First Year Flashcards

1
Q

What is the purpose of a right shift of the oxyhemoglobin dissociation curve?

A

Increase delivery of O2 to the tissues

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2
Q

What causes a right shift of the oxyhemoglobin curve?

A

Acidosis: reduced pH, increased [H+]
Increased CO2
Increased 2,3-DPG
Increased temperature

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3
Q

What is the purpose of a left shift of the oxyhemoglobin dissociation curve?

A

Decrease delivery of O2 to the tissues

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4
Q

What causes a left shift of the oxyhemoglobin curve?

A
Alkalosis: increased pH, decreased [H+]
Decreased CO2
Decreased 2,3-DPG
Decreased temperature
HbF, methaemaglobin, carboxyhaemaglobin
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