Correct Answer: D

Rationale: Ensuring the water seal chamber is filled to the prescribed level is essential for the chest tube's effective functioning. This maintains the integrity of the system, prevents air from entering the pleural space, and facilitates proper drainage. Stripping the drainage tubing, keeping the drainage system below the chest level, or clamping the chest tube during ambulation are not recommended practices and can lead to complications.

Correct Answer: D

Rationale: Ensuring the water seal chamber is filled to the prescribed level is essential for the chest tube's effective functioning. This maintains the integrity of the system, prevents air from entering the pleural space, and facilitates proper drainage. Stripping the drainage tubing, keeping the drainage system below the chest level, or clamping the chest tube during ambulation are not recommended practices and can lead to complications.

Correct Answer: B

Rationale: Administering the injection slowly is the recommended technique to reduce discomfort associated with IM injections. This approach allows the medication to disperse more gradually into the muscle, minimizing the sensation of pressure or pain during administration. Administering the injection slowly can also help prevent tissue damage and reduce the likelihood of injection site reactions.

Correct Answer: D

Rationale: Having a second nurse witness the disposal of any unused portion of a controlled substance is a legal requirement to ensure proper disposal, prevent diversion, and maintain accountability. This practice helps in reducing the risk of misuse or unauthorized access to controlled substances, enhancing patient safety, and complying with legal regulations and standards.

Correct Answer: B

Rationale: Keeping the bed in the lowest position is crucial for ensuring the safety of the client during a seizure. Lowering the bed reduces the risk of injury if the client falls during a seizure episode. It is important not to restrain the client during a seizure as it can lead to further injury. Placing a padded tongue depressor at the bedside is not appropriate and can pose a risk of injury if used incorrectly. Keeping the lights dim in the client's room is not directly related to safety during a seizure and is not a standard precaution.