Sepsis!
Hemophagocytic lymphohistiocytosis
Cardiogenic
Acute valvular Regurgitation/VSD
CHF
Dysrhythmia
ACS
Myocardial Contusion
Myocarditis
Drug toxicity (e.g. beta blocker, CCB, or bupropion OD)
Obstructive
Air embolism
Aortic Stenosis
Cardiac Tamponade
PE
Tension pneumothorax
Distributive
Adrenal crisis
Anaphylaxis
Neurogenic shock
Sepsis
Toxicologic
Hypovolemic
Severe dehydration
Hemorrhagic shock (traumatic and non-traumatic)
Acute valvular Regurgitation/VSD
CHF
Dysrhythmia
ACS
Myocardial Contusion
Myocarditis
Drug toxicity (e.g. beta blocker, CCB, or bupropion OD)
Air embolism
Aortic Stenosis
Cardiac Tamponade
PE
Tension pneumothorax
Adrenal crisis
Anaphylaxis
Neurogenic shock
Sepsis
Toxicologic
Severe dehydration
Hemorrhagic shock (traumatic and non-traumatic)
Malignant airway obstruction
Bone metastases and pathologic fractures
Malignant spinal cord compression
Malignant Pericardial Effusion and Tamponade
Superior vena cava syndrome
Hypercalcemia of malignancy
Hyponatremia due to SIADH
Adrenal insufficiency
Tumor lysis syndrome
Carcinoid syndrome
Neutropenic fever
Neutropenic enterocolitis (typhlitis)
Leukostasis and hyperleukocytosis
Hyperviscosity syndrome
Thromboembolism
Neutropenic enterocolitis (typhlitis)
Chemotherapy-induced nausea and vomiting<unk> 
Chemotherapeutic drug extravasation
Differentiation syndrome (retinoic acid syndrome) in APML
Stem cell transplant complications
Catheter-related complications
Tunnel infection
Exit site infection
CVC obstruction (intraluminal or catheter tip thrombosis)
Catheter-related venous thrombosis
Fracture of catheter lumen
Oncologic therapy related adverse events
Tunnel infection
Exit site infection
CVC obstruction (intraluminal or catheter tip thrombosis)
Catheter-related venous thrombosis
Fracture of catheter lumen
Oncologic therapy related adverse events
Cytokine release syndrome
Sepsis!
Immune reconstitution inflammatory syndrome
Hemophagocytic lymphohistiocytosis
Immune reconstitution syndrome
Cardiogenic
Pancoast syndrome
Acute valvular Regurgitation/VSD