Unit 9 EENT and Pulmonary Agents ppt. slides Flashcards
Generally the provider should avoid ______ when treating cough; because it is a prodrug requiring activation.
Codeine
Ephedrine and phenylephrine should not be take with ________ because of the increase risk of severe hypertension, arrhythmias, fever, and death.
MAOIs:Class 1 recommendation Linezolid : class 2 recommendation
These are non-pharmacogenomically based DDIs
What is the most common eye disease?
Conjunctivitis
Viral rhinitis or upper respiratory viral infection tx
Decongestants
Intranasal steroids & cromolyn
Antitussives and expectorants
Mechanism of action decongestants
Pseudoephedrine / phenylephrine
a-Adrenergic receptor agonist (sympathomimetic)
Produces vasoconstriction
Reduces tissue edema, nasal congestion, increases nasal patency, opens obstructed eustachian ochia
State restricts it ! Pts can make meth
Mechanism of action antihistamines:
Compete for histamine at H1 receptor sites
Treat IgE- mediated allergy ( allergic rhinitis and urticaria)
Anticholinergic, antipruritic, and sedative effects
Mechanism of action Intranasal steroids
Potent glucocorticoid and weak mineralocorticoid activity
Local antiinflammatory effects
Control symptoms of allergic rhinitis
Pt must use consistently daily for med to work May take weeks!
What are the four major symptoms of allergic rhinitis ?
Rhinorrhea Congestion Sneezing Nasal itch ( can all be controlled by Intranasal steroids)
Mechanism of action Antitussives:
Codeine and Dextromethorphan:
act on medulla to suppress cough
Mechanism of Action: Expectorants
Increase respiratory tract secretions,
Loosen bronchial secretions by reducing adhesiveness and surface tension ,
Help mucociliary movement of secretions from airways
Non pharmacological treatment of upper respiratory
Rest
fluid
identify environment precipitants
normal saline nasal sprays
Treatment of upper airway with differing severities
- Mild: antihistamine/decongestant.
- Moderate: regular Intranasal corticosteroid. (decongestant if
needed) - Moderate & Persistent: combo of Intranasal corticosteroids + nonsedating antihistamine + (decongestant if needed)
- Severe: all of the above if needed and consider oral steroid and use of oxymetazoline.
Decongestants are very effective but should be used with caution in:
Elderly
HTN, CVD, PVD, hyperthyroidism, DM, prostatic hyperplasia, urinary retention, increased intraocular pressure
Decongestants are Contraindicated in:
Patients with mitral valve prolapse and cardiac palpitations
Patient presents with any of the following: allergic of no allergic pruritic symptoms, urticaria, angioedema, previous reaction to blood plasma product, anaphylactic reaction then the prescriber would give
An antihistamine
Also can be used for antiemetic effects and vertigo
Most effective agent for management of allergic rhinitis:
Intranasal steroids
Can also help shrink nasal polyps
Over the counter drug effective in seasonal allergies that the patient starts 3-4 weeks prior to allergy season
Cromolyn
Intranasal mast cell stabilizer
In general a cough should not be suppressed. Antitussives should not be suppressed unless;
The patient is having a nonproductive cough that is causing muscle pain or is interfering with sleep.
A patient is insistent on a cough remedy for a presenting respiratory tract infection. What do you prescribe?
Expectorant
A patient is prescribed an expectorant. What is important educational info while taking this drug
Fluid intake up to 1 gallon of water a day in pts who don’t have fluid restriction
The Use of Intranasal corticosteroids in prepubescent children poses a potential risk for :
Growth suppression
Watch out for beclomethasone dipropionate
Antihistamine therapy is contraindicated in :
Third trimester of pregnancy
Infants
Nursing mothers
The primary symptom management drug for COPD :
Bronchodilator
Long term treatment of asthma consists of :
Inhaled corticosteroids: help airflow by reducing inflamed bronchioles
Mast cell stabilizers: prevent and reduce bronchial wall inflammation
Leukotriene modifiers: act on inflammatory mediators (alt to steroids)
Long acting B2 agonists: smooth muscle relaxation
Methylxanthines: promote bronchodilation