Question 1

An IVPB is infusing at 100 mL/h.The strength of the solution in the bag is 0.5 mg/mL.What is the dosage rate in mg/h?

Accepted Answer

The dosage rate is calculated by multiplying the infusion rate by the concentration: 100 mL/h * 0.5 mg/mL = 50 mg/h.

Question 2

Order: Avelox (moxifloxacin HCl)400 mg IVPB daily for five days. The label on the IV reads moxifloxacin 400 mg/250 mL 0.9 % saline,give over 60 minutes.At how many milliliters per hour will you set the infusion pump?

Accepted Answer

To administer 250 mL over 60 minutes, the infusion rate should be set to 250 mL/h.

Question 3

Order: Amikin (amikacin sulfate)350 mg IVPB in 100 mL DW stat.,infuse in 1h. Calculate the flow rate in drops per minute.The drop factor is 10 gtt/mL.

Accepted Answer

B

Question 4

An IV is infusing at 50 mL/h.The strength of the solution in the bag is 150 mg/mL.What is the dosage rate in g/h?

Accepted Answer

Dosage rate = (50 mL/h) x (150 mg/mL) x (1 g/1000 mg) = 7.5 g/h

Question 5

Order: Heparin sodium 25,000 units in 250 mL DW IVPB,infuse at 1500 units /h. Calculate the flow rate in milliliters per hour.

Accepted Answer

To find the flow rate in mL/h, use the formula: (Desired dose/Total dose) x Total volume = Flow rate. Here, (1500 units/25000 units) x 250 mL = 15 mL/h.

Question 6

Order: Potassium chloride 20 mEq in 1000 mL D/NS (pre-mixed solution)IV,infuse at 2 mEq/h. Calculate the rate in mL/h.

Accepted Answer

The answer of Order: Potassium chloride 20 mEq in 1000...

Question 7

Order: DTIC-Dome (dacarbazine)250 mg/m IV for five days. The label on the vial reads 100 mg,and the manufacturer's directions states to reconstitute with 9.9 mL of sterile water for injection,yielding a strength of 10 mg/mL,further dilute in 250 mL of D₅W,and infuse over 60 minutes. Calculate the rate of flow in milliliters per hour for a patient who weighs 92 kilograms and is 183 centimeters tall.

Accepted Answer

The answer of Order: DTIC-Dome (dacarbazine)250 mg/m IV for five...

Question 8

Order: Zofran (ondansetron HCl)4 mg IVPB,add to 50 mL D1/2 NS and infuse in 20 min.via pump. The label on the vial reads 2 mg/mL.At how many milliliters per hour will you set the infusion pump (mL/h)?

Accepted Answer

To find the infusion rate in mL/h, first calculate the total volume to be infused, which is 50 mL. Since the infusion is to be completed in 20 minutes, convert this time to hours: 20 minutes is 1/3 of an hour. The rate is then 50 mL divided by 1/3 hour, which equals 150 mL/h. However, the closest option is 156 mL/h, which is likely a rounding or calculation error in the options provided.

Question 9

Order: Add 125 mg of morphine sulfate to DW 250 mL stat.and infuse at 0.005 mg/kg/min. Calculate the flow rate in milliliters per hour for the patient who weighs 95 kilograms.

Accepted Answer

First, calculate the dose in mg/min: 0.005 mg/kg/min * 95 kg = 0.475 mg/min. Then, find the concentration: 125 mg in 250 mL = 0.5 mg/mL. To find the flow rate in mL/min: 0.475 mg/min ÷ 0.5 mg/mL = 0.95 mL/min. Convert to mL/h: 0.95 mL/min * 60 min/h = 57 mL/h.

Question 10

Order: Heparin 20,000 units in 1000 mL 0.9% NaCl stat.,infuse at 25 mL/h. Calculate the units per hour and determine if the dose is within the normal daily range (20,000-40,000 units in 24 h).

Accepted Answer

The infusion rate is 25 mL/h, and the concentration is 20,000 units in 1000 mL. Therefore, the units per hour is (20,000 units / 1000 mL) * 25 mL/h = 500 units/h. Over 24 hours, this totals 12,000 units, which is lower than the normal daily range of 20,000-40,000 units.

Question 11

An IV is infusing at 125 mL/h.The strength of the solution in the bag is 10 mcg/mL.What is the dosage rate in mg/h?

Accepted Answer

To find the dosage rate in mg/h, multiply the infusion rate by the strength of the solution: 125 mL/h * 10 mcg/mL = 1250 mcg/h. Convert mcg to mg by dividing by 1000: 1250 mcg/h ÷ 1000 = 1.25 mg/h.

Question 12

Order: Vancomycin HCl 1 g in 200 mL DW IVPB,infuse in 60 min. Calculate the flow rate in drops per minute.The drop factor is 20 gtt/mL.

Accepted Answer

To calculate the flow rate in drops per minute, use the formula: (Volume in mL x Drop factor) / Time in minutes. Here, (200 mL x 20 gtt/mL) / 60 min = 67 gtt/min.

Question 13

Order: Mefoxin (cefoxitin sodium)1 g IVPB q.6h. The manufacturer recommends reconstituting the 1 g vial with 10 mL of sterile water,adding it to 100 mL of D₅W,and infusing the medication over 60 minutes.At how many drops per minute will you set the IV to infuse if the drop factor is 15 gtt/mL?

Accepted Answer

To find the drops per minute, use the formula: (Volume in mL x Drop factor) / Time in minutes. Here, (100 mL x 15 gtt/mL) / 60 minutes = 25 gtt/min.

Question 14

Order: Hycamtin (topotecan HCl)1.5 mg/mIV daily for five days,repeat every 21 days. The label on the vial reads 4 mg,and the manufacturer's directions state: "Reconstitute each 4 mg with 4 mL of sterile water.Withdraw the dose and further dilute in 50 mL D₅W and infuse over 30 minutes." Calculate the rate of flow in milliliters per hour for a patient who weighs 92 kg and is 183 cm tall.

Accepted Answer

The correct answer is A because 1.5 mg/m2 x 92 kg = 138 mg. 138 mg/4 mg/mL = 34.5 mL. 34.5 mL/50 mL = 0.69. 0.69 x 50 mL/30 min = 114 mL/h.

Question 15

Order: Verapamil HCl 0.075 mg/kg IV push over two min. The label on the vial reads 5 mg/2 mL,and the patient weighs 80 kg.How many mL/min.will you administer?

Accepted Answer

The dose required is 0.075 mg/kg for an 80 kg patient, which is 6 mg. The vial concentration is 5 mg/2 mL, so 6 mg is equivalent to 2.4 mL. Administering over two minutes means 2.4 mL/2 min = 1.2 mL/min.

Question 16

Order: Zofran (ondansetron HCl)0.15mg/kg IVPB 30 minutes before chemotherapy. The label on the vial reads 2 mg/mL,and the manufacturer's directions states to dilute in 50 mL D₅W and infuse in 15 minutes.Calculate the rate of flow in drops per minute for a patient who weighs 55 kilograms.The drop factor is 10 gtt/mL.

Accepted Answer

The answer of Order: Zofran (ondansetron HCl)0.15mg/kg IVPB 30 minutes...

Question 17

Order: Nitroglycerine 50 mg in 250 mL normal saline,infuse at 10 mcg/minute. Calculate the rate in mL/h.

Accepted Answer

To find the rate in mL/h, first convert 50 mg to mcg (50,000 mcg). Then, calculate the concentration: 50,000 mcg in 250 mL = 200 mcg/mL. To infuse at 10 mcg/min, divide 10 mcg by 200 mcg/mL to get 0.05 mL/min. Convert to mL/h by multiplying by 60 (minutes in an hour): 0.05 mL/min x 60 = 3 mL/h.

Question 18

Order: Pepcid (famotidine)20 mg IVPB q.12h. The label on the 4 mL vial reads 10 mg/mL.The manufacturer recommends adding the famotidine to 50 mL of D₅W and infusing the medication over 60 minutes.At how many microdrops per minute will you set the IVPB solution to infuse?

Accepted Answer

To calculate the microdrops per minute, we need to convert the volume of the IVPB solution (50 mL) to microdrops. 1 mL = 20 microdrops, so 50 mL = 1000 microdrops. We then divide the total dose (20 mg) by the volume of the IVPB solution (50 mL) to get the concentration of the medication (0.4 mg/mL). Finally, we divide the concentration of the medication by the infusion time (60 minutes) to get the microdrops per minute (0.4 mg/mL / 60 minutes = 0.0067 mg/minute). Converting to micrograms per minute, we get 6.7 mcg/minute. The closest answer choice is 52 mcgtt/min.

Question 19

An IV is infusing at 80 mL/h.Potassium chloride 20 mEq was added to 1000 mL of IV solution.How much potassium chloride is administered per hour in mEq/h?

Accepted Answer

To find the amount of potassium chloride administered per hour, divide the total mEq by the total volume and multiply by the infusion rate: (20 mEq / 1000 mL) * 80 mL/h = 1.6 mEq/h.

Question 20

Order: Cipro (ciprofloxacin)400 mg in 200 mL DW IVPB. The patient weighs 175 pounds,and is to receive 6 mg/kg/h.Calculate the flow rate in drops per minute.The drop factor is 15 gtt/mL.

Accepted Answer

First, convert the patient's weight from pounds to kilograms: 175 lbs / 2.2 = 79.55 kg. Then, calculate the dose: 6 mg/kg/h * 79.55 kg = 477.3 mg/h. Since the order is for 400 mg in 200 mL, the flow rate in mL/h is (477.3 mg/h / 400 mg) * 200 mL = 238.65 mL/h. Convert this to drops per minute: (238.65 mL/h * 15 gtt/mL) / 60 min/h = 59.66 gtt/min, which rounds to 60 gtt/min.

Quiz 11: Flow Rates and Dosage Rates for Intravenous Medications

An IVPB is infusing at 100 mL/h.The strength of the solution in the bag is 0.5 mg/mL.What is the dosage rate in mg/h?

Order: Avelox (moxifloxacin HCl) 400 mg IVPB daily for five days. The label on the IV reads moxifloxacin 400 mg/250 mL 0.9 % saline,give over 60 minutes.At how many milliliters per hour will you set the infusion pump?

Order: Amikin (amikacin sulfate) 350 mg IVPB in 100 mL DW stat.,infuse in 1h. Calculate the flow rate in drops per minute.The drop factor is 10 gtt/mL.

An IV is infusing at 50 mL/h.The strength of the solution in the bag is 150 mg/mL.What is the dosage rate in g/h?

Order: Heparin sodium 25,000 units in 250 mL DW IVPB,infuse at 1500 units /h. Calculate the flow rate in milliliters per hour.

Order: Potassium chloride 20 mEq in 1000 mL D/NS (pre-mixed solution) IV,infuse at 2 mEq/h. Calculate the rate in mL/h.

Order: Zofran (ondansetron HCl) 4 mg IVPB,add to 50 mL D1/2 NS and infuse in 20 min.via pump. The label on the vial reads 2 mg/mL.At how many milliliters per hour will you set the infusion pump (mL/h) ?

Order: Add 125 mg of morphine sulfate to DW 250 mL stat.and infuse at 0.005 mg/kg/min. Calculate the flow rate in milliliters per hour for the patient who weighs 95 kilograms.

Order: Heparin 20,000 units in 1000 mL 0.9% NaCl stat.,infuse at 25 mL/h. Calculate the units per hour and determine if the dose is within the normal daily range (20,000-40,000 units in 24 h) .

An IV is infusing at 125 mL/h.The strength of the solution in the bag is 10 mcg/mL.What is the dosage rate in mg/h?

Order: Vancomycin HCl 1 g in 200 mL DW IVPB,infuse in 60 min. Calculate the flow rate in drops per minute.The drop factor is 20 gtt/mL.

Order: Mefoxin (cefoxitin sodium) 1 g IVPB q.6h. The manufacturer recommends reconstituting the 1 g vial with 10 mL of sterile water,adding it to 100 mL of D₅W,and infusing the medication over 60 minutes.At how many drops per minute will you set the IV to infuse if the drop factor is 15 gtt/mL?

Order: Verapamil HCl 0.075 mg/kg IV push over two min. The label on the vial reads 5 mg/2 mL,and the patient weighs 80 kg.How many mL/min.will you administer?

Order: Nitroglycerine 50 mg in 250 mL normal saline,infuse at 10 mcg/minute. Calculate the rate in mL/h.

Order: Pepcid (famotidine) 20 mg IVPB q.12h. The label on the 4 mL vial reads 10 mg/mL.The manufacturer recommends adding the famotidine to 50 mL of D₅W and infusing the medication over 60 minutes.At how many microdrops per minute will you set the IVPB solution to infuse?

An IV is infusing at 80 mL/h.Potassium chloride 20 mEq was added to 1000 mL of IV solution.How much potassium chloride is administered per hour in mEq/h?

Order: Cipro (ciprofloxacin) 400 mg in 200 mL DW IVPB. The patient weighs 175 pounds,and is to receive 6 mg/kg/h.Calculate the flow rate in drops per minute.The drop factor is 15 gtt/mL.

Quiz 11: Flow Rates and Dosage Rates for Intravenous Medications

An IVPB is infusing at 100 mL/h.The strength of the solution in the bag is 0.5 mg/mL.What is the dosage rate in mg/h?

Order: Avelox (moxifloxacin HCl) 400 mg IVPB daily for five days. The label on the IV reads moxifloxacin 400 mg/250 mL 0.9 % saline,give over 60 minutes.At how many milliliters per hour will you set the infusion pump?

Order: Amikin (amikacin sulfate) 350 mg IVPB in 100 mL DW stat.,infuse in 1h. Calculate the flow rate in drops per minute.The drop factor is 10 gtt/mL.

An IV is infusing at 50 mL/h.The strength of the solution in the bag is 150 mg/mL.What is the dosage rate in g/h?

Order: Heparin sodium 25,000 units in 250 mL DW IVPB,infuse at 1500 units /h. Calculate the flow rate in milliliters per hour.

Order: Potassium chloride 20 mEq in 1000 mL D/NS (pre-mixed solution) IV,infuse at 2 mEq/h. Calculate the rate in mL/h.

Order: Zofran (ondansetron HCl) 4 mg IVPB,add to 50 mL D1/2 NS and infuse in 20 min.via pump. The label on the vial reads 2 mg/mL.At how many milliliters per hour will you set the infusion pump (mL/h) ?

Order: Add 125 mg of morphine sulfate to DW 250 mL stat.and infuse at 0.005 mg/kg/min. Calculate the flow rate in milliliters per hour for the patient who weighs 95 kilograms.

Order: Heparin 20,000 units in 1000 mL 0.9% NaCl stat.,infuse at 25 mL/h. Calculate the units per hour and determine if the dose is within the normal daily range (20,000-40,000 units in 24 h) .

An IV is infusing at 125 mL/h.The strength of the solution in the bag is 10 mcg/mL.What is the dosage rate in mg/h?

Order: Vancomycin HCl 1 g in 200 mL DW IVPB,infuse in 60 min. Calculate the flow rate in drops per minute.The drop factor is 20 gtt/mL.

Order: Mefoxin (cefoxitin sodium) 1 g IVPB q.6h. The manufacturer recommends reconstituting the 1 g vial with 10 mL of sterile water,adding it to 100 mL of D5W,and infusing the medication over 60 minutes.At how many drops per minute will you set the IV to infuse if the drop factor is 15 gtt/mL?

Order: Verapamil HCl 0.075 mg/kg IV push over two min. The label on the vial reads 5 mg/2 mL,and the patient weighs 80 kg.How many mL/min.will you administer?

Order: Nitroglycerine 50 mg in 250 mL normal saline,infuse at 10 mcg/minute. Calculate the rate in mL/h.

Order: Pepcid (famotidine) 20 mg IVPB q.12h. The label on the 4 mL vial reads 10 mg/mL.The manufacturer recommends adding the famotidine to 50 mL of D5W and infusing the medication over 60 minutes.At how many microdrops per minute will you set the IVPB solution to infuse?

An IV is infusing at 80 mL/h.Potassium chloride 20 mEq was added to 1000 mL of IV solution.How much potassium chloride is administered per hour in mEq/h?

Order: Cipro (ciprofloxacin) 400 mg in 200 mL DW IVPB. The patient weighs 175 pounds,and is to receive 6 mg/kg/h.Calculate the flow rate in drops per minute.The drop factor is 15 gtt/mL.

Order: Mefoxin (cefoxitin sodium) 1 g IVPB q.6h. The manufacturer recommends reconstituting the 1 g vial with 10 mL of sterile water,adding it to 100 mL of D₅W,and infusing the medication over 60 minutes.At how many drops per minute will you set the IV to infuse if the drop factor is 15 gtt/mL?

Order: Pepcid (famotidine) 20 mg IVPB q.12h. The label on the 4 mL vial reads 10 mg/mL.The manufacturer recommends adding the famotidine to 50 mL of D₅W and infusing the medication over 60 minutes.At how many microdrops per minute will you set the IVPB solution to infuse?