 25mg to a child who weighs 25.2kg. The drug handbook states this medication is safe between 1.5mg-2.5mg/kg/day, divided in three doses. No more than 3 doses should be given in a 24 hour period. What is this childs safe range for each dose? (round to the nearest whole number) ______-______mg Is the dose the provider ordered safe or unsafe to administer?

13mg-21mg, no this drug dose is too high.

The doctor orders a 250 mL bag of IV Normal Saline to infused at 20 gtt/min. The drip factor is 25gtt/mL. You start the IV infusion at 0900. At what time will the infusion be complete?

1410

Order: 1 L 0.9% normal saline over 6 hours. The available tubing has a drop factor of 60 gtt/mL. Calculate the appropriate gtt/min flow rate.

167 gtts/min

Calculate your clients intake for your shift in ml's: D5 1/2NS @ 40ml/hr X12 hours 1 can lemon lime soda (12 oz) 1.5 cups of chicken broth 1/2 bowl of jello (1 bowl=10oz) 0.5 L of water from their pitcher

1850mL *remember not to place a comma in your nursing math responses

1. A patient with diabetes is prescribed insulin aspart (NovoLog) and follows a sliding scale insulin protocol. The patient's current blood glucose level is 150 mg/dL. According to the sliding scale: Less than 150 mg/dL: No insulin 150-199 mg/dL: 2 units 200-249 mg/dL: 4 units 250-299 mg/dL: 6 units 300-349 mg/dL: 8 units Greater than 350 mg/dL: 10 units How much insulin aspart (NovoLog) should the nurse draw up? _____________

2 units

Order: Infuse 500mL 0.9% normal saline over 150 minutes. What rate should the nurse program the infusion pump?

200ml/hr

A nurse is calculating the urine output of a 60 pound patient.In the past 8 hours the patient has 3 voids charted: 0830 82ml 1130 40ml 1345 51ml The childs minimum urine output in 8 hours should be:___________ This child voided ____________in 8 hours. Nurses Response?

218ml expected in 8 hours calculated: 173ml output Action: their urine output has not met the minimum expected output. Encourage the child to drink more fluids. assess for other s/sx of dehydration. next step would be IVF, or if already infusing assess rate and speak with provider.

Order: Infuse 1L 0.9% normal saline over 4 hours. What rate should the nurse program the infusion pump?

250 ml/hr

Order: Infuse 400mL 0.9% normal saline over 90 minutes.What rate should the nurse program the infusion pump? Round to the nearest whole number.

267ml/hr

A client weighing 25kg should have a minimum urine output of ________ml in a 12 hour shift.

300mL 25kg= 1 ml/kg/hr Multiply by the # of hours in the shift

A pediatric client weighing 8 kg needs maintenance fluids during NPO status. The physician orders the following: IVF lactated ringers, weight based x24 hours. What is the total mL this client needs HOURLY according to fluid requirement calculations? (remember, calculate your daily need and divide by 24)______________________mL/hr *round to the nearest whole number

33ml/hr

1. A pediatric client weighing 11.8 kg needs maintenance fluids during NPO status. The physician orders the following: IVF 0.9% sodium chloride, weight based x24 hours. What is the total mL this client needs HOURLY according to fluid requirement calculations? (remember, calculate your daily need and divide by 24) ______________________mL/hr *round to the nearest whole number

45ml/hr

1. A patient with hypothyroidism takes levothyroxine (Synthroid) 80 mcg suspension through their PEG tube every morning. The available formula is 75mcg/5mL. How much should the nurse administer? _____________ (round to the nearest tenth)

5.3mL

A client weighing 5.5kg should have a minimum urine output of _______ml/hr

5.5ml/hr

An infant weighing 12.6kg is ordered PO acetaminophen 15mg/kg Q4H PRN pain or fever. If the infant received the prescribed dose 3 times during the nurses shift, how many mg of acetaminophen did the child receive?

567 mg

The pantoprazole order was determined as 26mg twice daily. The pharmacy supplies the pantoprazole as 40mg/10ml. How many mL will the nurse give to the client? _____________(round to the nearest tenth)

6.5mL

The provider orders 8 units/kg/hr Heparin infusion. The patient weighs 135 lbs. You're supplied with a 30,000 units/500mL bag. What rate should the nurse program the infusion pump?

8.2 ml/hr

Order: Infuse cefuroxime (Ceftin) 500mg in 80ml over 60 minutes. What rate should the nurse program the infusion pump?

80 ml/hr

1. A nurse is preparing to administer diphenhydramine 12.5mg to a child who weighs 35.2 pounds. The drug handbook states this medication is safe between 1.5mg-2.5mg/kg/day, divided in three doses. No more than 3 doses should be given in a 24 hour period. What is this childs safe range for each dose? (round to the nearest whole number) ______-______mg Is the dose the provider ordered safe or unsafe to administer?

8mg-13mg /dose, yes this dose is safe to administer.

Calculate your clients fluid requirement needs with the Holliday-Seegar formula below. A pediatric client who weighs 9.7kg is admitted to the hospital for dehydration. Based on daily maintenance fluid requirements, how much fluid does this client need per day? ________ml Round to the nearest whole number. Formula: 0 - 10 kg : 100mL/kg/day 10 - 20 kg: 1000 mL/day + 50 mL/kg/day for every kg > 10 > 20 kg : 1500 mL/d ay + 20 mL/kg/day for every KG > 20

970mL/day

Calculate your clients fluid requirement needs with the Holliday-Seegar formula below. A pediatric client who weighs 16.7kg is admitted to the hospital for dehydration. Based on daily maintenance fluid requirements, how much fluid does this client need per day? ________ml Round to the nearest whole number. Formula: 0 - 10 kg : 100mL/kg/day 10 - 20 kg: 1000 mL/day + 50 mL/kg/day for every kg > 10 > 20 kg : 1500 mL/d ay + 20 mL/kg/day for every KG > 20

1335mL/day

A nurse is preparing to administer cephalexin 5mg/kg/day to a toddler who weighs 25.8 lb. Available is cephalexin 125mg/5 mL suspension. How many mL should the nurse administer? (Round answer to the nearest tenth, i.e., 1.2 or 0.1) ______________________mL

11.4mL

1. A nurse is preparing to administer levetiracetam 125mg, given twice daily, to a child who weighs 33 lb. The drug handbook states this medication is safe between 8mg-10mg/kg/dose. What is this childs safe range? ______-______mg Is the dose the provider ordered safe or unsafe to administer?

120-150mg, yes this dose is safe

An infant who weighs 4.6kg has an order for digoxin solution, 20 mcg PO BID. The drug reference states that a safe dosage range is 6-10 mcg/kg/ dose oral daily in 2 divided doses. Digoxin solution contains 0.05 mg/ 1 mL. What is the minimum recommended dosage range for this child per dose?

13.8 mcg

286 lbs = _________kg

130

A nurse is calculating the urine output of a 26 pound patient. In the past 8 hours the patient has 3 voids charted: 0930 32ml 1130 22ml 1315 44ml What action should the nurse take next?

Nothing, the expected urine output for this child is 11.8ml/hr. In 8 hours we would expect a minimum urine output of 95ml. This child has 98 ml, indicating a minimum urine output was met.

The nurse is caring for a client at risk of developing gastric ulcers, weighing 55kg. If pantoprazole (Protonix) were to be dosed at 1mg/kg/day in two divided doses for ulcer prevention, how many mg will the client receive per dose?

Step 1- check the weight- it's already in kg! multiply your 56kg weight by 1mg = 56mg/day, but it says in two divided doses- so each dose will be 26mg