23 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
Step 1: Is the PT ... Prolonging the PT ... to identify the cause ... #prolonged #diagnosis ... mixing #studies #PTT
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Causes of Prolonged ... PTT • Prolonged ... PTT • Prolonged ... PTT, Normal PT ... #Diagnosis #Algorithm
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
PT and/or aPTT ... Prothrombin Time (PT ... typically prolong PT ... #Abnormal #PT ... #Causes #diagnosis
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
and Management ... antiglobulin test, PT ... /aPTT MAHA likely ... hemosiderin • PT ... /aPTT normal •
Markers of Organ Dysfunction in Severe Sepsis 
Altered consciousness 
Confusion 
Psychosis 

Tachycardia 
Hypotension 
Altered CVP 
Altered
Jaundice Enzymes, PT ... Creatinine PT ... /APTT, D-Dimer ... Severe #Sepsis #CriticalCare ... #Diagnosis #Criteria
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
for a Prolonged PT ... and aPTT If the ... PT and the aPTT ... #Abnormal #PT ... #Causes #diagnosis
Causes of AKI in Pregnancy - Differential Diagnosis
Creatinine - Platelets - Transaminases - LDH - PT/PTT
Causes of AKI in ... - Differential Diagnosis ... Transaminases - LDH - PT ... /PTT - Schistocytes ... #Causes #table
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
• Prolonged PT ... /PTT • Low plasma ... Fibrinogen: ↓ • PT ... /INR: ↑ • PTT: ... INR < 2.3 - APTT
Chest Pain - Diagnosis and Workup Algorithm

History and Exam
Acute life-threatening causes:
 • Acute myocardial infarction
 •
Chest Pain - Diagnosis ... life-threatening causes ... , LET, lipase, PT ... . aPTT • Serial ... #Chest #Pain #Diagnosis
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
== NORMAL PT ... /NORMAL PTT: • ... /NORMAL PTT: Suggests ... and the PTT suggests ... discern these causes