A nurse is teaching a client who is prescribed COCs about the mechanism of action of these pills.
The nurse should explain that COCs prevent pregnancy by?
Inhibiting the production of follicle-stimulating hormone (FSH) and luteinizing hormone (LH)
Increasing the production of prostaglandins that cause uterine contractions
Decreasing the permeability of the fallopian tubes to sperm and egg
Suppressing ovulation, thickening cervical mucus and altering the uterine lining
The Correct Answer is A
The correct answer is choice A. COCs prevent pregnancy by inhibiting the production of follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which are responsible for ovulation.
By suppressing ovulation, COCs prevent the release of a mature egg that can be fertilized by sperm.
Choice B is wrong because COCs do not increase the production of prostaglandins that cause uterine contractions.
Prostaglandins are involved in inflammation and pain, and are not directly related to contraception.
Choice C is wrong because COCs do not decrease the permeability of the fallopian tubes to sperm and egg.
The fallopian tubes are the site of fertilization, and COCs do not affect their function.
Choice D is partially correct but not the best answer. COCs do suppress ovulation, but they also have other mechanisms of action, such as thickening cervical mucus and altering the uterine lining.
These effects make it harder for sperm to reach the egg and for a fertilized egg to implant in the uterus.
Therefore, choice D does not capture the full mechanism of action of COCs.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A.COCs can reduce the risk of endometrial, ovarian and colon cancer.This is because COCs suppress ovulation and reduce inflammation in the genital tract, which may lower the exposure to carcinogens and mutagens.
Choice B is wrong because COCs do not increase bone density or prevent osteoporosis.In fact, some studies have suggested that COCs may have a negative effect on bone mineral density.
Choice C is wrong because COCs do not enhance fertility or improve menstrual regularity.
COCs prevent pregnancy by inhibiting ovulation, which means that they temporarily suppress fertility.COCs may also cause irregular bleeding or amenorrhea in some women.
Choice D is wrong because COCs do not lower blood pressure or cholesterol levels.On the contrary, COCs may increase the risk of hypertension and dyslipidemia in some women, especially those who smoke, are obese, or have a family history of cardiovascular disease.
Correct Answer is D
Explanation
The correct answer is choice D.“You should wait until your baby is 6 weeks old before starting the injections.” This is because medroxyprogesterone may pass into breast milk and cause side effects in a child who is breastfed.The product labeling states that it should be started no sooner than 6 weeks postpartum, based on data submitted for product approval.
The World Health Organization also recommends that injectable depot medroxyprogesterone acetate should not be used before 6 weeks postpartum.
Choice A is wrong because starting the injections immediately after delivery could interfere with the exclusivity or duration of lactation, and could affect the newborn infant adversely because of slower metabolism of the drug than older infants.
Choice B is wrong because waiting until the baby is 6 months old is unnecessary and could expose the mother to a higher risk of unintended pregnancy.
Choice C is wrong because medroxyprogesterone has not been known to cause any decrease in milk supply while using the injections
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