Pulm cases Flashcards
(141 cards)
What is a good indicator of whether or not a URI is bacterial or viral
Is the patient getting worse or better after certian amount of time
What classes of medications are appropriate to recommend or provide for URI
Decongestants
Pain and fever relievers
Cough suppressants
Cough expectorants
Vitamins and Supplements
What medication classes are appropriate to recommend or RX for allergic rhinitis
Antihistamines
Intranasal Corticosteroids
What is the MOA for oral decongestants
Activate alpha and beta adrenergic receptors
What is the effect of PO decongestants binding alpha adrenergic receptors
When bound to alpha receptors of resp mucosa it causes vasoconstriction which reduces mucosal swelling and improves ventilation
What effect do PO decongestants have when binding the beta receptors
Bronchial relaxation
What are the s/e of PO decongestants
Vasoconstriction/tachycardia leading to angina
HTN
Worsening of CVD
Increase BG
Nervousness
Insomnia
Dizziness
Drowsiness
Urinary retention
What population should you avoid PO decongestants
- In pts with HTN
- Pts less than 6 y/o
- Pts in the first trimester of pregnancy
What should you look out for in pts taking PO decongestants
Urinary retention
what is the only decongestant for pt with HTN?
HBP
What are the two decongestants meds?
Pseudoephedrine
Phenylephrine
Which decongestant did jaynstein say “never use this”
Phenylephrine
What is the duration of action for pseudoephedrine
4-6h
What is the duration of action for Phenylephrine
2-4 hours
How much of the pseudoephedrine is absorbed vs phenylephrine
100% vs 38%
What are the MOA of cough suppressants/antitussives (2)
- Centrally act on the medullary cough center
OR
- Locally at the site of irritation
What antitussives act centrally on the medullary cough center
Dextromethorphan
Opiates
Benzonate
What antitussives act locally at the site of irritation
Lozenges
Viscous preps
Menthol
Camphor
Dextromethorphan is actually the D-isomer of what drug?
Codeine
What are the s/e of dextromethorphan
Nausea
Dizziness
Drowsiness
What is a DDI to watch out for with dextromethorphan
Serotonin Syndrome if Rxs with SSRIs and MOAIs.
Esp MOAIs
T/F
Dextromethorphan is contraindicated in pregnancy
False, it is safe
What medication is completely contraindicated with dextromethorphan
MAOIs bc greater risk for serotonin syndrome
Why is codeine not used often as an antitussive
High abuse potential