Question 1

Order: Heparin 25,000 units in 1000 mL 0.09% NS,infuse at 100 mL/h. Calculate the units per day if the dose is within the normal daily range (20,000-40,000 units in 24 h).

Accepted Answer

The answer of Order: Heparin 25,000 units in 1000 mL...

Question 2

Order: Digoxin (Lanoxin)0.25 mg IV daily. All dosages of digoxin are to be given over at least five minutes.The drug is supplied 0.25 mg/mL,which is further diluted in 4 mL of fluid.How many mL of medication would you administer per minute?

Accepted Answer

The total volume to be administered is 5 mL (1 mL of digoxin + 4 mL of diluent). Since it must be given over at least 5 minutes, you would administer 1 mL per minute.

Question 3

Order: Furosemide (Lasix)80 mg IVP now. Furosemide is ototoxic at high doses if given faster than 4 mg/minute.How many minutes would it take to administer this dosage?

Accepted Answer

To avoid ototoxicity, Furosemide should be administered at a rate not exceeding 4 mg/minute. For an 80 mg dose, it would take 80 mg / 4 mg/min = 20 minutes to administer safely.

Question 4

Order: Heparin 40,000 units in 1000 mL 0.9% NS,infuse at 40 mL/h. Calculate the units per day 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 40 mL/h, which results in 960 mL per day (40 mL/h * 24 h). The concentration is 40,000 units in 1000 mL, so the daily dose is 38,400 units (40,000 units/1000 mL * 960 mL), which is within the normal daily range of 20,000-40,000 units.

Question 5

If 150 mg of a drug is ordered IVP stat over two minutes,and the concentration of the drug is 75 mg/mL,find the total number of milliliters,and indicate how many milliliters you will administer per minute.

Accepted Answer

To find the total volume to administer, divide the ordered dose (150 mg) by the concentration (75 mg/mL): 150 mg / 75 mg/mL = 2 mL total. Since the drug is to be administered over two minutes, divide the total volume by 2 to find the rate per minute: 2 mL / 2 minutes = 1 mL/min.

Question 6

Order: Phenytoin (Dilantin)15 mg/kg loading dose IV push stat. Phenytoin is supplied 50 mg/mL and is to be administered at 25 mg/min.How many mL would you administer over how many minutes if the client weighs 65 kilograms?

Accepted Answer

The loading dose is calculated as 15 mg/kg for a 65 kg patient, which equals 975 mg. Since phenytoin is supplied as 50 mg/mL, you need 19.5 mL (975 mg / 50 mg/mL). Administering at 25 mg/min, it will take 39 minutes (975 mg / 25 mg/min).

Quiz 11: Flow Rates and Dosage Rates for Intravenous Medications

Order: Heparin 25,000 units in 1000 mL 0.09% NS,infuse at 100 mL/h. Calculate the units per day if the dose is within the normal daily range (20,000-40,000 units in 24 h) .

Order: Digoxin (Lanoxin) 0.25 mg IV daily. All dosages of digoxin are to be given over at least five minutes.The drug is supplied 0.25 mg/mL,which is further diluted in 4 mL of fluid.How many mL of medication would you administer per minute?

Order: Furosemide (Lasix) 80 mg IVP now. Furosemide is ototoxic at high doses if given faster than 4 mg/minute.How many minutes would it take to administer this dosage?

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

If 150 mg of a drug is ordered IVP stat over two minutes,and the concentration of the drug is 75 mg/mL,find the total number of milliliters,and indicate how many milliliters you will administer per minute.

Order: Phenytoin (Dilantin) 15 mg/kg loading dose IV push stat. Phenytoin is supplied 50 mg/mL and is to be administered at 25 mg/min.How many mL would you administer over how many minutes if the client weighs 65 kilograms?