Histamine is involved as a mediator in the following pathological conditon (a) Cocaine (b) Dibucaine (c) Lidocaine (d) Procaine

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Answer :

Ans: B

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Description : The following local anaesthetic raises BP instead of tending to cause a fall: A. Cocaine B. Dibucaine C. Lignocaine D. Procaine

Last Answer : A. Cocaine

Description : Histamine is involved as a mediator in the following pathological condition: A. Delayed hypersensitivity reaction B. Inflammation C. Carcinoid syndrome D. Variant angina

Last Answer : B. Inflammation

Description : Histamine is involved as a mediator in the following pathological condition: A. Delayed hypersensitivity reaction B. Inflammation C. Carcinoid syndrome D. Variant angina

Last Answer : B. Inflammation

Description : The most important receptor involved in cytotoxic drug induced vomiting is (a) Histamine H1 receptor (b) Serotonin 5-HT3 receptor (c) Dopamine D2 receptor (d) Opioid µ receptor

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Description : Smooth muscle relaxation is due to stimulation of which type of histamine receptors (a) H1 (b) H2 (c) H3 (d) All of the above

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Description : Histamine (a) May be released from mast cells by a number of therapeutic agents (b) Causes sedation (c) Decreases the force of contraction of ventricular muscle (d) Can cause strong contractions of the gravid human uterus

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Description : Fall in blood pressure caused by larger doses of histamine is blocked by (a) H1 antihistaminics alone (b) H2 ANTAgonists alone (c) Combination of H1 and H2 antagonists (d) None of the above

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Description : Which of the following is a selective H1 receptor agoinist ? (a) 4-methyl histamine (b) Impromidine (c) 2-Thiazolyl ethylamine (d) Mepyramine

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Description : The following local anaesthetic is poorly water soluble, PABA derivative and primarily used for anorectal lesions, wounds and ulcers: A. Benzocaine B. Dibucaine C. Procaine D. Benoxinate

Last Answer : A. Benzocaine

Description : Which local anesthetic should be used to treat symptoms of pain, itching, burning, and disconfort in patients with an established lidocaine allergy? (a) Tetracaine (b) Dibucaine (c) Pramoxine (d) Benzocaine

Last Answer : Ans: C

Description : The drug that can directly release histamine from mast cells without involving antigen-antibody reaction is: A. Aspirin B. Procaine C. Morphine D. Sulfadiazine

Last Answer : C. Morphine

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Last Answer : C. Morphine

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Last Answer : Ans: D

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Last Answer : A. It is the sole mediator of immediate hypersensitivity reaction

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Description : Acute exacerbations of asthma can be triggered by all of the following except (a) Bacterial of viral pneumonia (b) Hypertsensitivity reaction to penicillin (c) Discontinuation of asthma medication (d) Hot, dry weather (e) Stressful emotional events

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Last Answer : Ans: A