Math
Drop Rate
1. Order: 750 mL of D5W over 3 hours
Drop factor: 20gtt/mL
Calculate the drip rate:
Round your answer to the nearest whole number.
Answer: 83gtt/min
2. Order: Ancef 1 gram in 100ml. Infuse over 45 minutes
Drop factor: 20gtt/ml
Calculate drip rate:
Round your answer to the whole number.
Answer: 44 gtt/min
Mcg/kg/min
1. You need to start a Dobutamine infusion. The floor stock of Dobutamine is 500mg in 250mL of D5W. What would the infusion rate (pump rate) be if the order is for 5.5mcg/kg/min and the patient weighs 121 pounds?
Answer: 9.075 ml/hr
2. You have the order to start a Nipride infusion for hypertension. The infusion needs to begin at 2.5mg/kg/min using the supply of 500mg of Nipride in 250cc of D5W. You note the patient’s admission weight is 225pounds. What would you program the pump to infuse at?
Typo: suppose to be 500mg in 250 cc
Answer: 127.84ml/hr
BSA
1. Order: Zovirax (acyclovir) 250mg/m² IV q8h
Supply: Zovirax 50mg/mL
BSA: 0.50m²
Determine the amount (in mL) to be given for the dose ordered.
Answer: 2.5 ml
2. Order: Methotrexate 3.3mg/m² po daily
Supply: Methotrexate 5mg/2mL
BSA: 1.25m²
Literature: Max dose: 15mg per week
Is the dose ordered safe?
Answer: Total dose for the week is 28.875 , no the dose is not safe!
Pump rate
- What will the setting be on the pump be if the infusion amount ordered of Drug Z (40 mL) needs to be completed over 25 mins?
Answer: 96 ml/hr
2. What will the setting be on the pump be if the infusion amount orders of Amiodorone (50mL) needs to be completed over 10 minutes?
Answer: 300ml/hr
Kg/mg
1. Order: Tylenol 10mg/kg oral q 4 hour prn
Supply: 165mg/5mL
Weight: 45 kg
Determine the amount (in mL) to be given for the dose ordered
Answer: 13.63 ml
2. Order: Augmentin 150 mg po q8h prn
Supply: 125mg/5mL
Weight: 22lb
Literature: Recommended dose range 30-50mg/kg/day in divided doses. What is the recommended dose range for this patient?
Answer: 300 mg to 500mg per day
Teaspoon
The physician instructed Bob to take 2 tablespoons syrup every 12 hrs. Bob only has teaspoons available to measure with. How many teaspoons should he take per dose?
Answer: 6 teaspoon
Minimal Dilution
Order: Fortaz 1.25gram IVPB q8h in 30cc of D5½NS. Infuse over 30 minutes: Supply: 2grams/10cc: Child weight: 15 kg
Literature: Safe dose is 2 to 6 g/24hours given q8 to12 hours. Literature also states that the Minimal concentration for IV infusion is 45mg/mL.
1.What is the minimal safe dilution for the above ordered dose? (what is the minimal amount of dilutant for the 1.25grams of Fortaz ordered) (Round your answer to a whole number)
Answer: 28ml
Order: Methicillin sodium 830 mg in 30mL of normal saline, IV q6h, infuse over 1 hour
Supply: Methicillin 1gram/10mL
Child weight: 42lb
Literature: Maximum dose is 200mg/kg/day in 4 equally divided doses. It also states that the minimal concentration for IV infusion is 40mg/mL
a) What is the minimal safe dilution (minimal amount of fluid to dilute the 830mg) for the dosage ordered?
Answer: 20.75 ml
Safe Dose
1. Order: Fortaz 1.25gram IVPB q8h in 30cc of D5½NS. Infuse over 30 minutes: Supply: 2grams/10cc: Child weight: 15 kg
Literature: Safe dose is 2 to 6 g/24hours given q8 to12 hours. Literature also states that the Minimal concentration for IV infusion is 45mg/mL.
Is this dose safe?
Answer: Yes (total dose for the above order is 3.75mg per day
2. Order: Keflex 125 mg p.o. q6h
Supply: Keflex 250mg/5mL
Child weight: 44lb
Literature: Children usual maximum dose: 25mg/kg/day
a) Determine if the order is a safe dose
Answer: Yes
Mg/mL
1. Order: Solumedrol 80 mg IV bid
Supply: Solumedrol 125mg/2mL
How many mL would you need to draw up per dose be?
Answer: 0.64ml
2. Methicillin sodium 1.5 gram, IM was prescribed for a systemic infection. 5 grams of the medication is available as a powder in a vial. Directions stated to reconstitute it with 4.9 mL of sterile water for injection and shake well. After the reconstitution the solution concentration of the vial will provide 450mg/mL. How much (mL’s) should the nurse draw up in order to give the prescribed dose?
Answer: 3.33ml
Grain
1. Label: Codeine gr ¼ per tablet
Order: Codeine 30mg p.o. q4 hours prn
How many tablet(s) would you give?
Answer: 2 tablets
2. 650 mg of Tylenol = answer grX
%
1
Order: Lidocaine 50 mg injection stat
Label: 2% Lidocaine multiple dose vial
Draw a line at the correct amount on the syringe below
Answer 2.5 ml
Order: Magnesium Sulfate 2grams: add 1000cc of normal saline infuse over 10 hours. How much Magnesium Sulfate would you need to draw up to mix with the normal saline?
Label: Magnesium Sulfate 50% vial
Draw a line at the correct amount on the syringe below
Answer: 4 ml