53 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
papilledema • Horner syndrome ... • Neurological deficits ... • Meningeal signs ... ) • Systemic symptoms ... and signs (e.g.
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
scapularis • Infects ... within morulae Signs ... and symptoms: ... bite • Fever, headache ... myalgias, shaking chills
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... vasoconstriction syndrome ... vasoconstriction syndrome ... #signs #symptoms ... #clues #differential
What is the difference between Influenza (Flu) and COVID-19?
Both COVID-19 and flu can have varying degrees
varying degrees of signs ... feeling feverish/chills ... or body aches Headache ... Flu viruses can cause ... including common signs
Selective Serotonin Reuptake Inhibitors: Mechanisms and Side Effects
 • Serotonin Syndrome:
   - Autonomic Hyperactivity:
Mechanisms and Side Effects ... • Serotonin Syndrome ... Dizziness - Nausea ... Psychiatry #Diagnosis #Signs ... #Symptoms
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Causes of Peripheral ... (Wallenberg's syndrome ... Syndrome usually ... varying neurologic signs ... #differential #
Serotonin-Norepinephrine Reuptake Inhibitors(SNRIs): Mechanisms and Side Effects

Withdrawal: Dizziness, Diarrhea, Insomnia, Nausea, Vomiting
Serotonin Syndrome - Potentially Life
Mechanisms and Side Effects ... Vomiting Serotonin Syndrome ... gain Incr NE: Nausea ... Psychiatry #Diagnosis #Signs ... #Symptoms
Kussmaul's Sign - Differential Diagnosis

Typically the JVP decreases with inspiration as the negative intrathoracic pressure "sucks
Kussmaul's Sign ... Kussmaul's sign ... Kussmaul's sign ... physicalexam #diagnosis #cardiology ... causes
Clinically Important Vitamins and Vitamin Deficiency States
Fat-soluble Vitamins: 
 • Vitamin A - Xerophthalmia, night blindness,
Wernicke-Korsakoff syndrome ... Anaemia, neural tube defects ... Vitamins #Deficiency #differential ... #diagnosis #signs ... #symptoms #nutrition
Clinical manifestations of anaphylaxis. 
Neurological (<15%): Dizziness, syncope, seizures, Confusion, impending doom. headache
Angioedema: Lips, tongue, orbit,
impending doom. headache ... arrest, Kounis syndrome ... arrest GI (>40%): Nausea ... #anaphylaxis #signs ... #symptoms #diagnosis