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Zorluk: ZorInitial Stabilization and Triage

Emergency medical services arrive at the resuscitation bay with a 29-year-old male who collapsed at a local seafood restaurant. The patient's friends state he began coughing violently, complaining of a 'thick tongue', and broke out in hives shortly after eating a crab dish.

Current vital signs:
Temperature: 36.9 °C (98.4 °F)
Heart rate: 146/min
Blood pressure: 68/38 mm Hg
Respiratory rate: 32/min
Oxygen saturation: 84% on room air

On initial evaluation, the patient is obtunded. There is profound swelling of the periorbital tissues, lips, and oropharynx. Loud, high-pitched inspiratory stridor is present. The extremities are cool and mottled, with a prolonged capillary refill time.

Which of the following interventions should be ordered IMMEDIATELY and SIMULTANEOUSLY to stabilize this patient? (Select 3 options that apply)

  1. Intramuscular administration of epinephrineCevap
  2. Preparation for emergent endotracheal intubationCevap
  3. Rapid intravenous infusion of isotonic crystalloidCevap
  4. D
    Intravenous administration of diphenhydramine and methylprednisolone
  5. E
    Emergent portable radiography of the soft tissues of the neck
  6. F
    Urgent bedside echocardiography to assess cardiac contractility

Cevap

The immediate and simultaneous administration of intramuscular epinephrine, rapid intravenous isotonic crystalloids, and preparation for emergent endotracheal intubation.
The patient is presenting with severe anaphylactic shock complicated by impending complete airway obstruction. In acute anaphylaxis with cardiovascular collapse and severe oropharyngeal edema, initial stabilization requires a simultaneous, multi-pronged approach targeting the airway, breathing, and circulation.

1. Intramuscular epinephrine is the cornerstone of anaphylaxis treatment. Its alpha-1 agonist properties reverse systemic vasodilation and decrease mucosal edema, while its beta-2 agonist properties provide bronchodilation and suppress further mast cell degranulation.

2. Endotracheal intubation is mandatory and must be prepared for immediately. The presence of obtundation, profound angioedema, and loud stridor indicates that the airway will soon be completely lost. Waiting for medications to take effect in a patient with an imminent airway crisis is unsafe.

3. Rapid intravenous crystalloid fluid resuscitation is necessary because massive fluid shifts (capillary leak) and profound vasodilation occur rapidly in anaphylactic shock, leading to severe relative hypovolemia.

Adım Adım Çözüm

1
Identify the primary clinical diagnosis and severity.
The patient has severe anaphylaxis with both profound distributive shock and imminent upper airway obstruction.
Exposure to a known allergen followed by rapid onset of hives, profound hypotension, hypoxia, and severe stridor confirms the diagnosis.
2
Determine the required stabilization interventions for the airway.
Preparation for emergent endotracheal intubation must be initiated immediately.
Obtundation and severe stridor represent an impending loss of the airway, necessitating definitive securement before complete airway closure occurs.
3
Determine the required interventions for the hemodynamic compromise and underlying pathophysiology.
Intramuscular epinephrine and rapid intravenous isotonic fluids must be administered concurrently with airway management.
Epinephrine directly reverses the severe vasodilation and mast cell degranulation. Concurrently, IV fluids are required to restore the massive intravascular volume lost due to acute capillary leak.

Anahtar Kavram

Simultaneous ABC (Airway, Breathing, Circulation) Resuscitation in Severe Anaphylactic Shock
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Konular

Initial Stabilization and Triage

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