Musculoskeletal Issues Flashcards
What is OA?
progressive dx results in chronic pain, restricted, ROM, muscle weakness, ESR <20
What is the primary & secondary cause of OA?
1: idiopathic, normal aging
2: traumatic or inherited conditions
What are nonpharmacological ways to treat sx of OA?
moist heat, wt loss, exercise to strengthen muscle, keep moving
What are the goals of drug therapy of OA?
maintain function, prevent further joint damage, diminish associated pain
What are the sequence of treatment for OA?
1st: Tylenol 3,250mg/day
2nd: NSAIDS (due to GI complications)
3rd: Analgesics/Opioid+APAP
4th: intra-articular corticosteroids
What is the MOA of Tylenol?
exert action on CNS & inhibit COX, decreasing prostaglandin sythesis. Act as analgesic & anti-pyretic NOT anti-inflammatory
What quality of pain does Tylenol treat?
mild to moderate pain
When is Tylenol most effective? Time frame response?
around the clock, 1 week
What are cautions & contraindications of Tylenol?
> 4gm hepatotoxicity, hepatic dx, >3 ETOH/week. If on chronic Tylenol & warfarin monitor INR
What is an important pt education for Tylenol?
Can be found in other meds & take around the clock
What is the MOA for NSAIDS?
reversibly inhibit Cox-1 & Cox-2 enzymes which decrease formation of prostaglandin precursors
What meds are Cox-1?Cox-2? Salicyclic acid?
Cox-1: Ibuprofen/Motrin/Advil, indomethacin, naproxen, diclofenac
Cox-2: celecoxib/Celebrex
Salicyclic Acid: aspirin
What are advantages to Cox-2? disadvantages?
- less upper and lower GI effects
- increased risk of CV events, thrombotic events, MI, & stroke (led to removal of COX-2 meds from market except celebrex)
What are the main side effects of NSAIDS?
impair platelet aggregation causing bleeding, GIB, ulcers, GI issues, wt gain, HA, perforation, gastric outlet obstruction
What is the time frame for response for NSAIDS?
2-3 weeks
What is the max daily dose for ibuprofen? naproxen?
ibuprofen <3.2gm/day
naproxen 1,250mg/day
When are NSAIDS contraindicated?
sulfa/aspirin allergy, ETOH, renal/hepatic impairment
What is BLACKBOX warning for NSAIDS?
thrombotic events, GIB, CVD risk factors, ulcerations, perforations, not give periop for CABG
What is a drug-drug interaction w NSAIDS?
ACE & ARB b/c it can cause HTN & affect renal function, avoid NSAID use
Why must you have good kidneys with NSAID use?
b/c it can decrease renal perfusion
What medication can you give to combat GI effects of NSAIDS?
Prilosec
What must you do when giving NSAIDS to geriatric population?
give shorter half-life in smaller dose, Cox-2 or give w misoprostol or PPI. Watch for renal failure & platelet aggregation issues
What are topical NSAIDS? When is it used?
voltaren gel, diclofenac. 1st line for pain in hands. Used for acute pain for sprains & strains.
Do topical NSAIDS have same side effects & contraindications/cautions?
yes, less systemic but still has all the effects & contraindications
What is the MOA for topical capsaicin?
depletion of substance P from peripheral sensory neurons
When would you use capsaicin?
for those w renal & liver dysfunction
When is the time frame response for capsaicin?
2-4 weeks of continual use
What is a patient education for capsaicin?
don’t apply to broken or irritated skin
What are some meds that are analgesics?
Tramadol, tapentadol, codeine
What is the MOA of tramadol?
mu opioid receptor agonist (inhibit pain pathway, inhibit reuptake of serotonin & norepi
What type of pain would you use Analgesics?
moderate pain has no inflammatory effect
What are some side effects of analgesics?
nausea, drowsiness, sweating, flushing
ADVERSE: constipation, euphoria, respiratory depression, sedation
Can you take analgesics indefinitely?
No, for a limited time due to dependence & withdrawal, when d/c need to taper
What can tramadol induce?
serotonin syndrome w SSRI, Tricyclic antidepressants, MAOI, SNRIs, triptans, linezolid
What is the max dose/day for tramadol?
400mg
What threshold does tramadol lower?
seizure threshold, not for pts w seizure disorder
What is rheumatoid arthritis?
chronic autoimmune inflammatory disease characterized by symmetric polyarthritis, joint changes, including erythema, effusion, & tenderness. Pain worse in AM, gets better after warming up
How are ppl dx w RA?
ACR/EULAR criteria score >6: based on how many joints involved, serology of RF or ACPA, abnormal CRP or ESR, duration > 6 weeks
What are some non-Rx therapy for RA?
PT/OT, warm showers, paraffin tx, hydrotherapy, hot/cold packs