2799 results
Low O2 saturation that does not respond to supplemental O2
- Key diagnostic feature (sat < 85%
FiO2 Severity of symptoms ... closely to MetHb level ... for any MetHb level ... Concentrations #Signs ... #Symptoms
Hypomagnesemia (Serum level < 1.7 mg/dL)
Neuromuscular manifestations 
 • Tremor, tetany, seizures 
 • Weakness
Hypomagnesemia (Serum level ... Hypomagnesemia #Signs ... #Symptoms #Diagnosis
Hypocalcemia is an electrolyte imbalance and is indicated by a low level of calcium in the
indicated by a low level ... mnemonic #overview #symptoms ... #signs
Clinical features of shock from dehydration in an infant

Decreased level of consciousness 
Sunken fontanelle 
Dry mucous
infant Decreased level ... #PhysicalExam #Signs ... #Symptoms #Shock
Acute Spinal Cord Injuries: Pathogenesis and clinical findings
 • Anterior Cord Syndrome -> Anterior spinal artery
function below injury level ... Sensory loss below level ... motor function, level ... pathophysiology #signs ... #symptoms #msk
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
levels, greater level ... less systemic symptoms ... heliotrope rash, Shaw sign ... , holster sign,
NINDS Diagnostic Criteria for Guillain Barre Syndrome 
Features Required for Guillain-Barré Syndrome:
 • Progressive muscle weakness
, Mild sensory symptoms ... or signs, Cranial ... dysfunction, Absence of fever ... Sharp sensory level ... nervous system signs
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
coagulopathy, decreased level ... CNS infection: fever ... shoulder girdle symptoms ... thrombophilia, neurologic signs ... /symptoms in non-arterial
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
findings: • Symptoms ... and signs below ... Pain reported at level ... loss: Sensory level ... response LMN Symptoms
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Coltivirus Symptoms ... elevated protein level ... Normal glucose level ... influenzae Symptoms ... Acute meningeal signs