A nurse is teaching a group of young women about the use of oral contraceptives. The nurse should teach that taking Which of the following herbal preparations reduces the effectiveness of this birth control method?
Saw palmetto
Ginseng
St. John's wort
Gingko Siloba
The Correct Answer is C
St. John's wort is a form of alternative form of medicine used for psychiatric illnesses such as depression and other mood disorders. It increases metabolism of estrogen and progesterone reducing the effectiveness of hormonal contraceptives which can lead to unplanned pregnancies.
A, B, D have no effect of oral contraceptives.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Status asthmaticus is an acute, life threatening exacerbation of asthma causes by bronchospasm on exposure to a trigger. Status asthmaticus can lead to respiratory failure. Short acting beta 2 agonists bind to beta 2 receptors on the airway epithelium causing bronchodilation and promotes air flow. They are used as first line due to their short onset of action.
A. Administering an inhaled glucocorticoid is used for long term control of inflammation in asthma but has no role in acute attacks
B. Identification of triggers is important but not a priority in status asthmaticus.
C. Obtaining a peak flow reading is useful but not a priority.
Correct Answer is A
Explanation
Trough levels should be taken immediately to ensure that the drug levels are at the lowest. Peak levels are taken 30-45mins after the infusion as the drug levels rises rapidly reaching a peak level
B, D- The timings of measurement are closely related to the administration of the drug
C- Peak levels are taken after administration and trough levels after an d not vice versa
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