Pain Management Flashcards
What is the pain algorithm for acute mild/moderate pain?
- NSAIDs or APAP
2. Opiods
What is the pain algorithm for acute severe pain?
- Opiods
2. Add NSAIDs or APAP
Pain algorithm chronic visceral
- Opiods for severe
2. Add adjuvants (TCA or AED)
Pain algorithm chronic inflammatory
- APAP or NSAIDs
2. Long acting opiod
Pain algorithm chronic neuropathic, central acting
Clonidine or Baclofen
Plain algotrithm chronic neuropathic, peripheral acting
- TCA or AED
- Lidocaine
- SSRI or SNRI
- Long acting opiod
Pain algorithm chronic functional
- TCA or Tramadol
2. SSRI or SNRI
NSAIDs inhibit what enzyme
cyclooxygenase
Three major clinical actions of NSAIDs
analgesia
anti-inflammatory
antipyretic
PGE analog used to treat NSAID induced GI damage
Misoprostol
Adverse effects include GI bleeds, tinnitus, edema, hyperkalemia
NSAIDs
Contraindications include GI bleeds, hypersensitivity, surgery 1 week prior. Caution in patients with asthma, renal impairment, and thrombocytopenia
NSAIDs
Aspirin gets its anti-coagulant effect how?
it inhibits thromboxane A2 production in platelets leading to ineffective platelets for clotting
Used prophylactically to decrease incidence of TIAs, MI, unstable angina
Aspirin
With chronic use, can prevent colon cancer
Aspirin
Adverse effects include salicylism and hypersensitivity (urticaria, bronchoconstriction, angioedema)
Aspirin
Respiratory effect of aspirin at high dose
hyperventilation->respiratory alkalosis
Respiratory effect of aspirin at toxic dose
central respiratory paralysis->respiratory acidosis
Adverse effects include Reye’s syndrome (given with viral infections can lead to cerebral edema and hepatitis)
Aspirin
Dont give this drug if:
someone is on heparin or warfarin
someone has gout (probenecid & sulfinpyrazone)
Aspirin
What drug could decrease rate of Aspirin absorption?
antacids
What drug inhibits the anti platelet effect of Aspirin?
Ibuprofen
This drug is a derivative of salicylic acid, does not cause salicylate intoxication, is more potent than Aspirin, does not have antipyretic activity, and does not cross the BBB
Diflunisal
This class has less GI side effects than Aspirin. Side effects include dyspepsia (bleeding), HA, tinnitus, and dizziness
Propionic acids
Theraputic use includes gouty arthritis and osteoarthritis of the hip
Indomethacin
This drug is rapidly and almost completely absorbed, metabolized by the liver, and cleared in bile and urine
Indomethacin
Side effects of this NSAID are “worse” than others… Dizziness, N/V/D, anorexia, HA, dizziness, vertigo, mental confusion, hepatic & pancreatic effects
Indomethacin
This drug decreases the effects of ACEI, furosemide, thiazides, and beta blockers
Indomethacin
Interacts with digoxin, lithium, MTX, and enhances the nephrotoxicity of cyclosporines
Etodolac
This drug is approved for RA, OA, and ankylosing spondilitis. An opthalmic preparation is available
Diclofenac
Prodrug used for treatment of RA and OA
Nabumatone
This drug is COX-2 selective at low-moderate doses and nonselective at high doses
Meloxicam