A nurse is reviewing the mechanism of action of IUDs with a group of nursing students.
Which of the following statements by a student indicates an understanding of the teaching?
“IUDs immobilize sperm and interfere with their migration from the vagina to the fallopian tubes.”.
“IUDs speed up the transport of the ovum through the fallopian tube.”.
“IUDs inhibit fertilization and cause lysis of the blastocyst.”.
All of the above
The Correct Answer is D
All of the above.
This is because IUDs have multiple mechanisms of action that prevent fertilization and implantation of the ovum. According to the search results, some of these mechanisms are:
- IUDs immobilize sperm and interfere with their migration from the vagina to the fallopian tubes. This is because copper ions released from copper IUDs are toxic for spermatozoa and impair their motility and viability. Hormonal IUDs also thicken the cervical mucus, which blocks sperm from entering the uterus.
- IUDs speed up the transport of the ovum through the fallopian tube. This is because IUDs induce a local inflammatory reaction in the endometrium, which affects the signaling between the uterus and the ovary and alters the tubal motility. This reduces the chances of fertilization by shortening the time window for sperm-egg interaction.
- IUDs inhibit fertilization and cause lysis of the blastocyst. This is because IUDs affect the function or viability of gametes, decreasing the rate of fertilization and lowering the chances of survival of any embryo that may be formed. IUDs also interfere with implantation of the fertilized ovum by creating a hostile environment in the uterine cavity.
Choice A is wrong because it only describes one mechanism of action of IUDs, not all of them.
Choice B is wrong because it only describes another mechanism of action of IUDs, not all of them.
Choice C is wrong because it only describes yet another mechanism of action of IUDs, not all of them.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B.The patient should receive the injection withinsevendays after delivery if breastfeeding, not five.Injectable progestins are a type of hormonal contraception that prevent ovulation and thicken cervical mucus.They are given by a health professional every 12 weeks.
Choice A is wrong because injectable progestins may cause bone mineral loss with long-term use, so the patient should be aware of this risk.
Choice C is wrong because injectable progestins may cause decreased bleeding or amenorrhea in some women, which is not harmful but may be unexpected.
Choice D is wrong because injectable progestins are given every three months, not four times per year.
Correct Answer is D
Explanation
The correct answer is choice D. Refer the client to a provider for evaluation.Lower abdominal pain and fever for 2 days can indicate a serious complication of IUD use, such as pelvic inflammatory disease (PID) or perforation of the uterus.
These conditions require prompt medical attention and possible removal of the IUD.
Choice A is wrong because ibuprofen may not be enough to relieve the pain and may mask the signs of infection.
Choice B is wrong because avoiding sexual intercourse will not treat the underlying cause of the symptoms and may delay seeking medical help.
Choice C is wrong because a urine specimen may not be sufficient to diagnose the problem and may miss other possible causes of lower abdominal pain and fever, such as ectopic pregnancy or appendicitis.
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