Clinical Presentation & Protocol
Patient Usually Complains Of
Patient presents with acute onset of substernal chest pain associated with systemic allergic manifestations (e.g., urticaria, pruritus, angioedema, or anaphylaxis). Symptoms began [Time] following exposure to [Trigger/Allergen]. Patient reports associated diaphoresis, nausea, and dyspnea. No prior history of CAD, or symptoms represent an acute exacerbation of known ischemic heart disease triggered by mast cell degranulation.
Clinical Examination Findings
Vitals: Tachycardia, hypotension, or hypertension noted. Skin: Presence of urticarial rash, flushing, or angioedema. Cardiovascular: S1/S2 present, possible S3/S4 gallop, or new murmur. Pulmonary: Wheezing or rales suggestive of pulmonary congestion or bronchospasm. Neurological: Alert and oriented, no focal deficits.
Treatment Protocol
Immediate cessation of suspected allergen. Administer oxygen, epinephrine (if anaphylaxis present), H1/H2 blockers, and corticosteroids. Manage coronary ischemia with nitrates and calcium channel blockers (avoid beta-blockers initially due to potential for unopposed alpha-adrenergic vasoconstriction). Consider aspirin and heparin if ACS is confirmed. Monitor cardiac enzymes and ECG for ST-segment changes.