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A nurse is performing a preoperative drug history on a client who is admitted to the hospital for surgery. To evaluate the risk of hemorrhage, the nurse will ask the client about antiplatelet and anticoagulant medications as well as which dietary supplement?

A.

St. John's Wort

B.

Coenzyme Q-10

C.

Ginkgo biloba

D.

Ma Huang

Answer and Explanation

The Correct Answer is C

A) St. John's Wort is not typically associated with an increased risk of bleeding.

B) Coenzyme Q-10 is not known to have significant anticoagulant or antiplatelet effects.

C) Ginkgo biloba is a dietary supplement that may increase the risk of bleeding, and its use should be assessed preoperatively. 

D) Ma Huang (ephedra) is associated with cardiovascular stimulation rather than anticoagulant effects. 


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Related Questions

Correct Answer is A

Explanation

A) Antibiotics can interact with warfarin, potentially affecting the INR, so dose adjustments may be necessary.

B) Pink urine is not an expected side effect of warfarin; this statement is inaccurate.

C) Eating spinach to increase iron count is not a relevant action related to warfarin or INR levels.

D) Warfarin interacts with many substances, including herbal remedies and aspirin. Notifying the provider before taking new medications or supplements is crucial for proper management.

Correct Answer is B

Explanation

A) Antibiotic resistance is not a reason to adjust the dose of gentamicin.

B) Gentamicin is primarily excreted by the kidneys. In the presence of renal disease, the dose may need to be adjusted to prevent toxicity.

C) Liver disease does not directly impact the metabolism or excretion of gentamicin, so it is not typically a factor in dose adjustment.

D) Interpatient variation alone may not prompt a specific dose adjustment; individual patient factors, especially renal function, are crucial in determining gentamicin dosage.

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