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Levothyroxine tablet strengths are also color coded. Depending on the tablet shape (round vs oval) and
Levothyroxine #Synthroid ... ThyroidDisorder #ColorCoded
Schema for Unintentional Weight Loss - Differential Diagnosis Framework
Weight Loss without Inflammation:
 • Decreased Intake: Food
Weight Loss - Differential ... Antidepressants, Synthroid ... #Weight #Loss #Differential
Causes of Hyperferritinemia - Differential Diagnosis
Ferritin > 1000
Ferritin is the storage form of iron. Increased hepcidin
Hyperferritinemia - Differential ... AOCI -1% 7. ... Onset Still's - 1% ... saturation to differentiate ... Hyperferritinemia #Differential
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential ... pH Normal 1. ... Appropriate Aldo 1. ... Inappropriate Aldo 1. ... #Hypokalemia #Differential
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... Conduction blocks (1° ... , 3° and Type 1 ... Conduction blocks (1° ... Arrhythmias #Anatomical #Differential
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup and Differential ... Consumption Disorders 1. ... Screen for HLH 1. ... - Malignancy 1. ... Pancytopenia #Workup #Differential
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
Shoulder Pain - Differential ... the AC joint: 1. ... Shoulder #Pain #Differential
Common Childhood Exanthems - Differential Diagnosis
1) Rubeola (Measles) - Measles morbillivirus (MeV)
2) Scarlet Fever - Streptococcus
Childhood Exanthems - Differential ... Diagnosis 1) Rubeola ... Childhood #Exanthems #Differential
Shock - Pathophysiology 
Inadequate tissue perfusion to meet O2, nutrient requirements
1. Distributive Shock
2. Hypovolemic Shock
3. Cardiogenic
requirements 1. ... Pathophysiology #differential
Diagnostic Schema for Hyperferritinemia

Pearl: Diseases associated with extreme elevations: 
1. HLH 
2. Still's disease 
3. Systemic
elevations: 1. ... Hyperferritinemia #Algorithm #Differential