Correct Answer: D

Rationale: The nurse should administer the injection in the abdomen, as this is a common site for subcutaneous heparin administration. Aspirin is contraindicated for clients on heparin due to increased bleeding risk.

Correct Answer: A

Rationale: Cesarean birth doubles the risk for deep-vein thrombosis (DVT) due to immobility and vascular changes associated with surgery. Other risk factors include smoking, obesity, and a history of thromboembolism.

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: A

Rationale: Yellow-tinged skin (jaundice) in a newborn can indicate hyperbilirubinemia. The priority action is to assess the infant's bilirubin levels to determine the severity of the jaundice and the need for further interventions, such as phototherapy.

Correct Answer: A

Rationale: An irregularly shaped, nontender lump is a concerning finding because it may indicate breast cancer. The nurse should report this finding to the provider for further investigation.