Oxygen affinity decreases in_________________?

Related Mcqs:

1. What effect does hyperventilation have on the oxygen binding affinity of hemoglobin ?

   A. P50 and oxygen affinity decrease
   B. P 50 and oxygen affinity increase
   C. P 50 decreases and the oxygen affinity increases
   D. P50 increase and the oxygen affinity decreases

2. Oxygen affinity is increased by all except_________________?

   A. Alkalosis
   B. Hypoxia
   C. Increased HbF
   D. Hypothermia

3. The drug which has an affinity for a receptor site and produces the intrinsic activity of the receptor cell or enzyme system is known as____________?

   A. An agonist
   B. A non competitive antagonist
   C. A physiologic antagonist
   D. A competitive antagonist

4. T- lymphocytes play a primary role in_________________?

   A. Production of Antibodies
   B. production of lymphokines and delayed hypersensitivity
   C. Activation of complement system
   D. Immediate Hypersensitivity

5. Which hormone is released when serum calcium decreases ?

   A. Parathormone
   B. Calcitonin
   C. Thyroxine
   D. Adrenaline

6. Oxygen dissociation curve shifts to the right by all of the following except_____________?

   A. Rise in temperature
   B. Rise in carbon dioxide tension
   C. Rise in pH
   D. Rise in H+ ion

7. Increase in partial pressure of CO2 leading to release of oxygen to the tissues is________________?

   A. Haldane effect
   B. Bohr effect
   C. Breur effect
   D. Hamburger effect

8. Oxygen as an emergency drug is contraindicated in______________?

   A. Anaphylaxis
   B. Asthma
   C. Hyperventilation
   D. COPD

9. Inability of exchange of oxygen through lung tissue if known as____________?

   A. Anoxic anoxia
   B. Anoxia
   C. Histotoxic hypoxia
   D. Ischemic hypoxia

10. Oxygen dissociation cure is shifted to the right in all except_____________?

    A. Fall in pH
    B. Rise in temperature
    C. Increase of 2, 3 3 DPG
    D. HbF