Correct Answer: D

Rationale: The correct answer is D. Dyspnea in a client with COPD receiving oxygen should be reported as it may indicate worsening respiratory status. Oxygen saturation of 95% is within the expected range for a client receiving oxygen therapy and does not require immediate reporting. A productive cough with clear sputum is a common symptom in clients with COPD and does not necessarily warrant urgent reporting. A respiratory rate of 22/min is also within normal limits and does not raise immediate concerns in this scenario.

Correct Answer: D

Rationale: The correct answer is D because taking metformin with food helps reduce gastrointestinal discomfort, a common side effect of the medication. Choice A is incorrect as metformin is usually taken with meals to minimize side effects. Choice B is incorrect because metformin does not typically cause urine discoloration. Choice C is incorrect as metformin is associated with weight loss or weight neutrality rather than weight gain.

Correct Answer: B

Rationale: The correct statement the nurse should make is that dehydration can increase the risk of preterm labor. Dehydration reduces amniotic fluid and uterine blood flow, potentially leading to preterm contractions. Choice A is incorrect because dehydration is not treated with calcium supplements but rather with adequate fluid intake. Choice C is incorrect as dehydration does not directly increase gastroesophageal reflux. Choice D is incorrect as dehydration is not caused by decreased hemoglobin and hematocrit levels but rather by insufficient fluid intake or excessive fluid loss.

Correct Answer: B

Rationale: Jitteriness is a common symptom of neonatal hypoglycemia. When a newborn has a low blood glucose level, they may exhibit signs of central nervous system dysfunction, such as jitteriness. Loose stools (Choice A) are not typically associated with neonatal hypoglycemia. Hypertonia (Choice C) refers to increased muscle tone, which is not a common manifestation of hypoglycemia in newborns. Abdominal distention (Choice D) is more often associated with gastrointestinal issues rather than hypoglycemia.

Correct Answer: B

Rationale: Thrombophlebitis is a condition characterized by inflammation of a vein, which increases the risk of blood clots. The use of oral contraceptives further elevates the risk of clot formation, making them contraindicated in individuals with thrombophlebitis. Hyperthyroidism (Choice A), diverticulosis (Choice C), and hypocalcemia (Choice D) are not contraindications to the use of oral contraceptives.