Deck 8: Advanced Intravenous Calculations

Question 1

Total drug: Total volume: .
Hourly drug ordered: What is the hourly volume (mL per hr to nearest tenth of an mL)?

Answer 1

Question 2

Drug per kg per min: Weight: a. mcg per hr:
b. mg per hr (to nearest tenth of an mg):

Answer 2

Directions: Calculate the hourly intravenous (IV) flow rates.

Question 3

Total drug: Total volume: Hourly drug ordered: What is the hourly volume (mL per hr to nearest tenth of an mL)?

Answer 3

Question 4

Ordered: Sodium nitroprusside IV to maintain blood pressure.
Patient weight: Available: Sodium nitroprusside a. What is the total drug:total mL ratio?
b. How many mcg per hr are ordered?
c. How many mg per hr are ordered?
d. How many mL per hr are needed to the nearest tenth of an mL?

Question 5

Ordered: An IV of Available: The pharmacy-prepared IV contains Patient weight: a. What is the total drug:total mL ratio?
b. How many mcg per hr are ordered?
c. How many mg per hr are ordered?
d. How many mL per hr are needed to the nearest tenth of an mL?

Question 6

Ordered: Nicardipine hydrochloride IV for a patient with hypertension.
IV solution at bedside: nicardipine in of normal saline (NS) infusing at a. What is the total drug:total mL ratio?
b. What is the mL per hr ordered flow rate for this solution?
c. Is the solution infusing at the correct flow rate?
d. If not, what action should the nurse take?

Question 7

The IV for a patient in critical care is flowing at Ordered: IV: a. How many mg per hr are ordered?
b. What is the total drug:total mL ratio?
c. Is the flow rate correct? If not, what should it be?
d. What is the appropriate nursing action, if any?

Question 8

Drug per kg per min: 6 mcg per kg per min Weight: 55 kg
a. mcg per hr:
b. mg per hr (to nearest tenth of an mg):

Question 9

You check your patient's IV flow rate in ICU on a pump. It is Ordered: IV: of solution.
a. How many mg per hr are ordered?
b. What is the total drug:total mL ratio?
c. Is the flow rate correct? If not, what should it be?
d. What is the appropriate nursing action, if any?

Question 10

Ordered: Granisetron hydrochloride injection (Kytril) IV injection before chemotherapy to reduce nausea and vomiting.
Available: Kytril vial IV Patient weight: .
Dilution: May be given undiluted as an injection into a port over The nurse adds of sterile NS for injection to the medication for ease of timing the injection rate into the injection port.
a. What is the total dose of drug in mg to be given?
b. What is the total volume of drug for injection?
c. How many total seconds per calibration?

Question 11

Drug per kg per min: 2 mcg per kg per min .
Weight: 5.4 kg .
a. mcg per hr:
b. mg per hr (to nearest tenth of an mg):

Question 12

Ordered: Diltiazem hydrochloride 5 mg per hr IV infusion for a patient with an arrhythmia.
Available from pharmacy: Diltiazem 200 mg in 250 mL NS.
a. What is the total drug:total volume ratio in solution?
b. What is the flow rate for this order to nearest tenth of an mL?
c. How many mg per mL are in the final concentration?

Question 13

The patient's IV is flowing at Ordered: IV: of solution.
a. What is the total drug:total mL ratio?
b. How many mg per hr is the patient receiving?
c. Is the patient receiving the correct amount of medication?
d. What is the appropriate nursing action, if any?

Question 14

Total drug: Total volume: .
Hourly drug ordered: What is the hourly volume (mL per hr to nearest tenth of an mL)?

Question 15

Drug per kg per min: 5 mcg per kg per min Weight: 30 kg
a. mcg per hr:
b. mg per hr (to nearest tenth of an mg):

Question 16

Total drug: Total volume: Hourly drug ordered: What is the hourly volume (mL per hr to nearest tenth of an mL)?

Question 17

Drug per kg per min: 10 mcg per kg per min Weight: 75 kg
a. mcg per hr:
b. mg per hr (to nearest tenth of an mg):

Question 18

Ordered: Isoproterenol (Isuprel) IV infusion for a patient with coronary artery disease.
IV solution at bedside: Isuprel infusing at a. What is the total drug:total mL ratio?
b. How many mg per hr are ordered?
c. How many mL per hr are ordered?
d. Is the solution infusing at the correct flow rate?
e. If not, what action should the nurse take?

Question 19

The patient's IV is ordered for Available: a. What is the total drug:total mL ratio?
b. How many mcg per hr should the patient receive?
c. How many mg per hr should the patient receive?
d. How many mL per hr should the patient receive to the nearest tenth of an mL?

Question 20

Total drug: Total volume: Hourly drug ordered: What is the hourly volume (mL per hr to nearest tenth of an mL)?

Question 21

How many mg per mL are contained in this bag of IV solution?

Question 22

If a patient is receiving 1.5 mg per hr of a drug in an IV, how many mcg per min are being infused?

Question 23

Ordered: Dobutamine (Dobutrex) at 1 mcg per kg per min to be infused. Patient weight is 70 kg. The Dobutrex has been placed in 1 L of D5W.
What flow rate will you set (to nearest whole number)?

Question 24

Ordered: Morphine sulfate 10 mg direct IV for severe pain.
Literature recommendation: Dilute to 5 mL with sterile water for injection or sterile saline for injection and infuse over 4 min. a. How many mL of the drug will be withdrawn from the vial (to the nearest tenth)?
b. How many mL will be in the syringe after dilution? Indicate the dose on the syringe.
c. How many mL per min will be injected?
d. How many total seconds will the injection take?
e. How many seconds per calibration?

Question 25

Ordered: Dopamine IV at 4 mcg per kg per min.
Safe dose range (SDR): 2-10 mcg per kg per min. IV is flowing at 10 mL per hr.
Patient weight: 60 kg.
a. Is the order within SDR?
b. What is the total mg per min ordered?
c. What is the total mg per hr ordered (to the nearest tenth of an mg)?
d. How many total mL per hr are ordered?
e. Is the current IV flow rate correct? If not, what nursing actions are necessary?

Question 26

For an IV solution of Drug Y, 250 mg in 1000 mL, the hourly ordered drug is 10 mg. How many mL per hr will the rate be on the infusion pump?

Question 27

Ordered: Aminophylline 10 mg per hr for a patient with asthma.
Available: Aminophylline 250 mg in 1000 mL D5W infusing at 30 mL per hr on an infusion pump.
a. What is the ordered mL per hr flow rate?
b. Is the current flow rate correct? If not, what action should the nurse take?

Question 28

Ordered: Magnesium sulfate 1 g per hr for maintenance IV for a patient with preeclampsia.
Available: Magnesium sulfate 40 g per 250 mL D5W.
What flow rate you will set (in mL per hr rounded to nearest tenth of an mL) on the infusion pump?

Question 29

Ordered: Nitroprusside sodium at 0.4 mcg per kg per min for a patient with severe hypertension. Patient weight is 198 lb.
Available: Nitroprusside sodium 50 mg in 250 mL D5W.
a. What is the patient's weight in kg?
b. What is the hourly drug ordered in mg (to the nearest tenth of an mg)?
c. What is the flow rate to be set on the infusion pump?

Question 30

Ordered: Cardizem 20 mg IV for a rapid ventricular rate.
Available: Cardizem 5 mg per mL after reconstitution.
Literature recommendation: Give each single dose over 2 min.
a. What is the total mL to be injected?
b. What is the total mL per min to be injected?