Pathology

Metabolic alkalosis from vomiting: how to check for appropriate respiratory compensation and why urine chloride is low.

Acute ischemic stroke within 4.5 hours: when to give IV thrombolysis and the blood pressure limit of 185/110.

Pyloric stenosis: why IV fluids and electrolyte correction come before pyloromyotomy in hypochloremic metabolic alkalosis.

Beta-thalassemia minor: microcytic anemia with a high RBC count, normal iron and increased HbA2 on electrophoresis.

Neuroleptic malignant syndrome after haloperidol: lead-pipe rigidity, high CK, and why dantrolene is the drug to add.

Answer and explanation: how pemphigus vulgaris differs from bullous pemphigoid, and why desmoglein antibodies cause flaccid blisters.