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INR: extrinsic, PTT: intrinsic – is it really that simple?

Two paths

Janarthan sent in a great question on one of our posts about the two coagulation paths: the intrinsic and extrinsic pathways. (more…)

Why do the INR and PTT measure different pathways?

test tubeCoagulation questions seem to come up all the time! Here’s a good one from one of our readers. (more…)

What’s the difference between FDPs and D-dimers?

D-dimer

 

Q. What is the difference between FDPs and D-dimers? (more…)

Coagulation tests in 400 words or less

Making a blood clot involves three steps:
1. blood vessel constriction
2. platelet plug formation, and
3. fibrin formation (also called coagulation). (more…)

What does the bleeding time really measure?

white-bleeding-heart

Here’s a very good question about the diagnostic use of the bleeding time. (more…)

Books minus compendia

I need to study:

Other stuff to do

  • Solve unknown cases
  • Check out the most common problems in pathology
  • Read other students’ questions
  • Learn how to give a presentation

The Top Five Coag Posts On…

  • Normal Coag
  • Lab Tests
  • Bleeding Disorders
  • Thrombotic Disorders

Recent Comments

  • Dr Rajendra Singh said You always come with simple explanations, easy to grasp. Tha...
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  • Kristine said Thanks for your comment Ntiamoah! You’re right –...
  • Kristine said Great question, Aya! The red cells in macrocytic anemias don...
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