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.

Answer and Explanation

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.

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Correct Answer is A

Explanation

A) Sildenafil and finasteride can both lower blood pressure, and concomitant use may increase the risk of hypotension.

B) Nitroglycerin use is a contraindication for sildenafil due to the risk of severe hypotension.

C) Benign prostatic hypertrophy alone may not be a contraindication for sildenafil use.

D) Mild hypertension alone may not be a contraindication for sildenafil, but it should be considered in the overall assessment of cardiovascular health.

A. "Cough medicine tastes bad, and infants usually won't take it." B. "Infants are more susceptible to central nervous system effects than adults are." C. "Babies have a more rapid gastric emptying time and don't absorb drugs well." D. "Infants metabolize drugs too rapidly, so drugs aren't as effective."

Correct Answer is B

Explanation

a) The taste of cough medicine is not the primary concern for not recommending it to infants. The key issue lies in potential adverse effects, especially on the central nervous system. b) Infants have an immature central nervous system and are more susceptible to the sedative effects of medications. This is a critical factor in avoiding medications with sedative side effects in infants.

c) Gastric emptying time and drug absorption are generally faster in infants, making them more susceptible to rapid drug effects rather than less. However, the central nervous system effects are of greater concern.

d) Infants may metabolize drugs differently, but this does not necessarily mean the drugs are less effective. The primary concern is the potential for increased susceptibility to adverse effects.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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