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Acute bronchospasm requires immediate bronchodilator therapy. Encouraging coughing or fluids is unsafe during respiratory distress. Trendelenburg worsens breathing. The PN acts promptly under Physiological Integrity—Reduction of Risk Potential and Physiological Adaptation.

Disaster triage prioritizes clients who can survive with immediate intervention. Airway obstruction with stridor (Option C) requires urgent management, thus red tag. Option A (fracture) is urgent but not immediately life-threatening (yellow). Option B is expectant (black) due to low survival. Option D is minor (green). This reflects Safe and Effective Care Environment—Safety and Emergency Response.

Therapeutic aPTT is 1.5–2.5× normal. A value 3.5× normal indicates risk of bleeding. The PN holds the dose and notifies the RN/provider. Aspirin worsens bleeding. Increasing infusion is unsafe. This reflects Physiological Integrity—Pharmacological and Risk Reduction.

Therapeutic communication involves exploring resistance to treatment without judgment. Option B encourages dialogue and respects autonomy. Option A is authoritative. Option C assumes an alternative is better without assessment. Option D minimizes the issue. PNs promote Psychosocial Integrity—Therapeutic Communication and Coping by fostering collaboration and patient-centered care.

Warfarin effectiveness depends on consistent vitamin K intake. Sudden changes alter INR levels. Options A and C contradict the need for balance, and D is unsafe. This reflects Health Promotion and Maintenance—Medication Safety Education.