Signs and symptoms of poor perfusion associated with bradycardia include?

Rationale:
A. Protecting the patient from infection is correct because patients with immunodeficiency have a compromised immune system, making them highly susceptible to infections, which are the leading cause of morbidity and mortality in this population. Priority nursing interventions include strict hand hygiene, use of protective equipment, infection control precautions, and minimizing exposure to pathogens. Preventing infection takes precedence over psychosocial or educational interventions because it addresses an immediate, life-threatening risk.

B. Encouraging discussion about lifestyle changes is important for long-term health promotion but is not the immediate priority. While lifestyle modifications (nutrition, sleep, stress management) can support immune function, they do not address the urgent threat of infection.

C. Identifying factors that decreased the immune function is part of the assessment and overall plan but is secondary to protecting the patient from immediate harm. Recognition of contributing factors helps guide care, but interventions to prevent infection take precedence.

D. Providing emotional support to decrease fear is important for holistic care and patient well-being, but it is not the priority over physical safety. Emotional support should be provided alongside but after implementing measures to prevent infection.

Rationale:
A. This is incorrect because although airway support may eventually be needed, the priority problem suggested by absent breath sounds on one side with hypotension and hypoxia is a tension pneumothorax, which must be treated immediately. Intubation alone does not relieve trapped air and can actually worsen the condition.

B. This is incorrect because a chest x-ray should not delay emergency treatment. In a suspected tension pneumothorax, the diagnosis is clinical, and immediate intervention is required to prevent cardiovascular collapse.

C. This is correct because absent breath sounds on one side, falling oxygen saturation, and hypotension after chest trauma are classic signs of a tension pneumothorax. Emergency treatment is needle thoracostomy to rapidly relieve pressure, followed by chest tube insertion to allow continuous lung re-expansion and prevent recurrence.

D. This is incorrect because while hypotension may be present, it is due to impaired venous return from increased intrathoracic pressure, not fluid loss. Administering fluids does not correct the underlying cause and should not delay definitive treatment.