Which of the following histamine blockers has no effect on muscarinic receptors______________?

Related Mcqs:

1. Therapeutic uses of a – adrenoceptor blockers include all of the following EXCEPT______________?

   A. Hypertension
   B. Amxiety
   C. Peripheral Vascular disease
   D. Benign Prostatic hypertrophy

2. Blockers are used in all except_____________?

   A. Phenochyromocytoma
   B. Migraine
   C. Thyrotoxcosis
   D. Secondary shock

3. Beta blockers are contraindicated in___________?

   A. Angina pectoris
   B. Cardiac arrhythmia
   C. Cardiac failure
   D. Myocardial infarction

4. Which of the following is not true for histamine ?

   A. Causes arteriolar dialation
   B. causes bronchodialtion
   C. Causes pain when injected subcutaneously
   D. Is released following injury and in certain allergic responses

5. Histamine is present on surface of_______________?

   A. Lymphocytes
   B. Mast cells
   C. Neutrophils
   D. Erythrocytes

6. Histamine stimulate the secretion of_______________?

   A. Gastrin by stomach
   B. Pancreatic enzymes
   C. HCL by stomach
   D. Amylase by salivary gland

7. Histidine is converted to histamine by_____________?

   A. Transamination
   B. Hydroxylation
   C. Decarboxylation
   D. Reduction

8. The immediate type of hypersensitivity in which histamine doses not play a major role is______________?

   A. Urticaria
   B. Asthma
   C. Anaphylaxis
   D. Arthus reaction

9. Which of the following is NOT a systemic effect of corticosteroid ?

   A. Increase in IL-1
   B. Increase in total amount of circulatory neutrophils
   C. Anti-inflammatory effect is increased
   D. Inhibit phospholipase A2

10. Which of the following anti-epileptic agents causes the reversible side-effect of gingival hyperplasia ?

    A. Ethosuximide
    B. Phenobarbitone
    C. Sodium valporate
    D. None of the above