15 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential ... lyme • Altered mental ... • Meningeal signs ... ) • Systemic symptoms ... and signs (e.g.
Biphasic Illness of Leptospirosis
Some patients do not progress to severe disease. Others, rapidly develop severe disease
Biphasic Illness ... brief interval symptom ... • Fever • Headache ... suffusion (redness w/o exudate ... #Signs
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
Dangerous Causes of Headache ... contacts with similar illness ... shoulder girdle symptoms ... thrombophilia, neurologic signs ... Dangerous #Deadly #Differential
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... poisoning • Mental ... vasoconstriction syndrome, central ... #signs #symptoms ... #clues #differential
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Differential ... - Autonomic symptoms ... meningeal irritation signs ... #differential # ... diagnosis #ophthalmology
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Peripheral and Central ... CENTRAL VERTIGO ... Occlusion of posterior inferior ... varying neurologic signs ... Vertigo #Causes #differential
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Heat Stroke - Differential ... → Syncope • Signs ... /Symptoms: - Lightheadedness ... sensations - Headache ... #differential #
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
with the same symptoms ... Acute febrile illness—any ... Previous chronic illness ... #redflags #signs ... #symptoms #differential
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Coltivirus Symptoms ... : • Headache ... influenzae Symptoms ... Acute meningeal signs ... second phase of the illness
Modified dengue severity classification, PAHO/WHO
Dengue without warning signs - DNWS:
 • Person who lives or has
without warning signs ... Headache/ retro-orbital ... acute febrile illness ... Dengue with warning signs ... the following signs