Correct Answer: B

Rationale: Placing the client in a high Fowler's position helps improve breathing and oxygenation in clients with severe dyspnea.

Correct Answer: D

Rationale: The correct answer is D. During pregnancy, it is crucial to avoid taking any medication without consulting a healthcare provider to prevent harm to the developing fetus. Choices A, B, and C are important aspects of prenatal care but do not specifically address the potential risks associated with taking medications during pregnancy.

Correct Answer: C

Rationale: In this situation, the nurse should first instruct the client to perform pursed-lip breathing. Pursed-lip breathing helps improve oxygenation and decrease the work of breathing in clients with COPD. Administering a bronchodilator or increasing the oxygen flow rate may be necessary interventions but addressing the breathing technique through pursed-lip breathing is the initial action to optimize oxygenation. Notifying the healthcare provider immediately is not the first action indicated in this scenario; the nurse should intervene promptly to assist the client in improving breathing before escalating the situation.

Correct Answer: B

Rationale: Intermittent bubbling in the suction control chamber is the correct observation indicating effective functioning of the chest tube. This bubbling signifies that the suction system is working correctly and maintaining the desired negative pressure in the pleural space. Continuous bubbling in the water-seal chamber suggests an air leak, which is not a normal finding. No fluctuation (tidaling) in the water-seal chamber may indicate a blockage or lack of communication between the pleural space and the water-seal, which is not ideal. Drainage of clear, pale yellow fluid from the chest tube is a normal finding, but it does not specifically indicate the effectiveness of the chest tube function.

Correct Answer: C

Rationale: A serum creatinine level of 1.0 mg/dL is within the normal range, but weight gain of 2 pounds in 24 hours indicates fluid retention and requires immediate intervention.