10 Questions
Which part of the respiratory system is innervated by the autonomic nervous system?
Nose turbinates
What is the major action of sympathomimetic decongestants?
Vasoconstriction
Why should decongestant products be used cautiously in certain conditions?
They may worsen existing hypertension
What is the function of corticosteroid decongestants?
Reducing inflammation
What is the role of cromolyn in the treatment of respiratory conditions?
Preventing allergic reactions
What is the major action of antihistaminic decongestants?
Inhibit histamine release and its effects
Why should decongestant products be used cautiously in certain conditions?
They can increase blood pressure and heart rate
What is the role of cromolyn in the treatment of respiratory conditions?
Inhibit the release of inflammatory mediators
What is the function of corticosteroid decongestants?
Reduce inflammation and suppress the immune response
Which part of the respiratory system is innervated by the autonomic nervous system for vasodilation and mucus secretions?
Nose turbinates
Study Notes
DRUGS EFFECTING THE RESPIRATORY SYSTEM – Part 1: Key Points
- Learning outcomes include reviewing the function of the respiratory system, listing common upper respiratory diseases, and discussing causes of allergic rhinitis, nasal congestion, and rhinitis medicamentosa.
- The major actions of sympathomimetic, antihistaminic, and corticosteroid decongestants, as well as cromolyn, are explained.
- Decongestant products should be used cautiously in certain conditions due to potential adverse effects.
- Premedication assessments and nursing assessments are discussed as necessary during therapy to monitor therapeutic response and adverse effects of decongestant drug therapy.
- The upper respiratory tract (URT) consists of the nose, turbinates (with blood vessels), goblet cells, and ciliated epithelium, and is innervated by the autonomic nervous system (ANS).
- Cholinergic stimulation causes vasodilation and mucus secretions, while sympathetic stimulation leads to vasoconstriction in the URT.
- The URT also includes paranasal sinuses, tonsils, adenoids, and the reflex of sneezing.
Test your knowledge of drugs affecting the respiratory system with this quiz by Dr. Priyalatha. Review the function of the respiratory system, common upper respiratory diseases, causes of allergic rhinitis, and the major actions of sympathomimetic, antihistaminic, and corticosteroid decongestants.
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