Pharm: anti-inflammatories and analgesics Flashcards
______ can come from trauma, surgery, extreme heat or cold, caustic chemical agents, infection
inflammation
what are the 2 inflammatory phases?
vascular phase and delayed phase
vessels vasodilate allowing blood and fluid to move to the site of injury (swelling)
vascular phase
Leukocytes move into the site of injury
delayed phase
cyclooxygenase enzyme
COX
converts arachidonic acid into prostaglandins which causes inflammation and pain at injury site (histamine, kinin, and prostaglandin (cause inflammation))
COX
What are the 2 forms of COX enzymes?
COX-1 and COX-2
protects stomach lining and regulates blood platelets
COX-1
triggers inflammation and pain
COX-2
cardinal signs of inflammation
redness, warmth, swelling, pain, loss of function
nonsteroidal antiinflammatory drugs
NSAIDs
NSAIDs do what?
-decrease inflammation
-antipyretic properties (prevent/reduce fever)
-inhibit COX enzyme needed for prostaglandin synthesis
-relieve pain
-reduce elevated body temp
-inhibit platelet aggregation
-mimic effects of corticosteroids
NSAIDs
common 1st generation NSAIDs (nonspecific inhibitor of COX enzymes)
-aspirin
-ibuprofen
second generation NSAID (selective and only inhibits COX-2) not as much effect on GI (ulcer risk/history may benefit)
celecoxib (Celebrex)
true or false: NSAIDs increase the risk of bleeding
true
acetylsalicylic acid (ASA): antiinflammatory, antiplatelet, antipyretic effects
aspirin
Why no give children aspirin?
Reye’s syndrome
toxic serum salicylate lvl?
> 300 mcg/mL
Why take NSAIDs w/ food?
can cause GI upset
What kind of coating protects GI tract because it does not absorb until small intestine?
enteric coated
2 issues that need to be watch when patient is on NSAIDs
-watch for bleeding
-increased risk of hypoglycemia when on ORAL DIABETIC MEDS
adult aspirin
325mg
baby aspirin
81mg
aspirin changes what lab values
-prolonged prothrombin time
-decrease cholesterol and potassium
foods that contain salicylates
-prunes, raisins, licorice
-certain spices (curry, paprika)