What emergency contraception has the best efficacy for prevention of pregnancy?

Correct Answer: C

Rationale: Copper intrauterine devices (IUDs) have the best efficacy for prevention of pregnancy among emergency contraception options. Copper IUDs are over 99% effective when used as emergency contraception, making them more reliable than other methods like Plan B, Yuzpe, or progesterone-only EC. This high efficacy is due to the mechanism of action of copper IUDs, which prevent fertilization and implantation of the fertilized egg. Additionally, once inserted, a copper IUD can continue to provide ongoing contraception for up to 10 years, making it a long-term contraceptive option as well.

Correct Answer: D

Rationale: The correct action for the nurse to take in this situation is to reassess the blood glucose level prior to the next feeding. A single low bedside glucometer reading is not sufficient to make treatment decisions, especially in a newborn who is only 6 hours old and with a mother having type 2 diabetes mellitus. It is important to follow up with another blood glucose measurement before taking further action. This will help ensure that appropriate interventions are taken based on accurate and reliable information.

Correct Answer: C

Rationale: The scenario describes a woman in active labor with frequent, mild to moderate contractions and significant cervical dilation. If cephalopelvic disproportion (CPD) has been ruled out and the progress of labor is slow despite sufficient dilation and descent of the fetus, it may indicate cephalopelvic disproportion, failure to progress, or other complications that could necessitate a cesarean section (c/s). In this case, providing sedation to allow for rest suggests that the medical team is considering the possibility of further intervention, such as a c/s, if the labor does not progress effectively despite sufficient dilation. Therefore, preparing the woman for a c/s would be the anticipated next step in her care.

Correct Answer: B

Rationale: A preterm newborn at 32 weeks of gestation is usually characterized by hip flexion posturing and a popliteal angle of less than 90 degrees. The popliteal angle is the angle at the back of the knee joint when the leg is flexed, and a value of less than 90 degrees is commonly seen in preterm newborns due to their muscle tone immaturity. This finding is consistent with the developmental stage of a preterm infant at 32 weeks gestation.

Correct Answer: D

Rationale: Spotting and cramping in early pregnancy could indicate a threatened miscarriage, requiring immediate evaluation.