Correct Answer: C

Rationale: When the nurse observes the absence of left-sided chest wall expansion upon respiration, it indicates that the endotracheal tube (ET) may have migrated into the right main bronchus, leading to uneven chest expansion. This can result in inadequate ventilation to the left lung, causing respiratory compromise. The other options, such as blockage of the ET tube by the client's tongue, passage of the ET tube into the esophagus, and infection of the vocal cords, do not directly explain the observed chest wall asymmetry and respiratory distress.

Correct Answer: C

Rationale: When caring for a client who had an evacuation of a subdural hematoma, the nurse's priority is to check the oximeter. Monitoring oxygen saturation is crucial to ensure adequate tissue oxygenation, especially after such a procedure. This assessment helps in early detection of hypoxemia, which can be detrimental to the client's recovery. While observing for CSF leaks, assessing for temperature changes, and monitoring for signs of increased intracranial pressure are important, checking the oximeter takes precedence to address immediate oxygenation needs.

Correct Answer: D

Rationale: When a client with a chest tube connected to wall suction complains of chest burning, it may indicate that the tube is irritating or compressing nearby tissues. Repositioning the client can help relieve this irritation by ensuring the tube is not kinked or pulling on the tissues. Increasing suction, stripping the tube, or clamping it are not appropriate actions and could potentially worsen the situation or cause harm.

Correct Answer: A

Rationale: In a client with multiple injuries following a motor vehicle crash, the priority is to assess for any compromised airway or breathing. Evaluating chest expansion helps the nurse determine if the client is having any difficulty breathing, which is essential for immediate intervention to maintain adequate oxygenation. Checking pupillary response, assessing capillary refill, and checking the client's orientation to place and time are important assessments but are of lower priority compared to ensuring the client's airway and breathing are intact.

Correct Answer: A

Rationale: Before initiating percussion, vibration, and postural drainage, the nurse should first auscultate the lung fields to assess the baseline lung sounds and identify areas of congestion or abnormality. This initial assessment helps the nurse to tailor the percussion and drainage techniques effectively. Assessing pulse and respirations, sputum characteristics, and providing instructions to the client for exhalation are important steps in the procedure but should follow the initial auscultation to ensure a comprehensive and individualized care approach.