Respirtory Pharmacology Flashcards
How should the nurse administer two inhalers, one of which is a bronchodilator and the other one being steroid-based?
Give the bronchodilator first, wait 5 min (allow bronchioles to open up), give the second inhaler
Side effects of anticholinergics
Can’t see, pee, spit, shit: blurred vision and dilated pupils (mydriasis), urinary retention, dry mouth and eyes, decreased sweat, constipation, flushed face, delirium and confusion, increased body temperature
Upper respiratory drug classes
Antitussives, expectorants, decongestants, antihistamines
Class of medications that work by suppressing the cough reflex
Antitussives
Example of non-opioid antitussive
Dextromethorphan
Characteristics of non-opioid antitussives such as dextromethorphan
Chemically related to opiates, affects cough center in brain, rare to see CNS side effects in recommended dose of 15 mg
Example of opioid Antitussive
Codeine
Characteristics of opioid antitussives such as codeine
Many SE (sedation, delirium), used in numerous cough syrup preparations and is often combined with other respiratory drugs
Class of medication that liquefies and decreases viscosity of secretions so it is easier to cough up
Expectorants
Expectorants patient education
Essential to take with full glass of water and drink water frequently while on these medications
Example of expectorant
Guaifenesin (Mucinex)
Oral and topical agents used to treat nasal congestion associated with the common cold
Decongestants
Examples of decongestants
Pseudoephedrine (Sudafed) and Oxymetazoline (Afrin, Neo-synephrine) nasal spray
Pseudoephedrine (Sudafed) side effects
Heart palpitations, restlessness, shakiness, difficulty sleeping, dry mouth, headaches
Pseudoephedrine (Sudafed) contraindications
Hypertension
Class of medication that block histamines released in response to allergens that cause constriction of bronchioles and increased secretions
Antihistamines
Example of first generation antihistamine
Diphenhydramine (Benadryl)
Diphenhydramine (Benadryl) side effects
Sedation and anticholinergic effects
Examples of second generation antihistamines
Fexofenadine (Allegra), loratidine (Claritin), cetirizine (Zyrtec)
Benefits of second generation antihistamines
Fewer anticholinergic side effects and do not cause sedation
Lower respiratory medication classes
Mucolytics, bronchodilators (adrenergics, methylxanthines), anticholinergics, mast cell stabilizers, leukotriene antagonists, steroids (PO or inhaled), analeptics
Drugs that break up thick, tenacious secretions
Mucolytics