Correct Answer: C

Rationale: The priority action in this scenario is to check the infant's oxygen saturation rate. This will provide crucial information on the infant's oxygen levels and the need for immediate oxygen therapy. Assessing oxygen saturation is essential in determining the severity of hypoxia and guiding further interventions to ensure adequate oxygenation.

Correct Answer: D

Rationale: Fluid volume excess is a priority concern in this client, as heart damage from rheumatic fever can impair the heart's ability to manage increased blood volume postpartum, leading to potential heart failure. Monitoring and managing fluid volume status are crucial to prevent complications in this high-risk client.

Correct Answer: A

Rationale: The correct answer is A. Home pregnancy tests detect hCG, a hormone produced during pregnancy, and are most accurate after the first missed period when hCG levels are higher. Testing too early may result in a false negative. Waiting until after the first missed period increases the reliability of the test results.

Correct Answer: A

Rationale: If the client experiences a return to red bleeding after transitioning to pink and white, it may indicate possible complications like hemorrhage or retained placental fragments. Instructing the client to reduce activity level and promptly notify the healthcare provider is crucial for timely evaluation and management of these potentially serious postpartum complications.

Correct Answer: A

Rationale: Assessing maternal blood pressure is crucial before administering epidural anesthesia because it can cause hypotension, affecting both the mother and the fetus. Hypotension can lead to decreased placental perfusion, potentially compromising the fetal oxygen supply. Monitoring and maintaining maternal blood pressure within a safe range are essential to ensure the well-being of both the mother and the fetus during the administration of epidural anesthesia.