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Causes of Dizziness / Lightheadedness - Differential Diagnosis Algorithm
Lightheaded, unsteady, disoriented - Non-vertigo
Organic Disease
 • Presyncope/Vasodepressor
Causes of Dizziness ... Arrhythmia • Orthostatic ... Disorder • Phobic Dizziness ... Somatization #Dizzy #Dizziness
Dizziness - Differential Diagnosis Framework
Vertigo:
 • Peripheral: Labyrinthitis, BPPV, Meniere's disease, Alternobaric
 • Central: CVA/TIA -
Dizziness - Differential ... Acute anemia, Orthostatic ... Chiefs @jmcchiefs #Dizziness
Dizziness - Differential Diagnosis Framework
"Tell me what you mean by dizzy without using the word dizzy."
Vertigo:
Dizziness - Differential ... Bradyarrhythmias, HOCM, PE • Orthostatic ... Chiefs @jmcchiefs #Dizziness
CLINICAL MANIFESTATIONS 
OF ADRENAL INSUFFICIENCY. 

Primary and secondary adrenal insufficiency:
 - Tiredness, weakness, mental depression
CLINICAL MANIFESTATIONS ... weight loss - Dizziness ... , orthostatic hypotension
Algorithm for the diagnostic evaluation of dizziness. (HINTS = head-impulse, nystagmus, test of skew.)
Questions regarding the
evaluation of dizziness ... and evolution of dizziness ... ) that provoke dizziness ... categorize the dizziness ... into one of three clinical
Atrial Fibrillation Overview

Symptoms:
Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

1. Why?
Cardiac:
• Valvular heart disease
•
light-headedness, dizziness ... Noncardiac: • Pulmonary
Extrapulmonary manifestations of COVID-19
 • Neurologic: Headaches, Dizziness, Encephalopathy, Guillain-Barré, Ageusia, Myalgia, Anosmia, Stroke
 • Renal:
Neurologic: Headaches, Dizziness ... vein thrombosis, Pulmonary ... ischemia, Acute cor pulmonale
Dihydropyridine Calcium Channel Blockers

Mechanism of Action:  L-Type calcium channel blockade - Inhibits the influx of
raynauds phenomenon, pulmonary ... Peripheral edema, Dizziness
Syncope - Differential Diagnosis
The percentage of syncopal events secondary to arrhythmias or structural disease is generally
- Others Orthostatic ... stenosis • HOCM • Pulmonary
Syncope is a sudden, transient loss of consciousness, which is thought to be secondary to cerebral
syndrome) and orthostatic ... examination, including orthostatic ... should be guided by clinical