A nurse is assisting with the preparation of an educational program about the use of oral contraceptives. The nurse should include that which of the following herbal supplements reduces the effectiveness of oral contraceptives?

Ginger root

St. John's wort

Gingko biloba

Glucosamine

Answer and Explanation

The Correct Answer is B

A.   Ginger root is not known to reduce the effectiveness of oral contraceptives significantly.

B.   St. John's wort is an herbal supplement that can induce the cytochrome P450 enzyme system, leading to increased metabolism of oral contraceptives and potentially reducing their effectiveness. Women taking oral contraceptives should be cautioned against using St. John's wort or advised to use alternative contraceptive methods.
C.   Gingko biloba is not known to reduce the effectiveness of oral contraceptives significantly.
D.   Glucosamine is not known to reduce the effectiveness of oral contraceptives significantly.

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Correct Answer is C

Explanation

A. Methylergonovine is not indicated for preventing postpartum infections. Its primary action is on uterine smooth muscle to induce contractions, rather than having antimicrobial properties.
B. While methylergonovine can cause hypertension as a side effect, it's not used to prevent hypertension. It is used primarily to prevent or treat postpartum hemorrhage by promoting uterine contraction.
C. Methylergonovine is a uterotonic medication used to prevent or treat postpartum hemorrhage by causing uterine contractions, thereby reducing the risk of excessive bleeding after childbirth.
D. Methylergonovine does not prevent thromboembolic events; its mechanism of action primarily involves stimulation of uterine smooth muscle contraction rather than affecting blood coagulation.

A. Deltoid B. Vastus lateralis C. Ventrogluteal D. Dorsogluteal

Correct Answer is B

Explanation

A. The deltoid muscle is typically used for intramuscular injections in adults, but it is not the preferred site for newborns due to their small muscle mass.
B. The vastus lateralis muscle, located on the lateral aspect of the thigh, is the preferred site for intramuscular injections in newborns and infants due to its large muscle mass and accessibility.
C. While the ventrogluteal site is commonly used for intramuscular injections in adults, it may not be as easily accessible or preferred in newborns.
D. The dorsogluteal site is not recommended for intramuscular injections in newborns due to the risk of injury to the sciatic nerve and other underlying structures.

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A nurse is assisting with the preparation of an educational program about the use of oral contraceptives. The nurse should include that which of the following herbal supplements reduces the effectiveness of oral contraceptives?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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