Question

46. The provider ordered heparin 4000 units subcutaneous, every 12 hours. The pharmacy supplies heparin in a 1-mL vial containing 5000 units per mL. What should the nurse administer per dose? 0.8 ML 4000 units x 1 mL = 6.8 mL 5,000 units X 1 ml = 6.8 mL 47. IS X 93,8kg Calculate the mL per hr for this weight-based infusion. A provider orders a continuous heparin infusion to begin at 15 units per kg per hr. The patient weighs 93.8 kg. The pharmacy supplies heparin in a premixed bag of 40,000 units in 500 mL DSW. 17.6 ml per hc (round to the tenths) 40,000 units : 500 ml : 1487 units : x ml 703,500 - 19.6 ml per hr 40,000 Calculate the weight-based infusion rate: A provider orders nitroprusside 3 meg per kg per min. IV. The IV bag contains nitroprusside 50 mg in 250 mL DSW and the patient weighs 85 kg. (round to the tenths) 1407 units 48. 49. Calculate the weight-based infusion rate: A provider orders inamrinone 0.015 mg per kg per min. The IV bag contains inamrinone 200 mg in 500 mL solution. The patient weight is 149 pounds _(round to the tenths) 50. Calculate the infusion rate: The provider orders amiodarone 2 mg per min. The IV bag contains amiodarone 900 mg in DSW 500 mL. _(round to tenths) 51. aculate the ml per hour for this IV infusion: A provider orders a procainamide IV drip o begin at 5.5 mg per min. The IV bag contains procainamide 2 g in D5W 500 mL. (round to the tenths)

Answer 1

48.Given

Order:Nitroprusside

Dose:3mcg/kg/min

Route:IV

Weight:85kg

When 1kg=3mcg

Then 85 kg=??mcg

=85×3÷1

=85×3

=255mcg

To convert in mg divide by 1000

=255÷1000

=0.25 mg

Available:50mg=250ml

When 50mg=250 ml

Then 0.25mg=??ml

Cross multiply and divide

=0.25×250÷50

=62.5÷50

=1.25 ml

Ans:Upon rounding off it is 1.3 ml

49.Given

Order:Inamrinone

Dose:0.015mg/kg/min

Available:200mg=500ml

Weight:149lbs(0.454×149=67.6 kg)

When 1kg=0.015mg /min

Then 67.6 kg=?? mg/min

Cross multiply and divide

=67.6×0.015÷1

=67.6×0.015

=1.01 mg/min or 1mg/min

When200mg=500ml

Then 1mg=??ml

Cross multiply and divide

=1×500÷200

=500÷200

=2.5 ml

Ans:2.5ml  to be infused per min

50. Given

Order:Amiodorone

Dose:2mg/min

Available:900mg in 500ml D5W

So 2mg=??ml

Cross multiply and divide

=2×500÷900

=1000÷900

=1.11ml/min

Ans:Upon rounding of it is 1.1ml/min to be to be infused

51.Given

Order:Procainamide

Dose:5.5mg/min

Route:IV

Available:2g=500ml D5W (2000mg=500ml D5W)

Therefore 5.5mg=??ml

Cross multiply and divide

=5.5×500÷2000

=2750÷2000

=1.375 ml or 1.4 ml/min

When 1.4ml=1min

Then 500ml=??min

Cross multiply and divide

=500×1÷1.4

=500÷1.4

=357 min

To calculate in hours divide by 60

=357÷60

=5.95 or 6 hour

Flow rate:Total volume (ml)÷Total time(hour)

=500÷6

=83.33

Ans:Upon rounding off it is 83.3 ml/hour