Correct Answer: C

Rationale: Vitamin B6 (pyridoxine) is often used to treat nausea and vomiting in pregnancy, including hyperemesis gravidarum, and is considered safe for use in pregnant clients.

Correct Answer: B

Rationale: The safest sleeping position for infants is on their back (supine position). This reduces the risk of sudden infant death syndrome (SIDS), as sleeping in other positions can increase the risk of airway obstruction.

Correct Answer: C

Rationale: Raloxiphine (Evista) is a selective estrogen receptor modulator (SERM) used primarily to prevent and treat osteoporosis in postmenopausal women. It helps to maintain bone density and reduce the risk of fractures by mimicking the effects of estrogen on bone tissue. It is not indicated for the treatment of migraines, hypertension, or heart disease.

Correct Answer: B

Rationale: Moderate tremors of the extremities are a common sign of opioid withdrawal in newborns. Other signs may include irritability, feeding difficulties, and gastrointestinal disturbances.

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.