Category Differential diagnosis
CCC Critical Care Compendium 680

Anaphylaxis DDx

Anaphylaxis is a severe, life-threatening, generalised or systemic hypersensitivity reaction. It is characterised by rapidly developing life-threatening airway (pharyngeal or laryngeal edema) and/or breathing (bronchospasm and tachypnea) and/or circulation (hypotension and tachycardia) problems usually associated with skin and mucosal changes.
CCC Critical Care Compendium 680

Lower Gastrointestinal Haemorrhage DDx

Lower gastrointestinal haemorrhage is classically bleeding from below the ligament of Trietz (the suspensory muscle of duodenum that connects to the diaphragm), and is characterised by hematochezia (blood passed in or with the stools) or rectorrhagia (blood leaking from the rectum). Massive upper GI bleeding may also present with hematochezia.
CCC Critical Care Compendium 680

Liver palpation abnormalities

Abnormalities of the liver detected on palpation include: firm and irregular liver, tenderness, and pulsatility. See also hepatomegaly and hepatosplenomegaly. Differential diagnosis
CCC Critical Care Compendium 680

Rectal mass

Rectal masses may be intra-luminal, mural or palpable through the rectum but arising from outside of it. Differential diagnosis.
CCC Critical Care Compendium 680

Central Pontine Myelinolysis

Central pontine myelinolysis is a demyelinating disorder that affects the brainstem white matter, mostly central pons and occasionally cerebral hemispheres (then called ‘extrapontine myelinolysis’)
CCC Critical Care Compendium 680

Dementia DDx

Dementia is a syndrome of acquired intellectual impairment characterized by persistent deficits in at least three of the following areas of mental activity: memory; language; visuospatial skills; personality/emotional state; cognition (abstraction, mathematics, and judgment)