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Hypoglycemia presents with confusion, diaphoresis, tachycardia. If patient can swallow and protect airway, oral glucose is indicated. If unable, ALS can give IV dextrose or IM glucagon. Insulin (A) worsens condition. Snacks (C) insufficient. Withholding treatment (D) risks seizures/coma.

Preschoolers (~4 yrs) show magical thinking, imagination, full sentences. Stranger anxiety (A) = infancy. Identity crisis (C) = adolescence. Reading fluently (D) = school-age.

The pulmonic valve prevents backflow from pulmonary artery into RV. Tricuspid (B) = RA/RV. Aortic (C) = LV/aorta. Mitral (D) = LA/LV.

Severe COPD exacerbation with hypoxemia and distress = CPAP if not contraindicated. NC (A) inadequate. Avoiding O₂ (C) is outdated and unsafe. Observation (D) is neglect. AEMTs: support airway, prepare for assisted ventilation if deterioration occurs.

Beck’s triad (hypotension, JVD, muffled heart sounds) = cardiac tamponade. Tension pneumo (A) also has absent breath sounds. PE (C) = sudden dyspnea but no muffled sounds. CHF (D) has rales, edema.