Correct Answer: C

Rationale: Choosing electronic documentation during an interview may hinder the nurse's ability to observe the client's nonverbal cues. Nonverbal communication, such as body language and facial expressions, plays a crucial role in understanding a client's feelings and needs. Focusing on entering data electronically may lead to missing important nonverbal cues that could provide valuable insights into the client's condition or emotions.

Correct Answer: D

Rationale: Purulent drainage indicates infection at the insertion site, which requires immediate attention to prevent complications.

Correct Answer: C

Rationale: An elevated AST level following chest pain and shortness of breath is suggestive of myocardial infarction. AST is released from damaged heart muscle cells during a heart attack, indicating cardiac involvement. This enzyme is not specific to liver disease, gallbladder disease, or skeletal muscle injury in this clinical context.

Correct Answer: B

Rationale: Theophylline should be administered on a regular around-the-clock schedule to provide the best bronchodilating effect and reduce the potential for adverse effects. The correct dosing schedule of 8 a.m., 4 p.m., and midnight ensures that the client receives consistent dosing throughout the day. Other options do not provide the necessary around-the-clock coverage. It's important to note that food may affect the absorption of the medication, which is why the dosing schedule should not be tied to meal times.

Correct Answer: D

Rationale: A temperature of 100.4°F (38°C) (D) is the most concerning finding for a client receiving total parenteral nutrition (TPN) as it may indicate an infection, which poses a significant risk. Monitoring blood glucose level (A), blood pressure (B), and serum albumin (C) are also important, but an elevated temperature suggests a potential serious complication that requires immediate attention.