Nursing 150 dosage calculation test 3

Ordered: heparin infusion 1000 units per hour Available: heparin 20,000 units in 1000 mL 0.9 NaCl solution How many mL/hr will the nurse run the infusion?

1000ml/20000units x 1000units/hr= 50

Ordered: Lanoxin pediatric elixir 200 mcg PO three times a day loading dose, for a child with heart failure. SDR for child over 2 years of age: loading dose 0.02-0.04 mg per kg per 24 hr in 3 divided doses; maintenance dose 0.006-0.012 mg per kg per 24 hr in 2 divided doses Child's weight: 12 kg Is the ordered loading dose within recommended range?

12kg x 200 mcg = 2400 converted to mg is 2.4 mg,,,, no

The drug label states that the ususal dosage is 25 mg/kg given every 4-6 hours. The client weighs 84.2 kg. How many mg will the client recieve per dose?

25 x 84.2 = 2105

A 400 mg in 250 mL solution is ordered for a 89.7 kg patient to titrate between 4 and 10 mcg/kg/min. What is the maximum infusion rate (ml/hr)? (Round answer to the nearest whole number.)

250ml/400mg x 1mg/1000mg x 10mcg/1hr x 60min/1hr x 89.7kg = 33.63 = 34

Ordered: Hydrocortisone, IV push, 25 mg bolus dose, for an adolescent with adrenal insufficiency. Patient weight is 45 kg. SDR: 1-2 mg per kg the label reads; 2 ml actovial solu-cortef 250mg

25mg divided by 250mg x 2ml = 0.2

A child weighing 35 kg is to recieve Tegretol elixir 30 mg BID. How many mL will be administered per dose? pic of bottle- label reads 100mg/5ml

30mg divided by 100mg x 5ml = 1.5

The drug label states the recommended dose is 50-75 mcg/kg/day given in 2 divided doses. The client's weight is 43.8 kg. Is an order for 1300 mcg every 12 hours within the recommended dosage range?

43.8kg x 50 = 2190 divided by 2=1095 43.8 x 75 = 3285 divided by 2 = 1642.5 yes it is in the dosage range

Ordered: Drug X 125 mg 4 times daily SDR for children: 20-30 mg per kg per day in 4 divided doses Child's weight: 50 lb. What is the maximum recommended amount (mg) for this child per dose? (Round answer to the nearest whole number.)

50 divided by 2.2 = 22.727 22.727 x 30 = 681.81 = 682 divided by 4 = 170.2 = 170

The drug label states the recommended dose is 50-75 mcg/kg/day given in 2 divided doses. The client's weight is 50 kg. What is the lower single dose amount (mcg)? (Round answer to the nearest whole number.)

50 is the lowest. remember it is divided into 2 doses. 50mcg x 50kg = 2500 divided by 2 = 1250

Ordered: heparin infusion 750 units per hour Available: heparin 25,000 units in 500 mL How many mL/hr will the nurse run the infusion? (Round answer to the nearest whole number.)

500ml/25000units x 750units/1hr = 15

The drug label states the recommended dose is 60-75 mcg/kg/day given in 3 divided doses. The client's weight is 70 kg. What is the lower single dose amount (mcg)? (Round answer to the nearest whole number.)

60is the smallest so multiply it by 70. it is then divided into 3 doses. 60 x 70 = 4200 divided by three = 1400

Ordered: An anticholinergic, Scopolamine 300 mcg IV stat for a child with nausea and vomiting SDR: 6 mcg per kg per dose up to a maximum of 0.3 mg per dose. May repeat every 6-8 hr. The child's weight is 40 kg. Dilute with an equal volume of sterile water for injection (SWI) and administer by direct IV injection over 2 minutes. Is the order within the recommended dose guidelines?

6mcg x 40kg = 240 The recommended dose is 240 mcg up to a maximum of 300 mcg per dose. So, yes the order is within range.

A child weighing 25 kg is to receive 7.5-9 mg/kg/dose. Each dose is to infuse over 60 minutes. The supply is labeled 25 mg/mL. What is the recommended "minimum" dose (mg)? (Round answer to the nearest whole number.)

7.5mg x 25kg = 187.5 = 188

The drug label states that the ususal dosage is 50-75 mcg/kg/day given in 2 divided doses. The client's weight is 43.8 kg. What is the higher single dose amount (mcg) that can be administered? (Round answer to the nearest whole number.)

75mcg x 43.8kg = 3285 divided by 2 = 1642.5= 1643

A child weighing 19.3 kg is to receive 7.5-9 mg/kg/dose. Each dose is to infuse over 50 minutes. The supply is labeled 10 mg/mL. What is the recommended "maximum" dose (mg)? (Round answer to the nearest whole number.)

9mg x 19.3kg = 173.7 = 174

The nurse assesses that the patient is receiving a heparin infusion at 30 mL/hr. Use the heparin bag label to determine how many units/hr of heparin the patient is receiving? _____ units/hr (Round answer to the nearest whole number.) the label reads; 500ml heparin 1000 units

always divide the ordered dose by the on hand quantity that matches it,,, ml to ml,,,,mg to mg 30ml divided by 500ml x 1000 units = 60

The drug label indicates that the recommended dosage for adults and children over 6 years of age is 250 mg/kg 3 times daily. For infants, the recommended dosage is 140-170 mg/kg 3 times daily. What is the maximum recommended 24 hour amount (mg) for a child weighing 80 lb? ________ mg (Round answer to the nearest whole number.)

be careful,,, one set of # is for kids and the other is for infants convert lbs to kg 80 divided by 2.2= 36.363 36.363 x 250 = 9090.75 = 9091 9091 x 3 = 27273

The drug label indicates that the recommended dosage for adults and children over 6 years of age is 250 mg/kg 3 times daily. For infants, the recommended dosage is 140-170 mg/kg 3 times daily. What is the maximum recommended 24 hour amount (mg) for a child weighing 62 lb? ________ mg (Round answer to the nearest whole number.)

be careful,,, one set of # is for kids and the other is for infants convert lbs into kg 62 divided by 2.2 = 28.181x 250= 7045.25= 7045 7045 x 3 = 21135

The drug label reads 300-450 mcg/kg/day in 2 divided doses. What would be the lower 24 hour amount (mg) for a 215 lb man? (Round answer to the nearest whole number.) I

convert lbs to kg 215 divided by 2.2 = 97.727 = 98 98 x 300 =29.400 = 29

An infant weighing 7 lbs is to receive 10-15 units/kg/dose. Each dose is to infuse over 45 minutes. The available supply is labeled 12 units/10 mL. How many units will be administered for a minimum dose? (Round answer to the nearest whole number.)

convert lbs to kg 7lbs divided by 2.2 = 3.181 3.181 x 10 = 31.8 = 32

Calculate the 24 hour fluid requirement (mL/day) for a child weighing 15 lb to receive 75 mL/kg/day. (Round answer to the nearest whole number.)

convert lbs to kg 15 divided by 2.2 = 6.818 6.818 x 75 =511.35 = 511

A patient is receiving an infusion at 75 mL/hr. How many mg/min is the patient receiving if the solution strength is 1 g in 500 mL and the patient weighs 73 kg? ( Round answer to nearest tenth.)

forget about the weight, it doesn't mater in this convert g to mg 1000mg/500ml x 75ml/1hr x 60min/1hr = 2.5

A solution of 500 mg in 1000 mL is infusing at 5 mL/hr. The order reads titrate infusion between 0.4 and 0.8 mcg/kg/min. Is the current infusion within ordered limits if the patient weighs 61.4 kg?

mcg/kg/min 1000mcg/1mg x 500mg/1000mg x 5ml/1hr x 1/hr x 1/61.4kg = 0.678

An infusion is running at 18 mL/hr. The solution strength is 150 mg in 500 mL. How many mcg/min are infusing? (Round answer to the nearest whole number.)

mcg/min 1000mcg/1mg x 150mg/500ml x 18ml/1hr x1hr/60 min = 2700000/30000 = 90

An infusion is running at 75 mL/hr. The solution strength is 600 mg in 250 mL. How many mg/min are infusing? (Round answer to the nearest whole number.)

mg/ min 600mg/250ml x 75ml/1hr x1hr/60min = 3

A solution of 4 g in 250 mL is ordered to infuse at 60 mcg/kg/min for a patient weighing 82.7 kg. How many mL/hr will the nurse administer the infusion? ______ mL/hr (Round answer to the nearest whole number.)

ml/hr 250ml/4000mg x 1mg/1000mcg x 60mcg/kg-min x 60min/1hr x 82.7kg= 18.6 = 19

A 10 mcg/kg/min dosage is ordered for an adult weighing 61 kg. The solution available is 500 mg in 250 mL. How many mL/hr will the nurse administer the infusion? _______ mL/hr (Round answer to the nearest whole number.)

ml/hr 250ml/500mg x 1mg/1000mcg x 10mcg/1min x 60/1hr x 61 = 18.3 = 18

Ordered: heparin infusion 1000 units per hour, for a patient with thrombophlebitis Available: heparin 25,000 units in 500 mL NS Currently infusing: heparin solution at 40 mL per hour Does the current infusion rate match the physicians order?

remember divide the units with like amounts of the on hand drug,,, unit to unit,, mg to mg,, ml to ml. In this one its asking to see if the existing infusion matches a new order. 40ml divivded by 500ml x 25000 = 2000 so no is the answer

The drug label states that the recommended dose is 10-15 mg/lb every 6-8 hours for 48 hours. The prescriber has ordered 1200 mg four times per day for 48 hours. Is this order within recommended guidelines if the patient weighs 65 kg?

this one is tricky, the recomended dose is in mg/lbs,,, pounds,,, so the weight will need to be converted to lbs. 65 x 2.2 = 143 143 x 10 - 1430 143 x 15 = 2145 1,430 mg per dose given every 8 hours (3 doses/day) = 4,290 mg/day 2,145 mg per dose given every 6 hours (4 doses/day) = 8,580 mg/day Calculate the order: 1,200 mg per dose given 4 times a day = 4,800 mg/day yes 4800 is in the range

The nurse assesses that the patient is receiving a heparin infusion at 22 mL/hr. If the heparin solution strength is 25,000 units heparin in 500 mL D5W, how many units/hr of heparin is the patient receiving? _____ units/hr (Round answer to the nearest whole number.)

units/hrs 25000units/500ml x 22ml/1hr = 1100

An Heparin IV bag of 25,000 units in 500 mL NS is infusing at 40 ml/hr. How many units/hr are infusing?

units/hrs 25000units/500ml x 40ml/1hr =2000