79 results
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Study • Clotting tests ... an inhibitor of normal ... to be normal. ... Study #diagnosis #hematology ... pathophysiology #hematology
Pace Maneuver for Piriformis Syndrome

With the patient's hips and needs flexed to 90 degrees, the patient
for Piriformis Syndrome ... The test is positive ... Pace #Maneuver #Test ... #clinical #video ... lumbar #sciatica #msk
Freiberg's Test for Piriformis Syndrome

Flex the hip to 90 degrees, internally rotate the hip.
Pain in the
for Piriformis Syndrome ... Flex the hip ... internally rotate the hip ... lumbar #clinical #video ... #physicalexam #msk
Bayesian combination of 4T score with Heparin PF4 antibody titer to obtain the post-test probability of
obtain the post-test ... probability of HIT ... Bayesian #Diagnosis #Hematology
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Investigation of Abnormal ... Coagulation Tests ... #Coagulation #Abnormal ... APTT #Laboratory #Hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Myelodysplastic Syndromes ... WBCs - Normal ... Liver Function Tests ... Liver Function Tests ... Algorithm #Causes #Hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Kasabach-Merritt syndrome ... Ig A vasculitis/HSP ... Differential #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
Direct antiglobulin test ... hemosiderin • PT/aPTT normal ... Management #Algorithm #hematology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Quinidine • HIT ... Non-lmmune: • HELLP Syndrome ... Algorithm #Causes #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
etc) - Viral: HIV ... antiphospholipid syndrome ... Cirrhosis with portal ... Diagnosis #Framework #hematology