PaO2/FiO2 ratio for severe ARDS
≤100 (accept <100)
Test to detect antibody and complement on the erythrocyte surface
Direct antiglobulin (Coombs) test
Sinoatrial node modulator approved by the FDA for the treatment of heart failure with reduced ejection fraction
Ivabradine (accept Procoralan or Corlanor)
The most common clinical feature of Behçet’s syndrome
Recurrent mucocutaneous ulcers (accept mucocutaneous ulcers, oral ulcers, genital ulcers)
Diagnosis suggested when lateral inward digital pressure over lesion produces central dimpling
Dermatofibroma (accept fibrous histiocytoma)
Antibiotic class to prevent exacerbations of bronchiectasis
Macrolide
Condition characterized by an elevated blast cell count and symptoms of decreased tissue perfusion
Leukostasis
Most common objective finding of Lyme carditis
Atrioventricular conduction block (accept AV nodal block or AV block)
Condition characterized by anterior displacement of a vertebra relative to the one beneath it
Spondylolisthesis
Rash typically associated with end-stage renal disease and high PTH levels
Calciphylaxis
Most common CT finding associated with pulmonary adenocarcinoma-in-situ
Ground-glass opacification (accept ground-glass nodule or subsolid nodule)
Condition caused by acquired inhibition of hepatic uroporphyrinogen decarboxylase activity
Porphyria cutanea tarda
Eponym for syndrome of chest pain, diffuse ST-segment elevation, PR depression and pericardial friction rub 2 weeks after MI
Dressler syndrome
Most common underlying cause of hypersensitivity vasculitis
Drug reaction or infection (either)
Metal whose ingestion causes blue skin discoloration
silver
Interstitial lung disease associated with working in the yarn and fabric industries
Byssinosis
Target hemoglobin level for patients with sickle cell disease undergoing moderate-risk surgery
10 g/dL
Condition suggested by the extra deflection at the end of the QRS complex shown here

Hypothermia
Maternal antibodies associated with neonatal lupus
Anti-SSA (accept SSA, Ro, anti-Sjögren's-syndrome-related antigen A autoantibodies, anti-Ro)
First-line systemic treatment for chronic cutaneous lupus erythematosus
Hydroxychloroquine
Antihistamine used in the treatment of serotonin syndrome
Cyproheptadine (accept Periactin)
Lipid abnormality used as diagnostic criteria for hemophagocytic lymphohistiocytosis
Hypertriglyceridemia
Most common finding in clinically-evident cardiac sarcoidosis
Complete Heart Block
Monoclonal antibody FDA-approved to treat giant cell arteritis
Tocilizumab (accept Actemra or TCZ)
Diagnosis for this condition
Acne keloidalis nuchae