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Dyspnea - Differential Diagnosis Framework

Cardiovascular Causes of Dyspnea:
 • Myocardium:
	- Heart failure
	- CAD/ACS
	- Valvulopathy
 • Electrical:
	-
- Differential Diagnosis ... Hepatopulmonary syndrome ... Transverse myelitis • Hematology ... Deconditioning - Pain ... #causes #pulmonary
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Ultrasound Findings ... pleura in severe cases ... Acute Respiratory Distress ... Syndrome (ARDS) ... #differential #diagnosis
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Causes of Pleural ... - Differential Diagnosis ... Pneumonectomy • Trapped lung ... Malignancy • Pulmonary ... #Hepatology #causes
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... Pain in Sickle ... Generally affects long ... #differential #diagnosis ... #causes #hematology
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... • Idiopathic pulmonary ... Churg Strauss syndrome ... Diseases #ILD #diagnosis ... #causes
THE LIMPING OR NON-WEIGHT BEARING CHILD PATHWAY

RED FLAGS - In all cases there are specific
markers which
FLAGS - In all cases ... neurology, back pain ... Sickle cell disease ... Rheumatology ... Peds #Pediatrics #Diagnosis
Right-Sided Heart Failure - Differential Diagnosis Algorithm
Cardiac Causes - Rule out Left-Sided Heart Failure (Most Common):
- Differential Diagnosis ... • Diffuse Lung ... Acute Respiratory Distress ... Syndrome ... • Chronic Lung Infection
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
treat underlying cause ... cirrhosis, nephrotic syndrome ... Pain. ... Stress, Nausea, ... Pulmonary Diseases
Diffuse Acute Abdominal Pain (<72 hours) - Differential Diagnostic Algorithm
Look for surgical abdomen
Upper quadrant: R/O cardiac,
Acute Abdominal Pain ... - Differential Diagnostic ... : R/O cardiac, pulmonary ... Ketoacidosis) • Sickle ... Irritable bowel syndrome
Causes of Eosinophilia - Differential Diagnosis
Bugs:
 - Fungus (aspergillosis)
 - Viral (HIV)
 - Ectoparasites (scabies, myiasis)
Causes of Eosinophilia ... Parasites Drugs: - DRESS ... - AIN - Eosinophilic ... Hypereosinophilic Syndrome ... #Causes #hematology