Can you pass the OAK test? 64% can’t

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’ll publish

• 7 questions today
• 7 questions tomorrow and
• 6 questions and the answers on Thursday

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.

1. Missing one dose of Coumadin (warfarin):

•  a. has no effect
• b. can alter the drug’s effectiveness
•  c. is permissible as long as you take a double dose the next time
• d. is permissible as long as you watch which foods you eat

2. You can distinguish between different strengths of Coumadin (warfarin) tablets by what?

• a. color
• b. shape
• c. size
• d. weight

3. A patient on Coumadin (warfarin) therapy should contact the physician or healthcare provider who monitors it when:

• a. another physician adds a new medication
• b. another physician stops a current medication
• c. another physician changes a dose of a current medication
• d. all of the above

4. Occasionally eating a large amount of leafy greens vegetables while taking Coumadin (warfarin) can:

• a. increase your risk of bleeding from Coumadin (warfarin)
• b. reduce the effectiveness of the Coumadin (warfarin)
• c. cause upset stomach and vomiting
• d. reduce your risk of having a blood clot

5. Which of the following vitamins interacts with Coumadin (warfarin)?

• a. vitamin B12
• b. vitamin A
• c. vitamin B6
• d. vitamin K

6. When is it safe to take a medication that interacts with Coumadin (warfarin)?

• a. if you take the Coumadin (warfarin) in the morning and the interacting medication at night
• b. if your healthcare provide is aware of the interaction and checks your PT/INR (“Protime”) regularly
• c. if you take your Coumadin (warfarin) every other day
• d. it is never safe to take a medication that interacts with Coumadin (warfarin)

7. The PT/INR (“Protime”) test is:

• a. a blood test used to monitor your Coumadin (warfarin) therapy
• b. a blood test that is rarely done while on Coumadin (warfarin)
• c. a blood test that checks the amount of vitamin K in your diet
• d. a blood test that can determine if you need to be on Coumadin (warfarin)

Remember to check back tomorrow!

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