A nurse is assisting with the plan of care for a client who is in the third trimester of pregnancy and has ankle edema. Which of the following interventions should the nurse include in the client's plan of care?

The correct answer is D.

Chadwick's sign. Chadwick's sign is a bluish discoloration of the cervix, vagina, and vulva caused by increased blood flow to these areas during pregnancy. It usually appears around 6 to 8 weeks of gestation and persists until delivery. It is one of the presumptive signs of pregnancy, which are subjective changes that suggest pregnancy but are not conclusive. Ballottement is a technique of palpating the uterus to detect fetal movement when a finger is inserted into the vagina and tapped against the cervix. It can be performed between 16 and 28 weeks of gestation and is also a presumptive sign of pregnancy.

Chloasma is a condition characterized by brown patches on the face that may occur during pregnancy due to hormonal changes. It is also known as melasma or mask of pregnancy and usually fades after delivery. Hegar's sign is a softening of the lower uterine segment that can be felt during bimanual examination around 6 weeks of gestation. It is one of the probable signs of pregnancy, which are objective changes that strongly indicate pregnancy but are not diagnostic.

The correct answer is A. The nurse should apply pressure to the lacrimal punctum, which is located at the inner corner of each eye, after administering eye drops to prevent systemic absorption of the medication and reduce side effects. The nurse should position the child supine or sitting with their head tilted back slightly before administering eye drops, as this allows for easier instillation and prevents spillage of medication. The nurse does not need to flush the eye with normal saline solution before administering eye drops, unless there is debris or discharge in the eye that needs to be removed. The nurse should wipe from the inner to the outer canthus after administering eye drops, as this prevents contamination of the eye and reduces the risk of infection.