A patient presents with watery diarrhea, abdominal cramps, and nausea after consuming contaminated water from a stream during a camping trip. Laboratory tests reveal oocysts in the stool sample. Which of the following parasites is most likely responsible for this infection?

Correct Answer: C

Rationale: The patient's symptoms of watery diarrhea, abdominal cramps, and nausea after consuming contaminated water from a stream during a camping trip suggest an infection caused by Cryptosporidium parvum. Cryptosporidium is a protozoan parasite that is commonly transmitted through contaminated water sources. Laboratory tests detecting oocysts in the stool sample are characteristic of Cryptosporidium infection.

Correct Answer: B

Rationale: Pelvic inflammatory disease (PID) is the most likely cause of the symptoms described in the pregnant woman. PID is an infection of the female reproductive organs, typically caused by sexually transmitted bacteria like Chlamydia or Gonorrhea. The classic presentation includes lower abdominal pain, fever, vaginal discharge, cervical motion tenderness, and bilateral adnexal tenderness on examination. This condition can lead to serious complications if not promptly treated, including infertility, ectopic pregnancy, and chronic pelvic pain. Therefore, it is crucial to diagnose and manage PID promptly, especially in pregnant women, to prevent adverse outcomes.

Correct Answer: A

Rationale: The appropriate nursing intervention in this case is to encourage the mother to walk to facilitate labor progression. The patient is in early labor with contractions every 5 minutes, lasting 45 seconds each, and her cervix is dilated to 3 cm. Encouraging the mother to walk can help gravity assist the descent of the baby and promote cervical dilation. Walking can also help alleviate some discomfort and encourage labor progression. It is important to promote natural, non-invasive methods to support the progress of labor before considering medical interventions such as oxytocin or cesarean section. Relaxation techniques can also be beneficial in managing pain during labor.

Correct Answer: B

Rationale: The most appropriate nursing intervention to facilitate fetal rotation in a woman experiencing persistent occiput posterior position is to assist the mother into a hands-and-knees position. This position can help encourage the baby to rotate into the optimal occiput anterior position for delivery. By being on her hands and knees, gravity can assist in aiding the rotation of the baby. This position can also help relieve pressure on the mother's back and potentially reduce discomfort during labor. Additionally, hands-and-knees position can help open up the pelvis and create more space for the baby to turn. It is a non-invasive and generally well-tolerated intervention to promote fetal rotation in labor.

Correct Answer: C

Rationale: An amniotic fluid embolism is a rare and life-threatening complication during labor and delivery. It occurs when amniotic fluid or fetal cells enter the maternal circulation, triggering a rapid immune response that can lead to cardiovascular collapse and respiratory failure. The priority nursing intervention for a woman in active labor diagnosed with an amniotic fluid embolism is to initiate cardiopulmonary resuscitation (CPR) to support her vital functions and circulation. Providing immediate CPR can help sustain her until further medical interventions can be implemented. Administering oxygen and preparing for a cesarean section may be necessary but should occur after CPR is initiated to stabilize the woman's condition. Inserting an indwelling urinary catheter is not the priority in this emergency situation, as maintaining adequate cardiac and respiratory function takes precedence.