A patient asks about contraception and using an IUD. The nurse explains the IUD best prevents conception by:
Blocking the opening to the cervix
Increasing the mobility of the uterus
Preventing sperm from reaching the fallopian tubes
keeps sperm from reaching the egg by creating a hostile environment within the uterus
The Correct Answer is D
A. Blocking the opening to the cervix: Intrauterine devices are placed inside the uterine cavity and do not physically block the cervical opening. Cervical barriers such as diaphragms or cervical caps function at the level of the cervix rather than within the uterus. The contraceptive effect of an IUD occurs after sperm enter the reproductive tract.
B. Increasing the mobility of the uterus: Uterine mobility is not altered by the presence of an intrauterine device. IUDs do not affect uterine movement, peristalsis, or positioning. Their action is related to local inflammatory and biochemical effects within the uterine environment.
C. Preventing sperm from reaching the fallopian tubes: IUDs do not create a mechanical barrier that blocks sperm transport through the cervix or uterus. Sperm may still enter the uterine cavity, but their function and survival are impaired. Fertilization is prevented through changes in the uterine and tubal environment.
D. Not keeps sperm from reaching the egg by creating a hostile environment within the uterus: IUDs create a local inflammatory response in the uterus that is toxic to sperm and ova. Copper IUDs release ions that reduce sperm motility and viability, while hormonal IUDs thicken cervical mucus and alter the endometrium. These changes interfere with fertilization and implantation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["150"]
Explanation
Infusion Rate: 50 mL/hr
Time: 3 hours
Calculate the total volume infused
Total Volume = Infusion Rate × Time
= 50 × 3
= 150 mL
Correct Answer is B
Explanation
A. Pulmonary stenosis: Pulmonary stenosis typically produces a systolic ejection murmur heard best at the upper left sternal border. The murmur is not continuous and does not have the classic machinery-like quality associated with PDA.
B. Patent ductus arteriosus: Patent ductus arteriosus (PDA) allows blood to flow from the aorta to the pulmonary artery, creating a continuous “machinery-like” murmur that is heard throughout systole and diastole. This distinctive murmur is most prominent at the left upper sternal border and is characteristic of PDA, particularly in premature infants.
C. Ventricular septal defect: A ventricular septal defect usually produces a harsh, holosystolic murmur at the lower left sternal border. The murmur is confined to systole and lacks the continuous, machinery-like quality of PDA.
D. Coarctation of the aorta: Coarctation of the aorta often presents with systolic murmurs, diminished femoral pulses, and differential blood pressures between upper and lower extremities. The murmur is not continuous and does not produce the machinery-like sound seen in PDA.
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