A nurse is teaching a client who is at 15 weeks of gestation and is to undergo an amniocentesis. The nurse should explain that the purpose of this test is to identify which of the following conditions? (Select all that apply.)

Explanation:

A. Prepare the abdominal and perineal areas: While preparing the abdominal and perineal areas may be necessary for potential interventions, such as a cesarean section or vaginal examination, it is not the priority at this moment.

B. Witness the signature for informed consent for surgery: Obtaining informed consent for surgery is important, especially if surgical intervention is anticipated. However, the priority in this case is to stabilize the client's condition and address the potential causes of painless, bright red vaginal bleeding.

C. Insert an indwelling urinary catheter: Inserting an indwelling urinary catheter may be beneficial for monitoring urinary output and assessing fluid status. However, it is not the immediate priority compared to addressing the client's vital signs and managing potential causes of bleeding.

D. Initiate IV access: This is the correct answer. Given the client's large amount of painless, bright red vaginal bleeding, the priority is to establish IV access to administer fluids and possibly blood products if there is evidence of hypovolemia or hemorrhage. IV access will also allow for the administration of medications or other interventions as needed.

Explanation:

A. Unilateral, cramp-like abdominal pain.

This is a typical manifestation of an ectopic pregnancy. The pain is often localized to one side of the lower abdomen and may be cramp-like or sharp. It occurs due to the stretching and irritation of surrounding structures, such as the fallopian tube, as the pregnancy grows outside of the uterus.

B. Severe nausea and vomiting.

While nausea and vomiting can occur during pregnancy, especially in the first trimester (morning sickness), they are not specific manifestations of an ectopic pregnancy. Severe nausea and vomiting are more commonly associated with conditions like hyperemesis gravidarum, but they are not indicative of an ectopic pregnancy.

C. Large amount of vaginal bleeding.

Vaginal bleeding can occur in ectopic pregnancies, but it is typically not a large amount compared to the bleeding seen in a miscarriage or other complications. Ectopic pregnancy bleeding is often lighter and may be accompanied by spotting or brownish discharge. However, significant vaginal bleeding is not a consistent manifestation of an ectopic pregnancy.

D. Uterine enlargement greater than expected for gestational age.

In an ectopic pregnancy, the fertilized egg implants outside of the uterus, so there is no uterine enlargement as expected in a normal intrauterine pregnancy. Therefore, uterine enlargement greater than expected for gestational age would not be consistent with an ectopic pregnancy.