Correct Answer: C

Rationale: The client is likely experiencing postpartum blues, which is common and characterized by mood swings, tearfulness, and emotional letdown shortly after delivery.

Correct Answer: D

Rationale: The client should check for the string each month after menstruation to ensure the IUD is in place. Regular checks can help identify any displacement.

Correct Answer: C

Rationale: Hypotension is a key indicator of decreased cardiac output, especially in the context of postpartum hemorrhage, which can lead to significant fluid volume loss and compromise perfusion.

Correct Answer: A

Rationale: Eclampsia is a serious complication of pregnancy characterized by seizures. Hyperreflexia is often a precursor to eclampsia, and assessing for it can help predict and manage the condition before seizures occur.

Correct Answer: B

Rationale: The most common side effect of an epidural is hypotension, which can compromise placental perfusion. Monitoring the client's blood pressure is the priority to ensure maternal and fetal well-being.