Question

1. Order: Meropenem 500 mg IVPB now to infuse over 30 minutes via infusion pump.

Supply: Meropenem 1000 mg in 100 mL

What is the flow rate in mL/hr?

2. When you come on duty at 0800 hrs, there are 300 mL left in your patient's IV. It is infusing at 75 mL/hr. At what time do you anticipate needing a new IV bag?

3. Order: D5W 1000 mL q6h IV. What is the flow rate of the infusion pump?

4. Order: 2500 mL D5RL to run at 125 mL/hr. How long will this IV run?

5. Admission client weight is 280 lbs. What is the weight in kg? (Round to 1 decimal place)

6. Order: ibuprofen 600 mg PO every 6 hours around the clock. How many grams of ibuprofen will be administered daily?

7. Order: Normal Saline IV to infuse at 150 mL/hr via an electronic infusion pump. How many mL’s will infuse in 12 hours?

8. Order: heparin 6,000 units subcutaneous STAT. Supply: heparin 10,000 units/mL. How many mL’s of heparin should you administer?

Answer 1

Ans. 1. Supply- 1000mg in 100 ml.

So, 500mg is present in 50ml.

But has to be infused for 30 minutes.

So the flow rate to be maintained at 100ml/hr.

Ans. 2. At the rate of 75ml/hr, 300ml of IV would take 4 hours (75×4=300).

So, around 12.00hr a new IV bag should be given.

Ans. 3. 1000mEq in 6hrs.

1000mEq=1ml

So, the flow rate would be 0.17ml/hr.

Ans. 4. 2500ml D5RL at 125ml/hr.

So, 2500/125= 20 hrs.

Hence, this IV would run for 20 hours.

Ans.5. 1lb=0.454kg

So, 280lbs= 280×0.454= 127.12Kgs.

Ans.6. 600mg PO every 6 hrs

one day=24 hours

So, the drug to be delivered 4 times daily.

So, 600×4= 2400mg or 2.4 grams daily.

Ans. 7. 150ml/hr .

So, infusion for 12 hrs= 150×12=1800ml

Ans.8. 10,000 units=1ml

1unit= 1/10,000

So, 6000units= 1×6000÷10,000

= 0.6ml.

So, 0.6ml of heparin should be injected.