11 results
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
- Differential ... Diagnosis and Workup ... function test, ANA (e.g ... (CVID, WAS), (neurologic ... changes), high MCV anemia
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... lymphoproliferative disorders ... , Mycoplasma pneumoniae ... #diagnosis #hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Chemotherapy (e.g ... Liver disease, Etc ... Unstable hemoglobin disorders ... RBC #Morphology #differential ... #diagnosis #hematology
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Neoplastic / Hematologic ... • Anemia • ... Disease Neurologic ... • Drug Abuse (e.g ... • Somatization Disorder
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
High altitude (eg ... OSA DIFFUSION DISORDER ... hypoxemia • Causes: Pneumonia ... Intrapulmonary shunting (eg ... intracardiac shunting (eg
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
and Differential ... risk factors (eg ... hypertension (eg ... hypertension (eg ... Neurologic disorders
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... (Cardiac, pulmonary ... dystrophies Work ... electromyographic (EMG ... #Diagnosis #neurology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Leukocytosis, anemia ... Lung Abscess Differential ... • Vasculitis (e.g ... Lung #Abscess #pulmonary ... #differential #
Stiff Person Syndrome (SPS) - Diagnosis and Management Summary

Epidemiology:
 • Prevalence: 1-2 cases per million -
and pernicious anemia ... unit activity on EMG ... of diazepam • EMG ... antibody that works ... EMG Studies:
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... the presence of anemia ... inflammatory disease (e.g ... Chemistry profile (e.g ... metabolic or endocrine disorders