5.5 Critical Resuscitation: Sepsis, DKA, Anaphylaxis & Shock

🎯 Key NCLEX-RN® Clinical Takeaways

• Sepsis Hour-1 Bundle: Measure lactate, draw blood cultures BEFORE starting antibiotics, 30 mL/kg crystalloid bolus for hypotension.
• In acute DKA, aggressive fluid resuscitation with 0.9% Normal Saline takes priority over insulin to restore intravascular perfusion.
• Anaphylactic shock: Intramuscular Epinephrine (1:1,000) into the anterolateral thigh is the first-line and only life-saving drug.
• Tension pneumothorax: Tracheal deviation away, absent breath sounds, hypotension -> Immediate needle decompression (2nd ICS MCL).
• Cushing's triad (systolic HTN with widening pulse pressure, bradycardia, irregular respirations) indicates life-threatening ICP; elevate HOB 30 degrees, head midline.

Resuscitation in acute physiological decompensation requires prioritization of intravascular volume and cellular oxygenation. Septic shock resuscitation follows the Hour-1 bundle to deliver rapid broad-spectrum antimicrobials without compromising blood culture accuracy.

In DKA, profound osmotic diuresis creates life-threatening hypovolemic shock; isotonic fluid replacement precedes insulin therapy.

Tension pneumothorax is an immediate clinical diagnosis where trapped air under tension occludes venous return; immediate needle decompression saves life before imaging.

Elevated intracranial pressure compromises cerebral perfusion pressure. Cushing's triad signals impending herniation through the foramen magnum, requiring 30-degree elevation, midline positioning, and hyperosmolar therapy.

⚠️ Common Pearson VUE / NCLEX Traps

• Administering broad-spectrum antibiotics before drawing blood cultures in septic shock, sterilizing diagnostic cultures.
• Administering antihistamines or steroids as first-line treatment in anaphylaxis while withholding life-saving epinephrine.