The nurse is obtaining a history from a client who discloses daily use of St. John's Wort in addition to prescription drugs. Which effect of this dietary supplement would most concern the nurse?
It increases the risk of bleeding.
It enhances the effects of all drugs.
It counteracts the effects of central nervous system (CNS) depressants.
It accelerates the metabolism of some drugs.
The Correct Answer is A
a) St. John's Wort is known to increase the risk of bleeding, especially when used with anticoagulant medications. This effect is particularly concerning and may require adjustments in the treatment plan.
b) While St. John's Wort can interact with various drugs, increasing the risk of bleeding is a more immediate concern.
c) St. John's Wort does not counteract the effects of CNS depressants; it may actually enhance the effects of these drugs.
d) St. John's Wort is known to induce the metabolism of some drugs, potentially reducing their effectiveness, but this is not as immediately concerning as the risk of bleeding.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","E"]
Explanation
a) Advising the client to avoid prolonged immobility and participate in exercise activities is a general health recommendation but not specifically related to warfarin therapy.
b) Safe and effective warfarin therapy requires rigid adherence to the dosing schedule to maintain therapeutic anticoagulation levels.
c) Monitoring PT/INR frequently initially and then regularly helps assess the effectiveness and safety of warfarin therapy.
d) Encouraging the use of NSAIDs is not recommended with warfarin due to the increased risk of bleeding.
e) Instructing the client to avoid foods high in Vitamin K is important because Vitamin K can interfere with the anticoagulant effects of warfarin.
Correct Answer is A
Explanation
a) Transdermal estrogen therapy may have reduced side effects compared to oral preparations.
b) Intravaginal preparations may be more focused on genitourinary symptoms and may not necessarily reduce side effects.
c) An estrogen-progesterone combination is often used to prevent endometrial hyperplasia but may not necessarily increase side effects.
d) While side effects can occur at any age, the focus should be on the formulation of estrogen therapy, and transdermal preparations are often associated with reduced side effects.
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