A client with a traumatic brain injury demonstrates decorticate posturing.
Which change indicates worsening neurologic status?

Identifying appropriate placement for infectious clients requires understanding transmission-based precautions. Tuberculosis is an airborne pathogen requiring specialized ventilation to prevent the spread of droplet nuclei. Knowledge of negative pressure systems and environmental safety standards is essential for preventing nosocomial transmission to others.

Choice A rationale

Placing a client with active tuberculosis in a semi-private room violates airborne precautions. This increases the risk of horizontal transmission to immunocompromised roommates via microscopic droplet nuclei that remain suspended in the air for several hours.

Choice B rationale

Airborne infection isolation rooms require a minimum of 6 to 12 air exchanges per hour. Exhausting air directly outdoors or through HEPA filters prevents contaminated air from recirculating into common hallways or other patient care areas.

Choice C rationale

Admission to an intensive care unit is reserved for hemodynamically unstable clients or those requiring advanced mechanical ventilation. Tuberculosis alone is not an indication for critical care unless the client exhibits acute respiratory failure or septic shock.

Choice D rationale

While proximity to the nurses' station allows for frequent observation, it does not address the physiological requirement for negative pressure ventilation. Standard medical-surgical rooms lack the engineering controls necessary to contain airborne bacilli within the specific room.

Postoperative care for cardiac surgery requires balancing pain management with respiratory function. Knowledge of pulmonary mechanics and the risks of atelectasis is necessary to identify how analgesia facilitates deep breathing and coughing to prevent pneumonia and improve oxygenation.

Choice A rationale

Opioids can cause vasodilation and subsequent hypotension, but reducing blood pressure is not the therapeutic goal of analgesia in this context. While beneficial for cardiac workload, it is not the most critical recovery factor here.

Choice B rationale

Anxiety reduction is a secondary benefit of pain control that improves patient comfort. However, physiological stabilization and the prevention of respiratory complications take precedence over psychological comfort in the immediate postoperative phase after a bypass.

Choice C rationale

Postoperative pain causes guarded, shallow respirations, increasing the risk of lung collapse. Effective analgesia allows the client to perform deep breathing and incentive spirometry, which are vital for maintaining alveolar expansion and preventing secondary infections.

Choice D rationale

Sleep is necessary for cellular repair and overall recovery. While opioids help a patient rest, the primary physiological priority for a bypass patient is maintaining adequate gas exchange through effective ventilation, which requires active respiratory effort.