Correct Answer: A

Rationale: Late decelerations are indicative of uteroplacental insufficiency, which can be exacerbated by oxytocin administration, potentially compromising fetal well-being. Therefore, detecting late decelerations should prompt immediate reporting to the provider to prevent harm to the fetus. Choices B, C, and D are not contraindications for initiating oxytocin infusion. Moderate variability of the FHR is a reassuring sign of fetal well-being, cessation of uterine dilation may indicate a pause in labor progress but does not contraindicate oxytocin, and prolonged active phase of labor may necessitate oxytocin administration to augment contractions and progress labor.

Correct Answer: C

Rationale: Unilateral breast pain can be a sign of mastitis, an infection of the breast tissue, which requires prompt evaluation and treatment. The nurse should instruct the client to report this clinical manifestation to the provider to prevent complications and promote recovery.

Correct Answer: D

Rationale: During pregnancy, decreased urine output can be indicative of decreased renal perfusion and impaired fetal well-being. It can also be a sign of preeclampsia when associated with symptoms like increased blood pressure, proteinuria, and decreased fetal activity. Therefore, the nurse should promptly report this finding to the healthcare provider for further evaluation and management. Leukorrhea is a common finding in pregnancy and not typically concerning. Supine hypotension and periodic numbness of the fingers can be managed by changing positions or adjusting posture and are not as urgent as decreased urine output in this context.

Correct Answer: C

Rationale: A weight gain of 2.2 kg (4.8 lb) in a week is above the expected reference range for a client at 38 weeks of gestation and could indicate complications such as preeclampsia or gestational hypertension. Rapid weight gain at this stage requires immediate attention and should be reported to the provider for further evaluation and management. Choices A, B, and D are not the priority findings to report to the provider at this stage of gestation. Blood pressure of 136/88 mm Hg is within normal limits in pregnancy, insomnia is common in the third trimester, and Braxton-Hicks contractions are expected in the third trimester as the body prepares for labor.

Correct Answer: C

Rationale: The correct statement to include in the teaching for a client scheduled for a 1-hour glucose tolerance test at 24 weeks of gestation is that a blood glucose level of 130 to 140 mg/dL is considered a positive screening result. This range indicates a potential issue with glucose metabolism and would prompt the need for a follow-up 3-hour glucose tolerance test to confirm the diagnosis of gestational diabetes mellitus. Choices A, B, and D are incorrect. In a 1-hour glucose tolerance test, the glucose solution is typically consumed within a specific timeframe before the test, not necessarily 1 hour prior. There is usually no specific requirement to limit carbohydrate intake for 24 hours prior to the test. Fasting for 8 hours prior to the test is more common for a fasting glucose test, not a 1-hour glucose tolerance test.