Browse categories and answer follow-up questions to refine your symptom profile.
Immediate priorities
Airway and breathing
Respiratory muscle weakness with rising PaCO2
Early intubation triggers
Forced vital capacity less than 20 mL/kg
Maximal inspiratory pressure less negative than -30 cmH2O
Negative inspiratory force less negative than -20 cmH2O
Maximal expiratory pressure less than 40 cmH2O
PaCO2 greater than 45 mmHg
Bulbar weakness with secretion burden
Oxygenation pitfalls
Normal SpO2 despite impending ventilatory failure
Hypercapnia preceding hypoxemia on arterial blood gas
Circulation
Shock etiologies
Sepsis with triggering infection
Arrhythmia from comorbidity or medication effect
Hemodynamic monitoring
Continuous telemetry
Frequent blood pressure trend
Neuromuscular rescue pathway
Trigger identification and reversal
Infection evaluation and early treatment
Medication review for MG worsening agents
Rapid immunomodulation selection
Plasma exchange when available and not contraindicated
IV immunoglobulin when plasma exchange not feasible
Team activation and location
ICU admission default for true crisis
Continuous ventilatory monitoring capability
Rapid intubation readiness
Early neurology consult
Confirm MG flare versus mimics
Align rescue therapy choice and timing
Airway strategy
Intubation and ventilation
Intubation planning considerations
Bulbar dysfunction and aspiration risk
Anticipated difficult secretion management
Neuromuscular blocking agents precautions
Increased sensitivity to nondepolarizing agents
Relative resistance to succinylcholine
Post intubation goals
Lung protective ventilation if no primary lung disease
Aggressive secretion clearance plan
Key concepts
Definition and scope
Myasthenic crisis
Respiratory failure requiring ventilatory support
Impending crisis with rapidly worsening respiratory or bulbar weakness
Common precipitants
Respiratory infection
Aspiration pneumonia
Medication induced worsening
Postoperative stress
Pregnancy and postpartum immune shifts
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.