A nurse is caring for a client who is in labor and has an epidural for pain control. Which of the following clinical manifestations is an adverse effect of epidural anesthesia?

Choice A rationale:
Tamoxifen is not used to treat Non-Hodgkin's lymphoma. Tamoxifen is a selective estrogen
receptor modulator (SERM) and is primarily used in breast cancer treatment. It functions by
binding to estrogen receptors, blocking estrogen's effects, and inhibiting the growth of
hormone-sensitive breast cancer cells.
Choice B rationale:
Tamoxifen is not used to treat endometriosis. Endometriosis is a condition in which tissue
similar to the lining of the uterus grows outside the uterus, and it is typically managed with
hormonal therapies, pain medications, or surgical interventions, but not tamoxifen.
Choice C rationale:

This is the correct choice. Tamoxifen is widely used in the treatment of breast cancer,
especially in cases of estrogen receptor-positive breast cancer. It helps prevent cancer
recurrence and is often prescribed for both early-stage and advanced breast cancer patients.
Choice D rationale:
Tamoxifen is not used to treat polycystic ovary syndrome (PCOS). PCOS is a hormonal
disorder characterized by enlarged ovaries with small cysts, and it is typically managed with
lifestyle changes, hormonal contraceptives, and medications to regulate menstrual cycles and
manage symptoms like hirsutism and acne.

Choice A rationale:

Administering oxytocin to the client via intravenous infusion is not appropriate when the nurse notes an umbilical cord protruding through the cervix. The priority is to relieve pressure on the cord to prevent fetal compromise, and administering oxytocin could worsen the situation.

Choice B rationale:

Applying oxygen at 2 L/min via nasal cannula is not the priority when an umbilical cord prolapse is detected. The focus should be on relieving pressure on the cord and changing the client's position to alleviate the compression.

Choice C rationale:

Preparing for insertion of an intrauterine pressure catheter is not appropriate when there is an umbilical cord prolapse. The immediate concern is the potential compromise of fetal blood flow, and addressing the cord prolapse takes precedence over any other interventions.

Choice D rationale:

Assisting the client into the knee-chest position is the correct action when an umbilical cord prolapse is observed during a vaginal exam. This position helps to alleviate pressure on the cord by moving the presenting part of the fetus off the cord and can prevent further fetal distress until more definitive interventions can be performed.