30 results
Drugs affecting the cardiac action potential. The sharp rise in voltage ("0") corresponds to the influx
to the sodium-channel ... voltage-sensitive calcium channels ... Antiarrhythmics #Classes ... #Effect #ActionPotentials
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
Wellens' Sign: LAD-T ... angina; but T wave changes ... #Wellens #Sign # ... EKG #ECG #Electrocardiogram
Pericarditis can be seen on EKG with diffuse ST elevations without reciprocal changes along with diffuse
without reciprocal changes ... in refractory cases ... Cardiology #Diagnosis #Signs
Serotonin-Norepinephrine Reuptake Inhibitors(SNRIs): Mechanisms and Side Effects

Withdrawal: Dizziness, Diarrhea, Insomnia, Nausea, Vomiting
Serotonin Syndrome - Potentially Life
Diarrhea, Insomnia, Nausea ... - Cognitive Changes ... gain Incr NE: Nausea ... Psychiatry #Diagnosis #Signs
Selective Serotonin Reuptake Inhibitors: Mechanisms and Side Effects
 • Serotonin Syndrome:
   - Autonomic Hyperactivity:
- Cognitive Changes ... Dizziness - Nausea ... Psychiatry #Diagnosis #Signs
Major neurocognitive disorders (MNCD): Diagnosis and workup 

1) Clinical diagnosis Cognitive impairment + loss of autonomy
2)
Alzheimer - 1st cause ... (parkinsonian signs ... - Behavioral changes ... - Behavioral changes ... Dementia - 2nd cause
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
evaluating for other causes ... Non-specific ST-T Changes ... diagnosis #cardiology #electrocardiogram
Polyarteritis Nodosa (PAN): Pathogenesis and Clinical Findings

Medical Comorbidities Malignancies (most commonly hairy-cell leukemia)
Immunogenetic Predisposition: patient is
Viral replication causes ... Peripheral sensory changes ... Pathophysiology #Diagnosis #Signs
Physiologic Skin Changes in Pregnancy - Differential Diagnosis Algorithm

Face
 • Melasma
Abdomen
 • Linea Nigra 
Hormone induced
Physiologic Skin Changes ... • Chadwick's sign ... Diagnosis #Algorithm #causes
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Signs and Symptoms ... mental status changes ... Mental status changes ... #headache #signs ... #symptoms #clues