48 results
How to Evaluate an Abnormal APTT
Step 1: Is the PT or APTT Artifactually Prolonged?
Step 2: Is
K Antagonists, Heparin ... to identify the cause ... of Prolonged APTT ... #prolonged #diagnosis ... #hematology #evaluation
Thrombocytopenia and Pregnancy - TTP/HUS, HELLP Syndrome and Acute Fatty Liver of Pregnancy (AFLP)
Three syndromes in
of Pregnancy (AFLP ... ) Three syndromes ... child * Severe cases ... #obstetrics #hematology ... #diagnosis #table
Differential Diagnosis for a Prolonged PT and aPTT
If the PT and the aPTT are both prolonged,
Differential Diagnosis ... (e.g. heparin contamination ... thrombin inhibitors, heparin ... • Reduced liver ... #hematology #coagulation
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Early liver disease ... e.g. heparin ... Reduced liver synthesis ... #diagnosis #differential ... #hematology #coagulation
Thrombocytopenia and Pregnancy
Three syndromes in the critically ill pregnant woman who presents with coagulation defects.
1) HELLP
Pregnancy Three syndromes ... TTPHUS #HELLP #AFLP ... Obstetrics #OBGyn #Hematology ... #Diagnosis #Comparison ... #Table
Jaundice - Differential Diagnosis Algorithm
Pre-Hepatic - Unconjugated Hyperbilirubinemia
Increased Production
 • Hemolysis
 • Ineffective Erythropoiesis
 • Hematoma
Decreased
- Differential Diagnosis ... Sepsis • Drugs (e.g ... • Gilbert's Syndrome ... #Algorithm #Causes ... #Hepatology #bilirubinemia
Liver Disease in Pregnancy
Intrahepatic Cholestasis of Pregnancy (ICP)
 • Onset/Trimester: 25-32 weeks
 • Typical clinical features:
necrosis HELLP Syndrome ... of Pregnancy (AFLP ... Disease #Pregnancy #hepatology ... #differential #diagnosis ... #icp #HELLP #AFLP
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Medications - Heparin ... ) • Advanced Liver ... Deficiencies #Summary #table ... #comparison #diagnosis ... #hematology #deficiency
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
Thromboplastin Time (PTT ... inhibitor • Liver ... elevated in: • Heparin ... Thromboplastin #laboratory #hematology ... #diagnosis
Alkaline Phosphatase (ALP) Elevation - Differential Diagnosis Algorithm

ALP:
 - Enzymes that catalyze hydrolysis of organic phosphate
- Differential Diagnosis ... Highest • Bone • Liver ... Intestine - Other causes ... elevation DDX of Hepatic ... #Algorithm #hepatology