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If that's then thinking, then how would you differentiate between PT & PTT?
Why isn't "Decreased platelet count" correct? Aspirin does not decrease the platelet count, only inactivates platelets.
Because dicumarol does not decrease platelet count either.
Increased blood HCO3 could have easily been interpreted as increased blood pH aswell. FOllowing your explanation, since the pt had acidosis, the increased HCO3 will just make it a normal pH.
Another way to think of the question is: if there is decreased exhalation due to COPD --> increased CO2 --> increased CO2 transported in blood by entering the RBC's with Carbonic Anhydrase and HCO3 is released into blood stream. So increased CO2 -> increased HCO3 seeing as this type of CO2 transport is 70% of total CO2 content in blood.
I thought you could never fully compensate, so your pH will never normalize.
Primary problem = respiratory acidosis → pH low. Compensatory metabolic alkalosis will increase blood HCO3-, but not enough to normalize pH, it will just be 'less' low, but still an acidosis.