URTI & Analgesics Flashcards
What are the morphine-like opioid Rxs?
- morphine
- codeine
- levorphanol
- hydromorphone (Dilaudid)
- hydrocodone
- oxymorphone
- oxycodone
What are 3 important Rx interaction risks r/t opioids?
- CNS depressant rxns
- ↑ resp depression and sedation
- antihist, sedatives, anxiolytics
- ↑ resp depression and sedation
- Anti-Ach
- ↑ constipation and urinary retention
- antipsychotics
- antidepressants
- ↑ constipation and urinary retention
- Hypotensive agents
- ↓ BP
How is chronic opioid related constipation treated?
- laxatives - should be first line and started w/ chronic opioids
- stool softners and osmotics
- naloxegol (PO forms) and naldemedine (IV only)
- peripheral mu receptor antagonists
- monitor for opioid withdrawal
- Do come with ADRs
- ABD pain, diarrhea, flatulence, HA
What are the 1st Generation NSAIDs?
- Ibuprofen
- Ketoprofen
- Naproxen
- Indomethacin
- Diclofenac
- Ketorolac
- Etodolac
What is the 1st line ABX to treat acute OM?
- amoxicillin 80-90 mg/kg/day divided q 12 hours
- “high dose” amoxicillin
- ↑ concent in middle ear
- ↓ failure d/t S. pneumoniae
What is Tolerance?
A state where larger dose req’d → the same response that could formerly be elicited by a smaller dose
What types of opioid analgesics are there and what is the general MoA?
- Types - agonists, partial agonists and antagonists
- Binds to opiate receptor altering perception and response to pain
What symptom criteria would justify the use of ABX on Pt with diagnosed sinusitis?
- ≥ 2 major Sx
- OR
- 1 major Sx and > 2 minor Sx
What is the Rx morphine and when is it used?
- prototype opioid analgesic that is a natural substance isolated from the opium plant
- first line agent to treat moderate to severe pain
How is chronic sinusitis different from acute sinusitis and what is different for treatment?
- chronic sinusitis is essentially acute sinusitis plus…
- fungus
- staph aureus
- other Gm (-)’s
- ↑ inflammatory response
- refer to ENT specialist usually
What are 4 different general effects seen when using simple analgesics?
- Analgesic
- Anti-inflammatory
- Antipyretic
- Anti-platelet
How does acute OM present?
- ear pain
- redness of TM
- middle ear fluid
- can persist ≤ 3 months after episode
- fever, lethargy, and irritability
What does COX 1 and 2 effect peripherally?
- COX 1 → PTG production → GI protection, Renal perfusion, PLT aggregation
- COX 2 → PTG production → inflammation, swelling pain
What is oxycodone (Oxycontin) and how is it used?
- mophine-like opioid for treatment of mod to severe pain
- 2/3 potency of morphine
- PO only w/ IR and SR formulations
- Available as combo with ASA, APAP, and ibuprofen
What are the risks for resistances for sinusitis antimicrobial treatment algorithm?
- Age < 2 or > 65, daycare
- prior ABX w/in last month
- prior hospitalization in last 5 days
- co-occurring conditions / comorbidities
- immunocompromised
What are the typical causes of acute sinusitis?
- Viral - may be ≤ 50%
- Bacterial causes
- S. pneumoniae
- H. inflenzae
- M. catarrhalis
- Anaerobes
What is one other very common opioid related ADRs that improves after some days of use?
- drowsiness and sedation
- usually better after 5-7 days
- diff lvls of sedation with each opioid
- need to monitor
What is treatment based on for acute OM and what are the general treatments for each group?
- Age and severity of Sx
- < 6 mo → ABX
- 6 mo - 2 yrs
- ABX if severe or certain Dx
- optional observation if non-severe
- ≥ 2 yrs
- ABX if severe
- optional observation for non-severe
What is the most common chronic opioid related ADR and what is unique about it?
- Constipation
- tolerance will Ø develop
- ADR differs by agent
Do non-salicylatated NSAIDs have any anti-platelet ability?
- Yes, they also bind to COX 1
- Bind reversibly and PLT fxn returns after d/c Rx use
What is acute otitis media (OM) and how is it different from OM w/ effusion?
- Fluid and inflammation in middle ear w/ pain
- Ø really illness signs or inflammation in OM w/ effusion
What are the 2nd Generation NSAIDs and what do they do?
- Selective COX-2 inhibitors
- Celecoxib
- only COX-2 inhibitor on US market
- Meloxicam
- partially selective COX-2 inhibitor
What is opioid related N/V and how is it treated?
- N/V stimulated by opioids triggering chemoreceptor zones
- Occurs at start of therapy or with ↑ dose
- tolerance develops in 7-10 days
- Treated with hydroxyzine or ondansetron
What is Dependence?
A state where a withdrawal synd will occur if Rx stopped or dose rapidly ↓
- physical and/or mental
What are the risk factors for developing acute OM?
- formula fed infants
- male
- winter season
- daycare
What are the initial empiric first line Rxs treatment of acute sinusitis?
- Amoxicillin-clavulanate 500/125 mg PO TID, or
- Amoxicillin-clavulanate 875/125 mg PO BID
What benefits and additional risks are associated with COX-2 inhibitors?
-
Benefits
- GI mucosa protective effects and ↓ renal impact
-
Risks
- ↑ risk of adverse cardiac events and death
What are four main issues with the numeric pain intensity scale?
- Ø rate past pain
- Numbers not quantifiable measure
- cannot be used from person to person
- patient pain control expectations
- Ø conceptualize pain > already experience
What ABX is used if a PCN allergy is present when treating acute OM?
- TMP-SMX
- macrolides
What are some complications of strep throat?
- Scarlet Fever
- throat abscesses
- bacteremia
- Rheumatic fever
- post-streptococcal glomerulonephritis
What is neuropathic pain?
Pain caused by peripheral nerve injury rather than direct stimulation of pain receptors
What are the causes of pharyngitis?
- Most caused by viruses
- Most common bacteria causes:
- Group A strep - S. pyogenes “strep throat”
- less common in kids < 5 y.o.
Why are opioids often paired with non-opioid analgesics?
- opioid sparring
- reduce amount of opioid needed to achieve analgesic effect by using a phramacodynamic Rx-Rx interaction
After the 1st or 2nd line antimicrobial therapies in the treatment algorithm for sinusitis, what are the next steps if improvement is seen in the last 3-5 days?
- Complete 5-7 days of ABX therapy
What is the definition of ‘pain’?
A subjective unpleasant sensory and emotional experience that usually is associated with structural or tissue damage
What is MoA of ASA?
- Inhibits cyclooxygenase (COX) → Ø PTG production
- Both COX 1 & 2 and centrally and peripherally
- Inhibits platelet COX → Ø thromboxane A2 formation
- Ø bind to another PLT for entire life of PLT
What is Addiction?
A Dz manifested by compulsive substance use despite harmful consequences.
- Char by both tolerance and dependence
What are the meperidine-like opioid Rxs?
- meperidine (Demerol)
- fentanyl
- remifentanyl
- sufentanil
- alfentanil
What are 4 different opioid/non-opioid combos available?
- codeine/APAP
- hydrocodone/APAP
- hydrocodone/ibuprofen
- hydrocodone/ASA
Is aspirin an NSAID?
- It is Ø a steroid and is antiinflammatory but Ø a true NSAID
- Ø = NSAID b/c it’s a salicylatated NSAID
- Acetysalicylic acid (ASA)
What are the 3 initial signs and Sx critera in the antimicrobial treatment algorithm for sinusitis?
-
Either:
- persistent and not improving Sx (≥ 10 days);
- severe Sx (≥ 3-4 days); or
- worsening or “double-sickening” (≥ 3-4 days)