In mycocarrdial infarction the first enzyme to rise____________?

Related Mcqs:

1. After myocardial infarction all of the following enzyme levels are high except_____________?

   A. Serum glutamic oxaloacetic transaminase (SGOT)
   B. Lactic Dehydrogenase (LDH)
   C. Creatine phospho kinase (CPK)
   D. Serum ornithine carbamyl transferase (SOCT)

2. Three days after the onset of myocardial infarction, which enzyme level has the best predictive value____________?

   A. Serum CPK
   B. Serum LDH
   C. Serum SGOT
   D. Serum SGPT

3. Infarction of anterior inferior cerebellar artery may cause damage to_______________?

   A. Pyramidal tract
   B. Lateal spinothalamic tract
   C. Vestibular nuclei
   D. Spinal nucleus of trigeminal nerve

4. The dominant histologic feature of infarction is__________________?

   A. Liquefactive necrosis
   B. Coagulative necrosis
   C. Chronic inflammation
   D. Scar tissue

5. The common cause of sudden death in myocardial infarction is____________?

   A. Pulmonary embolism
   B. Arrhythmias
   C. Congestive heart failure
   D. None of the above

6. A patient on warfarin sodium following myocardial infarction reports for an oral surgical procedure which one of the following laboratory tests should be preferred to ascertain the fitness_______________?

   A. Prothrombin time
   B. Tourniquet time
   C. Clotting time
   D. Bleeding time

7. Km of an enzyme is_____________?

   A. Dissociation constant
   B. The normal physiological substrate concentration
   C. Substrate concentration at half maximal velocity
   D. Numerically identical for all isozymes that catalyses a given reaction

8. Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?

   A. MM fraction
   B. MB fraction
   C. BB fraction
   D. Both MM and BB fraction

9. The enzyme phosphofructo kinase-1 is strongly activated by_______________?

   A. Cyclic AMP
   B. Adenosine tri phosphate
   C. Citrate
   D. Fructose 2,6 bis phosphate

10. Which of the following is a membrane bound enzyme that catalyzes the formation of cyclic AMP from ATP ?

    A. Tyrosine kinase
    B. Polymerase
    C. ATP synthase
    D. Adenylate cyclase