Review/ 80 Q&A/ 2024-2025.
What medication would you prescribe for bronchospasm for a patient taking propranolol? -
Answer: Ipratropium
What is the mechanism of action of albuterol? - Answer: Relaxes bronchial smooth muscle by
action on beta 2 receptors with little effect on heart rate, causing dilation of airways.
What is the mechanism of action of inhaled corticosteroids? - Answer: Extremely potent
vasoconstrictive and anti-inflammatory activity.
When is it appropriate to use a short acting beta agonist? - Answer: Short acting beta 2 agonist
(SABAs) are the drug of choice for acute treatment of asthma symptoms and exacerbations.
What is the mechanism of action of inhaled muscarinic receptor antagonist? - Answer: Atropine
(the prototype of muscarinic receptor antagonists) prevents the effects of ACh by competitively
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, blocking its binding to muscarinic receptors in the CNS, peripheral ganglia, and at neuroeffector
sites on smooth muscle, cardiac muscle, and secretory glands.
What inhibits the secretions of the nose, mouth, pharynx, and bronchi and thus causes dryness
of the mucous membranes of the respiratory tract. - Answer: Atropine
Atropine and scopolamine - Answer: the inhibition of secretions is esp marked if secretions is
excessive and is the basis for the use of which drugs in preanesthetic medication.
Atropine - Answer: the depression of mucous secretion and the inhibition of mucociliary
clearance is an undesirable side effect of ___ in patients with airway disease.
Methacholine - Answer: Atropine is effective against bronchoconstriction induced by
parasympathomimetic drugs like ______.
Histamine and bradykinin - Answer: Atropine also partially antagonizes bronchoconstriction
induced by ___ and ___.
Neuromuscular junction. - Answer: Because muscarinic receptor antagonist cause little blockade
of the effects of ACh at nicotinic receptor sites, extremely high doses of atropine or related
drugs are required to produce any degree of blockade of the predominantly nicotinic receptors
at the ___ ____.
What are the adverse effects associated with inhaled corticosteroids? - Answer: Thrush,
dysphonia, cough, and bronchospasm, thin skin, bone loss, smell of burning plastic, h/a, and
visual changes
What special populations should not be prescribed pseudoephedrine? - Answer: Not to be used
in children under four years of age, and patients with HTN.
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