If you’re on warfarin you may be interested in the 20 multiple choice question OAK test (Oral Anticoagulation Knowledge test). It was developed in Maryland, US in 2006 by Zeolla. It was validated in the US and later in Malaysia, which means it is a trustworthy test for finding out how much people understand about taking warfarin.
The pass score is 15 or more out of 20. You may like to see if you can beat the average mark which was 12/20 with 64% of people failing the test.
we’re publishing
- 7 questions yesterday
- 7 questions today and
- 6 questions and the answers tomorrow
The Oral Anticoagulation Knowledge (OAK) Test © Zeolla MM, Brodeur MR, Dominelli A, Haines ST, Allie N
Instructions: For each question, select the answer you think is correct or best completes the sentence correctly. Please answer all questions.
8. Coumadin (warfarin) may be used to:
- a. treat people that already have a blood clot
- b. treat people that have high blood sugar levels
- c. treat people with high blood pressure
- d. treat people with severe wounds
9. A patient with a PT/INR (“Protime”) value below their “goal range”:
- a. is at an increase the risk of bleeding
- b. is at an increase the risk of having a clot
- c. is more likely to have a skin rash from the Coumadin (warfarin)
- d. is more likely to experience side effects from Coumadin (warfarin)
10. Taking a medication containing aspirin or other non-steroidal anti-inflammatory medications such as ibuprofen (Motrin® / Advil®) while on Coumadin (warfarin) will:
- a. reduce the effectiveness of the Coumadin (warfarin)
- b. increase your risk of bleeding from the Coumadin (warfarin)
- c. cause a blood clot to form
- d. require you to increase your dose of Coumadin (warfarin)
11. A person on Coumadin (warfarin) should seek immediate medical attention:
- a. if they skip more than two doses of Coumadin (warfarin) in a row
- b. if they notice blood in their stool when going to the bathroom
- c. if they experience a minor nosebleed
- d. if they develop bruises on their arms or legs
12. Skipping even one dose of your Coumadin (warfarin) can:
- a. cause your PT/INR (“Protime”) to be above the “goal range”
- b. increase your risk of bleeding
- c. cause your PT/INR(“Protime”) to be below the “goal range”
- d. decrease your risk of having a clot
13. Drinking alcohol while taking Coumadin (warfarin):
- a. is safe as long as you separate your dose of Coumadin (warfarin) and the alcohol consumption
- b. may affect your PT/INR (“Protime”)
- c. does not affect your PT/INR (“Protime”)
- d. is safe as long as you are on a low dose
14. Once you have been stabilized on the correct dose of Coumadin (warfarin), about how often should your PT/INR(“Protime”) value be tested?
- a. once a week
- b. once a month
- c. once every other month
- d. once every 3 months
Check back tomorrow for the final questions and all the answers
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The only one I’m not totally sure about is the last. I think the recommendation is normally for one month. But unless something changes – illness, medication etc – I have my INR tested every 6 weeks, the longest time between testing that the website allows. In the UK I had it tested every 8 weeks under normal circumstances.
BTW I love 13 and the notion that separating the timings of taking my warfarin and having a drink means the alcohol wouldn’t affect my INR. For me it’s steady, moderate (of course) and consistent that’s the answer if you enjoy a drink with a meal or whenever.
I do like the idea of checking our anticoagulant knowledge. When I started taking warfarin I didn’t really know too much about it.