A patient taking warfarin asks whether to stop eating leafy green vegetables. Explain that their vitamin K intake should remain rather than eliminating these foods.
3 Anticoagulant Safety Online Quiz Questions
Use this free practice quiz with 20 questions to review 3 Anticoagulant Safety, test your knowledge, and prepare for your next test or exam.
Apixaban belongs to which medication class?
True or false: Once a patient's INR is in range while taking warfarin, they no longer need INR testing.
- A
True
- B
False
Which test helps a clinician assess warfarin's effect and guide the dose?
Warfarin's anticoagulant effect can be reversed with .
True or false: If a patient misses a warfarin dose, they should double the next dose to make up for it.
- A
True
- B
False
A patient taking warfarin is scheduled for dental work and asks whether to stop the medication. Which guidance is most appropriate?
- A
Stop warfarin before the procedure without contacting the prescriber.
- B
Tell the dental team about warfarin and contact the prescriber before making any treatment change.
- C
Skip warfarin on the morning of the procedure, then resume it afterward.
- D
Make no mention of warfarin unless the dentist asks.
A patient taking apixaban asks whether an INR test is used to adjust the apixaban dose. Which response is best?
- A
A normal INR confirms that apixaban is at the correct dose.
- B
INR is not used routinely to adjust apixaban, but your care team may monitor other factors, such as kidney function and blood counts.
- C
Apixaban requires no clinical follow-up or laboratory monitoring of any kind.
- D
Stop apixaban before any blood test.
A nurse is preparing a weight-based unfractionated heparin infusion. Which action best reduces medication-error risk?
- A
Calculate the dose using ideal body weight without checking the order.
- B
Verify the patient's weight, concentration, calculations, pump settings, and required laboratory monitoring against the order and facility protocol.
- C
Use one aPTT target for every patient and facility.
- D
Change the infusion independently if a result is outside the target range.
Before administering a prescribed anticoagulant, which checks can help identify patient-specific safety concerns? Select all that apply.
- A
Confirm the indication and prescribed dose.
- B
Review relevant laboratory results and renal function when appropriate for the drug.
- C
Check other medications, including over-the-counter drugs and supplements.
- D
Assess for signs of bleeding or a recent fall or injury.
- E
Require an INR result for every anticoagulant before administration.
Which instructions are appropriate for a patient taking an anticoagulant? Select all that apply.
- A
Report unusual bleeding or blood in urine or stool promptly.
- B
Use aspirin or ibuprofen freely for pain while taking an anticoagulant.
- C
Check with the care team before starting a medicine that could increase bleeding risk.
- D
Seek prompt assessment after a significant fall or head injury.
A patient taking an anticoagulant reports black, tarry stool and dizziness. What is the nurse's priority?
- A
Reassure the patient that dark stool is expected and wait for the next appointment.
- B
Promptly assess the patient and escalate for urgent evaluation of possible bleeding.
- C
Tell the patient to skip the next dose and wait a week before seeking care.
- D
Recommend an over-the-counter pain reliever and monitor at home.
A patient taking warfarin asks how to manage leafy green vegetables in their diet. Which response is most appropriate?
- A
Stop eating leafy green vegetables.
- B
Keep vitamin K intake consistent.
- C
Double the next dose after a missed dose.
- D
Avoid telling the dentist about warfarin use.
Which anticoagulant is monitored using the INR to help guide its dose?
A patient taking apixaban asks whether routine INR tests are needed to adjust the medication. Which response is best?
- A
Routine INR testing is used to adjust every apixaban dose.
- B
Routine INR monitoring is not used to adjust apixaban, but the care team may monitor kidney function, blood counts, and other factors.
- C
No monitoring of any kind is needed while taking apixaban.
- D
Apixaban should be stopped before every blood test.
Besides aPTT, what assay may be used under a facility protocol to monitor an unfractionated heparin infusion? Enter the assay name.
Before administering a prescribed anticoagulant, which approach best supports safe medication administration?
- A
Confirm the indication and prescribed dose, relevant results and patient factors, other medicines or supplements, and signs of bleeding or recent injury.
- B
Confirm only that the patient has an anticoagulant listed in their chart.
- C
Require an INR result before administering any anticoagulant.
- D
Adjust the dose independently if the patient reports a possible side effect.
A patient taking an anticoagulant should not independently start, stop, or adjust the medication.
- A
True
- B
False
A patient taking warfarin is scheduled for dental work. Which instruction is most appropriate?
- A
Tell the dentist about the warfarin and contact the prescriber or care team for instructions before the procedure.
- B
Stop warfarin without contacting the prescriber.
- C
Take an extra dose before the procedure.
- D
Keep warfarin use private unless bleeding occurs.
A patient taking a factor Xa inhibitor arrives with life-threatening bleeding. Describe the nurse’s immediate priorities and the medication information to communicate to the emergency care team.