56 results
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Abnormal Coagulation Tests ... PT - Prolonged aPTT ... PT - Prolonged aPTT ... #Laboratory #Hematology ... #Diagnosis #Workup
Laboratory Testing in Hemolytic Anemia

Intravascular vs Extravascular Hemolysis
Reticulocytes
Unconjugated bilirubin
LDH
Peripheral smear
Haptoglobin
Urine hemosiderin
Urine hemoglobin
Carboxyhemoglobin

#Hemolytic #Anemia #Laboratory #Testing #workup
Laboratory Testing ... Hemolytic #Anemia #Laboratory ... #Testing #workup ... #diagnosis #hematology
Effect of Anticoagulants on Coagulation Tests
PT / INR, aPTT, Anti-Xa Activity, Activated Clotting Time, Thrombin Time,
on Coagulation Tests ... PT / INR, aPTT, ... Anticoagulants #Tests ... Anticoagulation #Testing ... #Diagnosis #Laboratory
Approach to Thrombotic Microangiopathy (TMA) - Differential Diagnosis and Management Algorithm

Suspected TMA: Unexplained thrombocytopenia + MAHA
Diagnosis and Management ... Direct antiglobulin test ... , PT/aPTT MAHA ... hemosiderin • PT/aPTT ... #Algorithm #hematology
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Study • Clotting tests ... PT and/or aPTT) ... Study #diagnosis #hematology ... pathophysiology #hematology ... #laboratory
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
/uL Initial Workup ... iron studies, PT/aPTT ... Differential ... Diagnosis #Algorithm #hematology ... #workup
Gastrointestinal Evaluation of Iron Deficiency Anemia
In patients with anemia, diagnose iron deficiency if:
 • Ferritin <
• Additional laboratory ... Test for celiac ... Non-invasive testing ... change medical management ... Gastrointestinal #Evaluation #workup
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
Thromboplastin Time (PTT ... Thromboplastin Time (PTT ... • Underfilled test ... Thromboplastin #laboratory ... #hematology #diagnosis
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
Diagnosis and Management ... Laboratory Diagnosis ... the preferred test ... testing of skin ... typically part of the workup
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... smear, HIV/HCV testing ... cases: INR/PT, aPTT ... K), H. pylori test ... #hematology