13 results
Features of a Sickle Cell Crisis 
Sickle-cell disease - an autosomal recessive blood disorder.
Characterized by red
Crises can be precipitated ... The underlying pathophysiology ... Can be triggered ... co-existent G6PD deficiency ... Features #Signs #Symptoms
Algorithm for the diagnostic evaluation of dizziness. (HINTS = head-impulse, nystagmus, test of skew.)
Questions regarding the
The approach uses ... Timing of the symptom ... provoke the symptom ... #Diagnosis #Dizzy ... Dizziness #Algorithm #Differential
Dizziness and Vertigo Algorithm
Presyncope:
 • Feels "faint" or like they are going to "pass out"
 •
"pass out" • Symptoms ... may be triggered ... Associated with nausea ... Vertigo #Algorithm #dizzy ... #differential #
Iron Deficiency in Heart Failure
Pathophysiology:
Chronic heart failure leads to an increase in inflammatory cytokines → Inflammation
Iron Deficiency ... Heart Failure Pathophysiology ... → Inflammation causes ... improvement in symptoms ... diagnosis #management #cardiology
21-Hydroxylase Deficiency (21-OHD): Pathogenesis and Clinical Findings
Autosomal recessive mutation in CYP21A2 coding for the enzyme 21-OHase
21-Hydroxylase Deficiency ... enzyme 21-OHase causes ... • Salt wasting crisis ... Signs/Symptoms/Complications ... #21HydroxylaseDeficiency #21OHD #pathophysiology
Refeeding Syndrome Overview

What Is It?
	• Electrolyte/fluid shifts caused by initiation of nutrition in severely malnourished patient.
Hypo-Mg2+ • Vitamin deficiency ... overload) Other Symptoms ... • Vitamin D deficiency ... Syndrome #Nutrition #Differential ... #Diagnosis #Pathophysiology
Thiamine Deficiency - Differential Diagnosis Framework and Clinical Manifestations

Causes of Thiamine Deficiency:
 • Poor intake:
	- Diets
- Differential ... Manifestations Causes ... Wet beri-beri triggers ... Manifestations #Differential ... beriberi #nutrition #pathophysiology
Widened Pulse Pressure - Differential Diagnosis and Pathophysiology

Pulse pressure is the difference between the systolic blood
Pulse Pressure - Differential ... Diagnosis and Pathophysiology ... • Severe iron deficiency ... #Diagnosis #Pathophysiology ... #causes #cardiology
X-Linked Agammaglobulinemia: Pathogenesis and clinical findings
The epidemiology of this disease is 1/340,000 births and roughly double
remainder likely arises ... to produce all classes ... antibodies) -> Complete deficiency ... immunity Signs/Symptoms ... Agammaglobulinemia #XLinked #pathophysiology
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
• Hypertensive crisis ... Etiology: • Pathophysiology ... Neurological symptoms ... Reversible course Differential ... the underlying cause