Question

1. Mr. S. is admitted to the hospital with MRSA abscess of the left foot. His physician orders Vancomycin IV.   Order: Vancomycin 125 mg in 500 ml D5W to infuse over 2 hours via infusion pump. What is the flow rate in ml/hr?

2. Mrs. N. suffered a 3^rd degree burn to her right hand and was admitted to the hospital for wound debridement and IV antibiotic therapy. Order: Gentamycin 40 mg IV every 8 hours. Supply: Gentamycin 80 mg per 2 ml. How many ml will you give?

3. Mrs. B. is admitted to the hospital from a Skilled Nursing Facility with failure to thrive and dehydration. Her physician orders Lactated Ringers 1000 ml with multi-vitamin added to infuse over the next 6 hours via infusion pump. What is the flow rate in ml/hr?

4. Mrs. Y. is admitted to the Critical Care Unit with an acute myocardial infarction. Her physician orders a Lidocaine drip via infusion pump. Order: Lidocaine 2 g in 500 ml D5W IV to infuse at 6 mg/min. What is the infusion rate in ml/min?

5. Mr. S. is status post appendectomy and is admitted for observation secondary to nausea and vomiting post-operatively. His physician orders NS 1000 ml IV for 12 hours. Drop factor: 20gtt/ml. What is the flow rate in gtt/min?

6. Mr. A. is admitted to the medical unit with magnesium deficiency. His physician orders a magnesium infusion. Order: Magnesium sulfate 4 g in 500 ml D5W at 500 mg/hr via infusion pump. What is the flow rate in ml/hr?

7. Mr. M. is admitted to the hospital with a GI bleed and his physician orders a blood transfusion of packed red blood cells (PRBCs). Order: 1 unit PRBCs; 520 ml IV to infuse over 4 hours. Drop factor: 20 gtt/ml. What is the infusion rate in gtt/min?

8. Mr. H. is admitted to the orthopedic floor after a hip replacement. His physician orders IV fluids to infuse at 150 ml/hr for the next 24 hours. Per this order, how many liters of fluid will infuse?

9. Mr. O. is admitted to the ICU with cardiac decompensation. His physician orders a Dobutamine drip via infusion pump. Order: Dobutamine 250 mg IV in 500 ml D5W to infuse at 5 mcg/kg/min. Mr. O. weighs 80 kg. What is the flow rate in ml/hr?

10. Mr. G. is admitted to the hospital with acute pancreatitis and rates his abdominal pain 8/10. His physician orders Hydromorphone PRN for pain management. Order: Hydromorphone 1 mg IV every 4 hours PRN pain. Supply: Hydromorphone 5 mg/ml. How many ml of medication will Mr. G. receive with each dose?

Answer 1

●Given

Order:Vancomycin

Dose:125mg

Volume:500ml

Time:2hours

Flow rate=Total volume (ml)÷Time (hr)

=500÷2

=250

Ans:250ml/hr

●Given

Order:Gentamicin

Dose:40mg

Frequency:8 hourly (three time a day)

Available:80mg/2ml

When 80mg=2ml

The 40mg=??ml

Cross multiply and divide

=40×2÷80

=80÷80

=1

Ans:1ml to be given

●Given

Order:RL with multivitamin

Volume:1000ml

Time:6 hours

Flow rate=Total volume (ml)÷Time (hr)

=1000÷6

=166.6 or 167

Ans:167 ml has to be administered

●Given

Order:Lidocaine

Dose:2gm

Volume:500mlD5W

Drop factor:15 (standard rate)

Infusion rate:6mg/min

If in 1 min 6mg will be transfused

Then

In 60 minutes =??mg

Cross multiply and divide

=60×6÷1

=360÷1

=360mg/hour

Then 2gram(2000mg) will be transfused in

=2000×1÷360

=2000÷360

=5.5 hour(330min =5.5×60)

Flow rate:Total volume (ml)÷Time(min)×drop factor

=500÷330×15

=1.51×15

=22.7 or 23

Ans:23ml/min