141 results
Underlying causes of PEA arrest: H’s and T’s 

Hypovolemia, Hypoxia, Hydrogen Ion (acidosis), Hypo/Hyper-kalemia, Hypothermia
Toxins, Tamponade,
Underlying causes ... acute, massive MI ... Differential #Diagnosis #Table
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
LV compliance), ECG ... electrocardiogram, MI ... Grades #Criteria #Table
Differentiating type-I vs. type-II MI

Sorting this out is difficult, often relying heavily on clinical judgement.

A key
type-I vs. type-II MI ... give someone 500 mcg ... probably a type-2 MI ... The table below ... NSTEMI #Comparison #Table
Arrhythmias - Differential Diagnosis Algorithm
May present as: palpitations, dizziness, syncope, chest discomfort
Cardiac Causes:
 - Structural
Differential Diagnosis Algorithm ... tissue (previous MI ... ) Non-Cardiac Causes ... Differential #Diagnosis #Algorithm ... #causes
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Causes of Splenomegaly ... Differential Diagnosis Algorithm ... • Thrombus (e.g ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Differential Diagnosis Algorithm ... Toxic Damage (e.g ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... in conduction causes ... #Hyperkalemia #EKG ... #ECG #Changes # ... Progression #Table
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... Deep coma (any cause ... polyneuropathy (e.g ... Hyperreflexia #Testing #Causes ... differential #diagnosis #table
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   • Trauma
contractility) - Acute MI ... exacerbation (any cause ... Classification #Table
Causes of Congenital Anomalies - Differential Diagnosis Algorithm
Malformation
 • Embryonic development failure or inadequacy (often multifactorial)
Deformation
Causes of Congenital ... Differential Diagnosis Algorithm ... normal tissue (e.g ... Differential #Diagnosis #Algorithm ... #Causes #Peds #