28 results
Normal (Negative) Lachman Test for ACL Injury

Andrew Dold, MD @dr.dold.md

#Lachmans #test #ACL #Knee #Injury #Normal #Negative
Normal (Negative) Lachman ... Test for ACL Injury ... #test #ACL #Knee ... PhysicalExam #Sports #Ortho ... anterior #cruciate #ligament
Lachman test in ACL-deficient Knee

This patient has pathologic varus alignment across the knee and a chronic
Lachman test in ... dr.dold.md #Lachmans ... #test #ACL #Knee ... PhysicalExam #Sports #Ortho ... anterior #cruciate #ligament
Positive Lachman test in ACL Injury

Here is an exam of a patient under anesthesia with an
Positive Lachman ... test in ACL Injury ... #test #ACL #Knee ... PhysicalExam #Sports #Ortho ... anterior #cruciate #ligament
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Abnormal Coagulation Tests ... Abnormal #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
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Study • Clotting tests ... • Clotting tests ... Study #diagnosis #hematology ... pathophysiology #hematology ... #laboratory
Bayesian combination of 4T score with Heparin PF4 antibody titer to obtain the post-test probability of
obtain the post-test ... Bayesian #Diagnosis #Hematology ... Thrombocytopenia #Laboratory
Approach to the Hypercoagulable State
Arterial thromboembolism
→ Cardiac rhythm monitoring, Echocardiogram, Vascular imaging
→ Test for APS, particularly
Vascular imaging → Test ... - No other workup ... Hypercoagulable #Workup ... #hematology #diagnosis ... #algorithm #hematology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Differential #Causes #Workup ... #Hematology #Diagnosis ... GrepMed Recommended Text
Prothrombin Time (PT) and Partial Thromboplastin Time (PTT)

Prothrombin Time (PT) - Often Elevated in:
 • Vitamin
• Underfilled test ... Thromboplastin #laboratory ... #hematology #diagnosis