Do You Know Anticoagulant Therapy ? Play This Quiz

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Quizzes Created: 8 | Total Attempts: 59,086
| Attempts: 375 | Questions: 14 | Updated: Oct 3, 2025
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1. Which of the following medications is the "heparin antidote", or heparin antagonist?

Explanation

Protamine sulfate is the heparin antidote or heparin antagonist.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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About This Quiz
Do You Know Anticoagulant Therapy ? Play This Quiz - Quiz

Anticoagulants are given to people at a high risk of getting clots, to reduce their chances of developing serious conditions such as strokes and heart attacks. Heparin is one of the most used drugs, Test out what you know about it and others like it by taking the quiz below.... see more
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2. True or False:  Since heparin is an anticoagulant, there is no need to rotate sites with SQ injections.  

Explanation

False - you definitely want to rotate sites with heparin SQ injections.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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3. Which of the following foods should be avoided by patients on anticoagulant therapy?

Explanation

Anything with dark green leaves (spinach) should be avoided because these foods contain Vitamin K. Vitamin K is the "blood clotter" - it's the antidote for coumadin, and it works against anticoagulant medications.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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4. Which of the following medications is the "coumadin antidote", or coumadin antagonist?

Explanation

Vitamin K! NEVER confuse potassium with Vitamin K.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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5. What is the preferred site for heparin SQ injections?

Explanation

The abdomen is the preferred site - but go at least 2 inches away from the umbilicus. This is often referred to as the "heparin belt".

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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6. Which of the following correctly describes how heparin works?  Heparin works by:

Explanation

Heparin interrupts one of the steps in the "clotting cascade", and prevents the formation of good, stable clots. Clots can still form when on heparin - but hopefully they don't stay together long, and soon fall apart. Antiplatelet medications decrease platelet aggregation, and thrombolytics dissolve existing clots.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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7. Which of the following is NOT one of the "Low Molecular-Weight Heparins"?

Explanation

Coumadin is not a low molecular-weight heparin, but all the others are!

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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8. Which laboratory value is monitored with heparin therapy?

Explanation

PTT, or partial thromboplastin time, is monitored with heparin. You will often need to titrate the heparin dose according to the PTT levels.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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9. True or False:  IV Heparin must always be given via an IV pump. 

Explanation

ALWAYS use an IV pump with heparin!!!

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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10. Which two lab values are monitored with coumadin therapy?  

Explanation

With coumadin, you monitor PT and INR.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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11. True or False:  SQ Heparin works in 2 hours, and IV Heparin works within one hour.  

Explanation

False - SQ Heparin works within one hour, and IV heparin works immediately.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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12. When heparin is discontinued, how long does it take for clotting times to return to normal?

Explanation

After heparin is stopped, it takes approximately 2-6 hours for clotting times to return to normal.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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13. Which of the following symptoms needs to be reported immediately, when on anticoagulant therapy?  Select all that apply. 

Explanation

All of them! These could all be danger signs of excess bleeding - unusual abdominal or back pain could be signs of internal bleeding/GI bleed. New facial droop could be indicative of a hemorrhagic stroke.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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14. When injecting SQ heparin, which of the following steps is incorrect?  Select all that apply.

Explanation

You do NOT aspirate - and you do NOT massage the injection site.

LeMone, P., Burke, K., & Bauldoff, G. (2011). Medical-Surgical Nursing: Critical Thinking in Patient Care, 5th ed., San Francisco: Pearson. p.1053.

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Which of the following medications is the "heparin...
True or False:  Since heparin is an anticoagulant, there is no...
Which of the following foods should be avoided by patients on...
Which of the following medications is the "coumadin...
What is the preferred site for heparin SQ injections?
Which of the following correctly describes how heparin works?...
Which of the following is NOT one of the "Low Molecular-Weight...
Which laboratory value is monitored with heparin therapy?
True or False:  IV Heparin must always be given via an IV...
Which two lab values are monitored with coumadin therapy?  
True or False:  SQ Heparin works in 2 hours, and IV Heparin works...
When heparin is discontinued, how long does it take for clotting times...
Which of the following symptoms needs to be reported immediately, when...
When injecting SQ heparin, which of the following steps is incorrect?...
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