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Pharmacology

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Respiratory Systems

Question
22 out of 47
 

A 16-year-old patient is in the emergency room receiving nasal oxygen. She has a heart rate of 135/min, a respiratory rate of 40/min, and a peak expiratory flow (PEF) less than 50% of the predicted value. Wheezing and rales are audible without a stethoscope.


After successful treatment of the acute attack, the patient was referred to the outpatient clinic for follow-up treatment of her asthma. Successful strategies currently in use for asthma include all of the following EXCEPT (AIPG 2012)



A Avoidance of antigen exposure

B Blockade of histamine receptors

C Blockade of leukotriene receptors

D Inhibition of phospholipase A 2

E Inhibition of release of mediators from mast cells and leukocytes

Ans. B Blockade of histamine receptors

Histamine does not appear to play a significant role in asthma, and antihistaminic drugs, even in high doses, are of little or no value.

Respiratory Systems Flashcard List

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