81 results
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
to one factor e.g ... e.g. heparin ... inhibitory drugs e.g ... #diagnosis #differential ... #hematology #coagulation
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
and Workup Algorithm ... life-threatening causes ... : • EKG • Bedside ... LET, lipase, PT. aPTT ... #Algorithm #workup
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... (e.g. heparin contamination ... inhibitory drugs (e.g ... specific inhibitor (e.g ... #diagnosis #differential
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... : INR/PT, aPTT(liver ... function test, ANA (e.g ... #Diagnosis #Causes ... #Workup #hematology
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Diagnosis Algorithm ... • Thrombus (e.g ... Myeloproliferative disorders (eg ... #Diagnosis #Algorithm ... #Causes #Hematology
Wide Complex Tachycardia - ECG Definition and Causes
 • Wide Complex Tachycardia (WCT) is a cardiac
Tachycardia - ECG ... pathway conduction (~1- ... #cardiology #ekg ... #ecg #electrocardiogram ... #definition #differential
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Diagnosis Algorithm ... Toxic Damage (e.g ... Displacement (e.g ... #Diagnosis #Algorithm ... #Causes #Hematology
Causes of Excessive Daytime Sleepiness - Differential Diagnosis Algorithm
Insufficient Sleep
 • Poor Sleep Hygiene
 • Insomnia
Diagnosis Algorithm ... Shift Work) Sleep ... Disorders • Neurologic ... Disorders (Eg. ... #Diagnosis #Algorithm
Approach to the Hypercoagulable State
Arterial thromboembolism
→ Cardiac rhythm monitoring, Echocardiogram, Vascular imaging
→ Test for APS, particularly
• Provoked (e.g ... - No other workup ... screening, CBC, aPTT ... #hematology #diagnosis ... #algorithm #hematology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
Diagnosis Algorithm ... discrete buckets: 1. ... #Diagnosis #Algorithm ... #Causes #workup ... #nephrology