Practice Problems

Convert 3/4 to decimal form

Convert 80 percent to decimal form

Round to the nearest hundredth: 0.995

Round to the nearest tenth: 12.38

Round to the whole number: 3.4

Solve: 0.01 x 0.01 = 

Solve: 1.23 x 100 = 

Solve: 1,000 x 0.1 =

Solve: 8.5 x 0.001 =

Solve: 1.5/2 =

Convert 2 mg to mcg

Convert 125 mcg to mg

Convert 2 g to mg

Convert 125 pounds to kg

Convert 30 pounds to kg

Convert 8 fluid oz to ml

Convert 1 cup to ml

Convert 2 tablespoon to ml

Convert 5 ft 10 in to cm

Convert 4 ft 8 in to cm

Order for warfarin 2 mg oral daily.  Available is warfarin 4 mg tablets.  What will the nurse administer?

Order for aspirin 324 mg oral for chest pain.  Available is aspirin 81 mg tablets.  What will the nurse administer?

Patient is having anxiety.  There is a prn order for prochlorperazine 10 mg PO every 8 hours for nausea/vomiting.  Available from pharmacy is prochlorperazine 5 mg tablets.  What will the nurse administer?

Morphine 5 mg IV is ordered for a patient in pain.  Pharmacy supplies morphine 10 mg/ml.  What will the nurse administer?

Order for lisinopril 20 mg PO daily.  Available from pharmacy is enalapril 10 mg tablets.  What will the nurse administer?

Order for heparin 5,000 units SQ.  Available is heparin 5,000 units/ml for injection.  What will the nurse administer?

Patient is having a fever of 101.5 degrees F.  Order for acetaminophen 650 mg PO for fever over 100.5 degrees F.  Available from pharmacy is acetaminophen 325 mg tablets.  What will the nurse administer?

Order for digoxin 0.25 mg PO.  Available is digoxin 125 mcg tablets.  What will the nurse administer?

Order for furosemide 20 mg IV.  Available is furosemide 10 mg/ml.  What will the nurse administer?

Patient is having nausea.  Order for ondansetron 4 mg IV every 8 hours prn nausea.  Available is ondansetron 4 mg tablets.  What will the nurse administer?

Patient with ear infection weighs 22 pounds.  Order for amoxicillin 225 mg PO every 12 hours.  Safe dose is 45 mg/kg/day in two divided doses.  Available is amoxicillin 200 mg/5 ml suspension.  What will the nurse administer?

A patient weighing 180 pounds is getting readied for cardiovascular surgery.  Ordered is heparin IV 20,000 units.  The safe range for this medication for this procedure is 150 to 400 units/kg.  Heparin 5,000 units/ml is available.  What will the nurse administer?

Methylphenidate 10 mg PO daily is ordered for a 73.33 pound adolescent suffering from attention deficit disorder.  The safe dose is 0.3 mg/kg/day.  Available is methylphenidate 20 mg tablets.  What will the nurse administer?

Methadone 5 mg PO every 6 hours is ordered for a patient weighing 118 pounds.  The safe range for methadone is 0.2 to 0.4 mg/kg/day in 4 divided doses.  Supplied is methadone oral concentrate 10 mg/5 ml.  What will the nurse administer?

A child weighing 75 pounds has a severe skin infection and is ordered to receive daptomycin 5 mg/kg IV daily for 14 days.  The recommended dose is 5mg/kg.  Available is daptomycin 500mg/10ml.  What will the nurse administer?

The practitioner orders ibuprofen 20 mg/kg PO every 8 hours for a child weiging 120 pounds.  The max safe dose is 2.4 g/day.  The pharmacy supplies ibuprofen oral liquid 100 mg/5 ml.  What will the nurse administer?

The nurse contacts the provider and the above dose is reduced to 10 mg/kg every 8 hours.  What will the nurse now administer?

A child weighing 100 pounds has 12.5 mg/kg acetaminophen IV ordered every 4 hours.  The max safe dose is 3750 mg/day.  Supplied by pharmacy is acetaminophen 1000 mg/100 ml.  What will the nurse administer?

A 240 pound adult is getting ready for anesthesia and is ordered to have 0.044 mg/kg IV lorazepam to reduce any anxiety prior to the procedure.  The max safe dose is 2 mg.  Supplied from pharmacy is lorazepam for injection 2 mg/ml.  What will the nurse administer?

The nurse contacts the provider and receives an order for 0.015 mg/kg lorazepam IV for the above patient.  What will the nurse administer?

How long will a 1 l bag last at 120ml/hr?

How long will a 500 ml bag last at 15ml/hr?

The nurse hangs 1 l of NS at 17:00 with the pump set to 150 ml/hr.  When will another bag need to be hung?

The nurse hangs 500 ml of NS at 14:15 with the pump set to 250 ml/hr.  When will the bag be empty?

How many bags of 1 l LR are run in 24 hours if the pump is set to 250ml/hr?

NS is ordered to run at 100 ml/hr.  No pump is available.  The tubing drip factor is 10 gtt/ml.  How many gtt/min will the nurse set the infusion set to?

D5 0.45% NS is set to run at 75 ml/hr.  The pump broke.  The tubing has a drop factor of 15.  What will the nurse set the tubing drip rate to?

IV levofloxacin 750 mg in 150 ml is ordered to run over 90 minutes.  There is no pump available.  The tubing has a drop factor of 20.  What will the nurse set the drip rate to?

NS is running at 20 ml/hr to keep the vein open.  No pump is available.  The tubing has a drop factor of 10.  What will the nurse set the drip rate to?

An ICU patient has an insulin drip at a rate of 10 units/hr or 10 ml/hr.  The tubing has a drop factor of 10.  What will the nurse set the drip rate to?

Morphine 10 mg IV is ordered for a patient in pain.  Available is morphine 5 mg/ml.  Suggested push rate is 2.5 to 15 mg over 5 minutes, undiluted.  What volume will the nurse give and how many seconds per 0.5 ml will the delivery rate be?

Ketorolac 30 mg IV is ordered for a patient in acute pain.  Safe administration guidelines is undiluted over 15 seconds.  Supplied by pharmacy is ketorolac 15 mg/ml.  What volume will the nurse draw up and how many seconds per 0.5 ml will the delivery rate be?

Methylprednisolone 80 mg IV is ordered for a patient with COPD.  The safe administration for doses up to 125 mg is 5 minutes.  Supplied is methylprednisolone 40 mg vials in 2 ml sterile water.  What will the volume in the syringe be and how many ml will be delivered per minute?

A 210 pound patient in ICU is on a dobutamine drip for cardiac stimulation.  The rate is ordered at 4 mcg/kg/min.  Supplied is doputamine 250 mg/500 ml.  What will the nurse set the infusion pump to in mcg/min and ml/hour?

A 82 kg patient in ICU is needing to be placed on a propofol drip at 5 mcg/kg/min.  Available is propofol 10 mg/ml.  What will the nurse set the pump to in mcg/min and ml/hr?

The patient is stating that her pain is 7/10.  The physician has ordered the following prn pain medications: hydrocodone/acetaminophen 5/325 mg tablet every 4 hours as needed for pain of 1-3; hydrocodone/acetaminophen 10/325 mg tablet every 4 hours as needed for pain of 4-6; hydromorphone 2 mg IV every 4 hours as needed for pain 7-10.  Available is hydrocodone/acetaminophen 5/325 mg tablets, hydrocodone/acetaminophen 10/325 mg tablets, and hydromorphone 1mg/ml for injection.  What will the nurse administer?

Constipation is common  when taking an opioid.  The patient has had docusate and dulcolax and is still constipated.  The physician has ordered: docusate 100 mg PO as needed for constipation; dulcolax 10 mg rectal as needed for constipation (2nd choice); magnesium hydroxide 2.4 g PO (third choice).  Available are: docusate 100 mg capsules, dulcolax 10 mg suppositories, and magnesium hydroxide 400 mg/5 ml.  What will the nurse administer?

Morphine has a half-life of about 4 hours.  If a patient takes 10 mg at 06:00, what amount will likely be in his body at 10:00 the same day?

Warfarin has an average half-life of 40 hours.  What amount of warfarin 6mg dose remains in the body after 80 hours?

Insulin is adsorbed into infusion tubing at about a 50% amount.  If the patient absolutely needs to receive 10 units per hour, how much should the pump rate be set to? (physicians may or may not make these types of adjustments)

A blood transfusion has 325 ml of volume and needs to be infused in 4 hours.  What is the minimum rate to get all the blood transfused in the time limit?

Another blood transfusion of 340 ml is given at a rate of 120 ml/hr for the first 15 minutes, then the rate is increased to 240 ml/hr.  How long will the transfusion take in total?