Correct Answer: A

Rationale: Chest tube placement depends on the condition. The 2nd or 3rd intercostal space, midclavicular line, is used for pneumothorax (choice
A), as air rises to the lung apex, requiring drainage to re-expand the lung. Hemothorax (choice
B) or pyothorax (choice
C) involves blood or pus, typically drained from the 5th-6th intercostal space (triangle of safety) where fluid collects. Emphysema (choice D, likely a typo for empyema) isn't treated with apical tubes. A is correct, as the location matches pneumothorax management. Nurses monitor drainage, ensure tube patency, and assess breathing, critical for recovery.

Correct Answer: B

Rationale: Decision-making is informed clinical choices (
B), per nursing e.g., based on Mr. Gary's data. Not random (
A), not order (
C), not one-time (
D) reasoned process. B best defines its clinical role, making it correct.

Correct Answer: D

Rationale: Checking the continuous passive motion (CPM) device is key post-right total knee replacement, ensuring it maintains joint mobility and prevents stiffness flat legs, pillows under knees, or prone positioning counter recovery goals. Nurses monitor CPM settings, promoting circulation and range of motion, critical for rehabilitation success.

Correct Answer: C

Rationale: Communication is essential (
A), verbal/nonverbal (
B), affects outcomes (
D) 'only verbal' (
C) isn't true, includes gestures, per standards. C's limit fails, making it untrue.

Correct Answer: C

Rationale: Muscle weakness is a hallmark of hypokalemia due to potassium's role in muscle function.