Correct Answer: D

Rationale: Before a thoracentesis procedure, it is crucial to ensure that the client has given informed consent. This process involves explaining the procedure, its risks, benefits, and alternatives to the client, and obtaining their signature on the consent form. Verifying informed consent is a vital legal and ethical step to protect the client's autonomy and ensure they have made an informed decision about the procedure.

Correct Answer: D

Rationale: After a total hip replacement, clients should avoid bending at the waist past 90 degrees for at least 6 weeks to prevent dislocation of the hip prosthesis. Bending down to tie shoes involves significant hip flexion and should be avoided during the initial postoperative period to ensure proper healing and reduce the risk of complications.

Correct Answer: B

Rationale: Absent breath sounds may indicate a pneumothorax, a serious complication post lung biopsy. This condition requires immediate attention to prevent respiratory distress.

Correct Answer: A

Rationale: Allowing the family to remain at the bedside can help calm the client with familiar voices and presence, potentially reducing restlessness and agitation. Introducing a fan may not be the priority as it can spread germs through air movement. Keeping the television on all the time may not promote rest and recovery. Speaking loudly is not advisable as it may further agitate the client. Therefore, the initial action of allowing family members to stay is most likely to provide comfort and reassurance to the client.

Correct Answer: C

Rationale: After an open lung biopsy, a potential complication is pneumothorax, often indicated by reduced or absent breath sounds. The nurse should promptly notify the physician to address this serious issue and ensure timely intervention.