10 results
Biphasic Illness of Leptospirosis
Some patients do not progress to severe disease. Others, rapidly develop severe disease
brief interval symptom ... • Headache ... suffusion (redness w/o exudate ... ): • Aseptic meningitis ... #Signs
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential ... ) • Systemic symptoms ... , fever, myalgia ... infection (e.g., meningitis ... arteritis • Acute
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Coltivirus Symptoms ... influenzae Symptoms ... : • Acute meningeal ... signs (fever, nuchal ... second phase of the illness
Symptoms and signs of Leptospirosis
Acute phase:
 - Fever and headache
 - Conjunctival suffusion, jaundice, and photophobia
Symptoms and signs ... Leptospirosis Acute ... and headache ... Immune phase: - Meningitis ... Myocarditis (rare) - Liver
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Muscles, Kidneys, Liver ... Rhabdomyolysis - AKI - Liver ... → Syncope • Signs ... /Symptoms: - Lightheadedness ... tissue damage (AKI, Liver
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
with the same symptoms ... eg, furnaces) Meningitis ... febrile illness—any ... #redflags #signs ... #symptoms #differential
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... status changes - Meningitis ... headache, meningitis ... #signs #symptoms ... #clues #differential
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
coagulopathy, decreased level ... contacts with similar illness ... or at work) - acute ... thrombophilia, neurologic signs ... Dangerous #Deadly #Differential
Modified dengue severity classification, PAHO/WHO
Dengue without warning signs - DNWS:
 • Person who lives or has
Headache/ retro-orbital ... transmission, with acute ... febrile illness ... Liver enlargement ... involvement, such as liver
Waterborne Infections - Differential Diagnosis Framework

Infections that can be acquired from fresh water, brackish water, sea
4 weeks • The illness ... biphasic • Clinical symptoms ... : headaches, chills ... Manifestations include: - Meningitis ... - Liver failure