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

Increase the risk for bleeding

Cause severe headache

Decrease the effects of the warfarin (Coumadin)

Cause severe hypotension

Answer and Explanation

The Correct Answer is A

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.

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Free Nursing Study Resources

Correct Answer is D

Explanation

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.

A. Nausea and vomiting B. Orthostatic hypotension C. Hypertension D. Dizziness

Correct Answer is C

Explanation

A. Nausea and vomiting: Nausea and vomiting can occur with epoetin alfa, but it's not the most common side effect.

B. Orthostatic hypotension: This is not a common side effect of epoetin alfa. Orthostatic hypotension is a decrease in blood pressure upon standing.

C. Hypertension: Epoetin alfa stimulates the production of red blood cells. When the red blood cell count increases too quickly, it can lead to increased blood pressure, which is the most common adverse effect.

D. Dizziness: Dizziness can occur with epoetin alfa, but it's less common than hypertension.

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

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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

Correct Answer is D

Explanation

The most common adverse effect of epoetin alfa is:

Correct Answer is C

Explanation

A nurse is reviewing laboratory data from a client who has pulmonary embolism and is receiving IV heparin. Which of the following findings should the nurse report to the provider?

is the stopping of blood flow, an essential mechanism protecting the body from both external and internal injury.

When asked if there are any regulatory controls on herbal or dietary supplements, the nurse responds to the client by informing him that herbal and dietary supplements are regulated by the:

When beginning herbal products, the nurse understands that the best way to identify allergic or other adverse reactions is to have the client:

A nurse is collecting data from a client who is receiving clopidogrel following the placement of a cardiac stent. Which of the following findings should the nurse identify as an adverse effect of this medication?

A nurse is caring for a client who has a prescription for clopidogrel. Which of the following actions should the nurse plan to take?

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.)