Final - Content Flashcards
Which drug only activates alpha 1 receptors?
Phenyleprine
Which drug activates alpha 1 & beta 1 receptors?
Dopamine
Which drug activates only beta 1 receptors?
Dobutamine
Which drug activates beta 1 & 2 receptors?
Isoprotenerol
Which drug only activates beta 2 receptors?
Terbutaline
What receptors does dopamine activate?
Alpha 1 and beta 1
What receptors does norepinephrine activate?
Alpha 1 & 2, Beta 1
What do alpha 1 blockers end in?
End in: -sin
Ex: Alfusosin
How are alpha 1 & 2 start and end with what?
Start with: Phen
End in: mine
Ex: Phentolamine
Beta 1 blockers start and in what?
- Start with: B,E,A, or M
- End in: -lol
- Ex: Atenolol
Beta 1 & 2 blockers end in?
End in: -lol
Ex: Carteolol
What do most cholinergic drugs end in?
End with: -chol
Ex: Bethanechol, carbachol, acetylcholine
What do most anticholinergic drugs have in there name?
Have: -trop-
Ex: Atropine, Ipratropium,Tiotropium
What occurs when the alpha 1 receptors are activated?
- Pupil dialation
- Arterioles constrict
- Venous constrict
- Male ejaculation
- Contraction of prostate
- Contraction of tigone & sphincter muscle in bladder
What occurs when the beta 1 receptor is activated?
- ↑ HR, ↑ contraction
- Activation of renin
What occurs when the beta 2 receptor is activated?
- Arterioles of the heart, lung, and skeletal muscle are dialated
- Bronchi of the lungs dilate
- Uterus relaxes
- Glycogenolysis in the liver
- Enhanced contraction of skeletal muscle & glycogenolysis
What are some characteristics of catecholamines and what are some examples?
Characteristics:
- Too big to cross BBB
- Short duration of action
- You can’t give this by mouth
Example:
- Norepinephrine
- Epinephrine
- Dobutamine
- Isoprotenerol
What are some characteristics of Non-catecholamines and what are some examples?
Characteristics
- Long duration
- Cross BBB / placenta
- Can be given by mouth
Examples:
- Phenylephrine
- Ephedrine
- Terbutaline
How should oral Penicillin be taken?
Take with full glass of water 1 hour before meals or 2 hours after meals
What is the DOC for MRSA?
Vancomycin
What are the AE of Vancomycin?
- Nephrotoxicity
- Ototoxicity (may be permanent if exceed 30mcg/mL)
- Thrombophlebitis
What drugs are contraindicated with an immunosuppresed pt.?
- Tetracycline
- Steroids
- Live vaccinations
What are some adverse effects of tetracycline?
- Renal toxicity
- Hepatotoxicity
- Phototoxicity
- Chelation - don’t combine w/ other stuff
Causes C. difficile
How should tetracycline be taken?
- Should be taken on an empty stomach: give 2 hours before or 2 hours after chelating agents.
- Council pts to avoid calcium (milk, antacids), iron, magnesium (laxatives), aluminum & zinc for 2 hours before/after taking Tetracyclines.
Can you mix aminoglycosides with penicillins?
Never mix PCN and Aminoglycosides in the same IV solution; Mixing increases bacterial kill capability of Aminoglycosides (can use together, but do not mix)
What are some adverse effects of AMINOGLYCOSIDEs?
- Reversible nephrotoxicity
- Irreversible ototoxicity
What is the MOA of sulfonamides?
Suppress bacterial growth & replication by inhibiting synthesis of folic acid; folic acid required by all cells to synthesize DNA, RNA & proteins
What are the AE of sulfonamides?
- Renal damage (crystal formation) - take with a lot of water
- Hemolytic anemia (esp. African Americans)
What do Fluoroquinolones end in?
- End in: oxacin
- Ex: Ciprofloxacin
What are the adverse effects of Amphotericin B?
- Nephrotoxicity
- Infusion reaction
What is the MOA for penicillins, cephalosporins, carbapenems, vancomycin?
Weaken cell wall which causes cell wall to take up water & burst (osmotic lysis) = bactericidal
What is the MOA for tetracyclines, macrolides, lincosamide, choloramphinicol?
Inhibiting protein synthesis = bacteriostatic
What is the MOA for aminoglycosides?
Rapid bactericidal action through disruption of protein synthesis (dose dependent)
What is the MOA for sulfonamides?
Suppress bacterial growth & replication by inhibiting synthesis of folic acid; folic acid required by all cells to synthesize DNA, RNA & proteins
What is the MOA for Fluoroquinolones?
Inhibits bacterial DNA gyrase—enzyme that converts closed circular DNA into a super coiled configuration (for DNA replication)
What are the AE of Fluoroquinolones?
- Can cause C. difficle
- Possible tendon rupture with systemic use – Affects achilles tendon
- Photosensitivity
What is the DOC to treat C. Diff?
Metronidazole
What are some AE of Metronidazole?
Nephrotoxicity
If a pt. is allergic to penicillins what drug could you give them instead?
Macrolides
How is COPD diagnosed?
Diagnosed based on a decrease in FEV1 and forced vital capacity (FVC) ratio to below 75% on spirometry
What is the 1st line agent for pts. w/ COPD?
Anticholinergics medications
Ex: Ipratropium/Atrovent, Tiotropium/Spiriva, Atropine
What is the 1st choice medication for acute exacerbations in a pt. w/ COPD?
Beta2 Agonists
Ex: Albuterol, Levalbuterol, Salbutamol
When taking a steroid for asthma, what medication should the pt. take before taking the steroid?
Albuterol (beta 2 agonist) to dialate the lungs to make the steroid more effective
What is the 1st line treatment for pts w/ moderate-severe asthma?
Inhaled Glucocorticoids
Ex:
Beclomethasone, Mometasone, Fluticasone
What do inhaled glucocorticoids end with?
End with: -asone
Ex:
- Beclomethasone
- Mometasone
- Fluticasone