Which factors disrupt the clotting process and promote coagulopathy?

• A. Hypothermia, acidosis, hemodilution, medications and blood pressure
• B. Hyperthermia, dehydration, high platelets
• C. Adequate oxygenation and normal pH
• D. Rapid transfusion of warmed blood only

Answer: (A)

Clotting relies on enzymes functioning at the right temperature, a balanced pH, and enough clotting factors and platelets present. When the body cools, the coagulation enzymes work more slowly and platelets don’t activate as well, which slows clot formation. Acidosis further reduces enzyme activity and impairs platelet function, making it harder for clots to form effectively. Dilution from fluids or large-volume transfusions lowers the concentration of clotting factors and platelets, so there aren’t enough components to build a stable clot. Medications that affect coagulation, such as anticoagulants or antiplatelet drugs, directly blunt the clotting system. Blood pressure itself isn’t a direct cause of coagulopathy, but hypotension and shock often go hand in hand with hypoperfusion and metabolic derangements that worsen these effects. Putting it together, hypothermia, acidosis, dilution, and interfering medications create conditions that disrupt clotting and promote coagulopathy.