A 12-year-old’s upper right central incisor is avulsed and stored in tap water for 20 minutes. The socket is intact. Which step in the replantation protocol is MOST important to PDL cell viability?

A 5-year-old with severe pneumonia is on A/C-VC (VT 6 mL/kg, PEEP 6, FiO2 0.70, RR 22). SpO2 86%. Plateau pressure is 26 cmH2O. Which is the MOST physiologically appropriate first maneuver to improve oxygenation?

A 13-year-old with protracted vomiting (5 days) has ABG: pH 7.58, PaCO2 52, HCO3 48, Na 138, Cl 82, K 2.9. Which is the MOST accurate acid-base interpretation?

Type II respiratory failure is defined by which primary physiologic characteristic?

A 13-year-old has a Grade II hyphema (35-45% of anterior chamber) from blunt trauma. IOP is 28 mmHg. Which management is MOST appropriate for the elevated IOP?

An 11-year-old (weight 40 kg, IBW 36 kg) with ARDS is initiated on ventilation with VT 8 mL/kg of actual body weight (320 mL). Plateau pressure is 34 cmH2O. Which is the MOST appropriate response?

Which SBT failure criterion, if present ALONE, mandates immediate return to full ventilatory support?

An intubated 8-year-old suddenly develops tachycardia (HR 168), hypotension (BP 74/40), SpO2 drop from 97% to 80%, and rising PIP. Which is the MOST appropriate FIRST action?

PSV differs fundamentally from A/C-Pressure Control in which way?

Rene Descartes is BEST known for which idea?