The patient requests information on alternative treatments for her arthritis. The nurse provides the patient with information on which of the following supplements?

Fish oil

DHEA

Garlic and soy

Chondroitin and glucosamine

Answer and Explanation

The Correct Answer is D

A. Fish oil: While fish oil has some evidence for reducing inflammation, the evidence for its effectiveness in treating arthritis is mixed.

B. DHEA: DHEA is a hormone and there is not enough evidence to support its use for arthritis.

C. Garlic and soy: While garlic and soy have some general health benefits, there is no strong evidence they are effective for treating arthritis.

D. Chondroitin and glucosamine: These supplements are the most studied option for arthritis and some studies have shown they may provide modest pain relief, although the evidence is not conclusive.

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Correct Answer is A

Explanation

A. Increase the risk for bleeding: Herbal supplements like green tea, ginkgo, feverfew, garlic, and ginger can potentiate the effects of warfarin by enhancing its anticoagulant properties. This increases the risk of bleeding, as warfarin itself is a blood thinner designed to prevent clot formation. These herbs can further inhibit platelet aggregation or enhance anticoagulation, leading to a higher risk of bleeding complications.

B. Cause severe headache: While some herbal supplements can cause headaches as a side effect, this is not the primary concern when combined with warfarin. The interaction between these herbs and warfarin does not commonly result in severe headaches. The primary issue is the increased risk of bleeding.

C. Decrease the effects of the warfarin (Coumadin): These particular herbal supplements do not generally decrease the effects of warfarin. In fact, they are more likely to increase its anticoagulant effects. Some other substances might interfere with warfarin's efficacy, but the herbs listed are known to enhance its bleeding risk.

D. Cause severe hypotension: Severe hypotension is not a common result of combining these herbal supplements with warfarin. The primary interaction is related to the blood-thinning effects, not to blood pressure regulation. Herbal supplements that might affect blood pressure are not typically those that interact significantly with warfarin in this manner.

A. White blood cell count (WBC) B. Activated partial thromboplastin time (aPTT) C. Prothrombin time (PT) D. Platelet count

Correct Answer is C

Explanation

White Blood Cell Count (WBC): WBCs are part of the immune system and play a role in fighting infections. However, they are not directly involved in hemostasis or clot formation. WBCs do not adhere to the vessel wall during hemostasis.
Activated Partial Thromboplastin Time (aPTT): aPTT measures the time it takes for blood to clot. It is primarily used to monitor heparin therapy, not warfarin. aPTT is not specific for warfarin monitoring.
Prothrombin Time (PT): PT measures how quickly blood clots. It is used to monitor warfarin therapy and assess clotting factors. PT is essential for monitoring warfarin effectiveness.
Platelet Count: Platelets are crucial for clot formation. Platelet count helps assess platelet function. Platelets play a direct role in hemostasis.

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The patient requests information on alternative treatments for her arthritis. The nurse provides the patient with information on which of the following supplements?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client taking warfarin (Coumadin) should be instructed to avoid herbal supplements such as green tea, ginkgo, feverfew, garlic, and ginger because these could:

Correct Answer is A

Explanation

A nurse is caring for a client who has a new prescription for warfarin. The nurse should use the results of which of the following diagnostic tests to monitor the effect of this therapy?

Correct Answer is C

Explanation

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A patient has been taking heparin for three days and has developed hematuria. The most appropriate action for the nurse is to:

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Which of the following statements would most likely NOT be allowed on the label of a dietary supplement?

The patient is to be started on warfarin (Coumadin) therapy. It is important for the nurse to check for the use of which herbs? (Select All that Apply.)

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