Acute Pain & Opioid-Free Analgesia (Cornelius) Exam II Flashcards
Which of the following best describes the function of acute pain?
A) A long-lasting pain meant to promote healing.
B) A direct stimulation of pain fibers that precedes potential tissue damage as a warning.
C) A direct response triggered by psychological factors only.
D) A type of chronic pain without a specific stimulus.
B) A direct stimulation of pain fibers that precedes potential tissue damage as a warning.
There is a close relationship between the intensity of the stimulus, the discharges in the primary afferents, and the subjective expression of pain.
Slide 3
Acute pain has been shown to affect which of the following systems? (Select 3)
A) Cardiac
B) Pulmonary
C) Immune
D) Integumentary
A) Cardiac - heart rate goes up.
B) Pulmonary -they may breathe faster.
C) Immune
Slide 3
Acute pain may lead to alterations in which of the following systems? (Select 3)
A) Endocrine
B) GI/GU
C) Coagulation pathways
D) Skeletal muscle function
A) Endocrine - things kind of get out of whack from a glycemic standpoint. Blood sugar may go up or go down.
B) GI/GU
C) Coagulation pathways
Slide 3
Which of the following is an example of somatic superficial pain?
A) Expanding bowel gas
B) Accidental knife cut to the finger
C) Pain radiating to the left shoulder due to cardiac ischemia
D) Acute appendicitis
B) Accidental knife cut to the finger
slide 4
Somatic acute pain that originates from skin, subcutaneous tissues, or mucous membranes is known as __________ pain.
A) Deep
B) Superficial
C) Parietal
D) Referred
B) Superficial
Which of the following is an example of parietal pain?
A) Pain due to appendicitis
B) Pain due to muscle strain
C) Pain from a skin abrasion
D) Pain in tendons
A) Pain due to appendicitis
Localized around an organ; Sharp and stabby ⚡️⚡️⚡️⚡️⚡️
slide 4
Which of the following are types of somatic pain? (Select 2)
A) Pain from a skin abrasion
B) Pain from a tendon injury
C) Pain from myocardial ischemia
D) Pain from peritoneal irritation
A) Superficial pain from a skin abrasion
B) Deep pain from a tendon injury - can also be from muscles, joints and bone
Slide 4
Visceral pain can include which of the following characteristics? (Select 3)
A) Referred pain to cutaneous areas
B) Localized parietal pain
C) Deep pain from muscles and joints
D) Pain due to expanding bowel gas
A) Referred pain to cutaneous areas
B) Localized parietal pain,
D) Pain due to expanding bowel gas
slide 4
Which of the following best defines referred pain ?
A) Pain localized to the area directly affected by tissue damage.
B) Pain that originates from the skin, muscles, or joints and is easily localized.
C) Pain that is felt in a location distant from the actual source of the pain
D) Pain that results only from organ damage and is sharp and well-defined.
C) Pain that is felt in a location distant from the actual source of the pain due to the convergence of visceral and somatic afferent input in the central nervous system (CNS).
Slide 4
One of the key goals in pain management, especially for an intubated patient is:
A) Reducing the need for oxygen therapy
B) Controlling anxiety and agitation
C) Enhancing motor function
D) Improving gastrointestinal motility
B) Controlling anxiety and agitation
slide 5
Which of the following are goals of pain control? (Select 2)
A) Attenuation of adverse physiologic responses
B) Prevention of chronic pain syndromes
C) Increased blood glucose regulation
D) Allowing anxiety and agitation
A) Attenuation of adverse physiologic responses
B) Prevention of chronic pain syndromes,
Overall Patient Comfort 🩵
Overall Patient Comfort 🩵
slide 5
Which of the following is a key component of achieving optimal pain control goals according to the slide?
A) Reactive analgesia
B) Preemptive and preventative analgesia
C) Postoperative analgesia only
D) Single-modality approach
B) Preemptive and preventative analgesia
C - if we’re able to control the pain before it happens, you don’t have quite the same risk of the agitation, the sympathetic responses, the development of chronic pain syndromes.
slide 6
Which of the following strategies is becoming more common in modern pain management?
A) Increasing opioid usage
B) Reducing all analgesic usage
C) Opioid-free anesthesia
D) Solely using NSAIDs for pain management
C) Opioid-free anesthesia
Slide 6
The multimodal approach to pain control involves:
A) Using a single analgesic to target all receptors
B) Utilizing various analgesics to target multiple pain pathways
C) Decrease number of receptors
D) Administering pain medications only after surgery
B) Utilizing various analgesics to target multiple pain pathways
Corny - multimodal approach to do that and hitting as many receptors as possible, but with that in mind, you really have to target your analgesic plan to the patient.
Slide 6
Which of the following correctly describes the progression of pain phases?
A) Neuropathic pain → Acute pain → Chronic nociceptive pain
B) Acute pain → Chronic nociceptive pain → Neuropathic pain
C) Chronic nociceptive pain → Acute pain → Neuropathic pain
D) Acute pain → Neuropathic pain → Chronic nociceptive pain
B) *Transient *Acute pain → Chronic nociceptive pain → Neuropathic pain
C - Now you can have patients that start off with essentially neuropathic pain. Think about somebody with diabetic neuropathy.
They may never really have an acute pain phase because they don’t have adequate sensation.
So with those patients, neuropathic pain may be their start.
Slide7
True or False
Pain is not exclusive - at anytime, several of the underlying mechanisms may coexist in the same individual
True
Slide 7
Which of the following disease states are commonly associated with pain?
A) Degenerative joint disease
B) Diabetes mellitus
C) Polymyalgia rheumatica
D) Wounds
E) End of Life
F) All of the above
G) None of the Above
H) A, B, & C
I) C, D, and E
F) All of the above
Slide 8
Which of the following can cause pain related to immobility? (Select 4)
A) Surgery
B) Dementia
C) Fractures
D) Finger cut
E) PVD
A) Surgery
B) Dementia
C) Fractures
E) PVD - Peripheral vascular disease
slide 9
Which of the following strategies can help alleviate pain caused by immobility? (Select 2)
A) Mobilizing the patient early post-surgery
B) Using opioid-free anesthesia
C) Encouraging physical therapy and movement
D) Increasing bed rest to prevent pain
A) Mobilizing the patient early post-surgery,
C) Encouraging physical therapy and movement
Slide 9
Which of the following is NOT considered a red flag in pain management?
A) Pain that wakes the patient up
B) Severe or progressive neurologic deficit
C) Pain relieved by rest
D) Constitutional symptoms
C) Pain relieved by rest
Slide 10
Which of the following signs in a patient with pain would indicate a potential Red Flag?
Select 3
A) Severe pain with immunosuppression
B) Pain accompanied by a cold, pale limb
C) Pain that gradually decreases over time
D) Severe abdominal pain with hypotension and fever
A) Severe pain with immunosuppression
B) Pain accompanied by a cold, pale limb
D) Severe abdominal pain with hypotension and fever
Cornelius - Pain to the point where it’s causing immunosuppression, oftentimes with malignancy will see that patients develop severe pain as their presentation and then they go in and they’ve got something like osteosarcoma.
slide 10
Which of the following describes a constitutional symptom that would be considered a red flag in pain management?
A) Back pain that resolves with rest
B) Chronic back pain that improves with NSAIDs
C) Acute back pain followed by loss of balance and new onset of incontinence
D) Pain localized to the joints after activity
C) Acute back pain followed by loss of balance and new onset of incontinence
Corn - Constitutional symptoms - So maybe they have back pain and it’s a chronic condition, maybe it’s acute back pain. You fall and you’re doing OK, but the next day you wake up in your incontinence.
That’s a huge red flag.
Slide 10
Matching!
Match the system with the consequences of poorly managed acute pain
Cardiovascular → Tachycardia, hypertension, and increase in cardiac workload
Pulmonary → Respiratory muscle spasm (splinting), decrease in vital capacity, atelectasis, hypoxia, and increased risk of pulmonary infection
Gastrointestinal → Postoperative ileus
Renal → Increased risk of oliguria and urinary retention
Coagulation → Increased risk of thromboemboli
Immunologic → Impaired immune function
Muscular → Muscle weakness and fatigue; limited mobility can increase the risk of thromboembolism
Psychological → Anxiety, fear, and frustration resulting in poor patient satisfaction
Slide 11
In a patient with a history of coronary artery disease (CAD) and uncontrolled pain, which of the following could result from tachycardia and increased cardiac workload?
A) Arrhythmias
B) Demand ischemia
C) Pulmonary edema
D) Stroke
B) Demand ischemia
Slide 11
What complication may develop in a patient with rib fractures and inadequate pain control due to decreased respiratory effort?
A) Pneumonia
B) Pleural effusion
C) Cardiac tamponade
D) Hemothorax
A) Pneumonia
Slide 11
In a post-abdominal surgery patient receiving large doses of opioids for pain management, what complication might arise due to slowed gastrointestinal function?
A) Bowel perforation
B) Intestinal obstruction
C) Postoperative ileus
D) Gastric ulcer
C) Postoperative ileus
Slide 11
Who proposed the Specificity Theory of Pain?
A) Sigmund Freud
B) Charles Darwin
C) Rene Descartes
D) Immanuel Kant
C) Rene Descartes
This guy
Slide 12
According to the Specificity Theory, the intensity of pain is directly related to:
A) The emotional response to pain
B) The amount and degree of tissue injury
C) The duration of the painful stimulus
D) The individual’s pain threshold
B) The amount and degree of tissue injury
C - if you hit your finger with a hammer versus a small needle, the pain you experience will be different in its intensity and is probably indicative of potential tissue damage
it doesn’t include other senses, you have to involve other senses like see feeling and those may impact things
Slide 12
One criticism of the Specificity Theory is that it overreacts to pain in cases where there is little tissue damage but the injury appears __________.
A) Insignificant
B) Severe
C) Superficial
D) Psychological
B) Severe
Slide 12
According to the Intensity Theory of Pain, which philosopher first conceptualized pain as an emotional experience rather than a sensory one?
A) Aristotle
B) Descartes
C) Plato
D) Socrates
C) Plato
The dude
Slide 13
The Intensity Theory of Pain views pain primarily as a(n) __________ experience, rather than a sensory one.
A) Physical
B) Emotional
C) Mechanical
D) Psychological
B) Emotional
Slide 13
Who proposed the Gate Control Theory of Pain in 1965?
A) Rene Descartes and Sigmund Freud
B) Ronald Melzack and Patrick Wall
C) Charles Darwin and Immanuel Kant
D) Plato and Aristotle
B) Ronald Melzack and Patrick Wall
this theory is the best one we have right now. it was the first cohesive explanation for the emerging complexities of pain phenomena, particularly chronic pain.
These old guys
Slide 14
According to the Gate Control Theory, pain transmission is modulated by impulses transmitted to the spinal cord and regulated by ________ .
A) Chemical neurotransmitters
B) Gate mechanisms
C) Electrical impulses
D) Hormonal signals
B) Gate mechanisms
Slide 14
According to the Gate Control Theory, where are the “gates” that regulate pain transmission located?
A) Cerebral cortex
B) Brainstem
C) Substantia gelatinosa of the spinal cord
D) Peripheral nerves
C) Substantia gelatinosa of the spinal cord
The cells in this area functions as a gate regulating transmission of impulses to the central nervous system.
slide 14
According to the Gate Control Theory, pain perception can be influenced by psychological factors such as __________, which may amplify or diminish the pain experience.
A) Hormones
B) Nutrient intake
C) Immune response
D) Past experiences
D) Past experiences
Slide 14
What types of tissue damage activate nociceptors in the body?
Select 3
A) Thermal
B) Mechanical
C) Electrical
D) Chemical
A) Thermal
B) Mechanical
D) Chemical
Slide 15
Which of the following fibers are responsible for transmitting pain signals from nociceptors?
Select 2
A) Myelinated Alpha-β
B) Myelinated Alpha-δ
C) Unmyelinated Delta fibers
D) Unmyelinated Gamma fibers
E) Unmyelinated C fibers
B) Myelinated Alpha-δ
E) Unmyelinated C fibers
**free afferent nerve endings **
Slide 15
Which of the following are inflammatory mediators released with histamine during tissue injury?
Select 3
A) Bradykinin
B) Prostaglandins
C) Acetylcholine
D) Serotonin
A) Bradykinin (peptides)
B) Prostaglandins (lipids)
D) Serotonin (neurotransmitters)
Slide 15
First-order neurons transmit pain signals from which location to the spinal cord?
A) The thalamus
B) The periphery
C) The brainstem
D) The somatosensory cortex
B) The periphery
Slide 16
Second-order neurons transmit pain signals from the spinal cord to the:
A) Somatosensory cortex
B) Brainstem
C) Thalamus
D) Cerebellum
C) Thalamus
Slide 16
Third-order neurons transmit pain signals from the thalamus to the __________, where the final processing of pain occurs.
A) Brainstem
B) Cerebellum
C) Somatosensory cortex
D) Spinal cord
C) Somatosensory cortex
First-order neurons receive pain signals in the periphery tissue receptors of the skin and the proprioceptors which are located in:
Select 3
A) Muscles
B) Joints
C) Thalamus
D) Tendons
E) Fascia
A) Muscles
B) Joints
D) Tendons
Slide 17
Where do the first-order neurons synapse with the second-order neurons in the pain pathway?
A. Thalamus
B. Somatosensory cortex
C. Dorsal horn of the spinal cord
D. Brainstem
C. Dorsal horn of the spinal cord
Side 18
After synapsing with the first-order neurons, where do the second-order neurons cross to in the pain pathway?
A. Ipsilateral side of the spinal cord
B. Contralateral side of the spinal cord
C. Anterior side of the spinal cord
D. Ventral side of the spinal cord
B. Contralateral side of the spinal cord
Slide 18
The second-order neurons ascend to the thalamus via which of the following tracts?
A. Spinothalamic tracts
B. Corticospinal tracts
C. Dorsal column tracts
D. Reticulospinal tracts
B. Spinothalamic tracts
Slide 18
Through which structure do third-order neurons project to the postcentral gyrus of the cerebral cortex?
A. Corpus callosum
B. Internal capsule
C. Spinal tract
D. Limbic system
B. Internal capsule
Slide 19
The ________ fibers are small, unmyelinated and conduct pain signals at a slow velocity, while the _______ fibers are large, myelinated and transmit pain signals rapidly.
A) C fibers; A-delta fibers
B) A-beta fibers; A-delta fibers
C) C fibers; A-beta fibers
D) A-beta fibers; Delta Fibers
A) C fibers; A-delta fibers
Slide 20
Matching
Match the Four elements of Pain Processing to their definitions
Transduction: 1
Transmission: 3
Modulation: 4
Perception: 2
Slide 21
What is the definition of Allodynia?
A. Exaggerated response to a painful stimulus
B. Pain caused by a stimulus that normally provokes pain
C. Numbness or no pain from an affected area
D. Dull, aching pain
E. Pain caused by a stimulus that does not normally provoke pain
E. Pain caused by a stimulus that does not normally provoke pain
Slide 22
Which of the following describes Hyperalgesia?
A. Pain caused by a light touch
B. Exaggerated response to a painful stimulus
C. No pain response from the affected area
D. Numbness in the affected area
B. Exaggerated response to a painful stimulus
Slide 22
What is the primary mechanism of hyperalgesia?
A. Decreased sensitivity to painful stimuli
B. Augmented sensitivity to painful stimuli
C. Allodynia misinterpretation of non-painful stimuli as painful
D. Both B and C
E. Both A and C
F. All of the above
G. None of the above
D. Both B and C
Tissue trauma releases local inflammatory mediators that can produce augmented sensitivity to stimuli.
Slide 23
Which neurotransmitter is involved in secondary hyperalgesia by increasing excitablility of neurons and activating NMDA receptors?
A. Dopamine
B. Glutamate
C. Serotonin
D. Acetylcholine
B. Glutamate
Slide 23
What medication is commonly associated with causing hyperalgesia?
A. Fentanyl
B. Oxycodone
C. Morphine
D. Ketamine
E. Remifentanil
E. Remifentanil
Slide 23
Which medication is recommended to be used alongside remifentanil to prevent hyperalgesia?
A. Acetaminophen
B. Midazolam
C. Ketamine
D. Propofol
C. Ketamine
Slide 23
What is central hypersensitivity most associated with?
A) Increased tissue damage
B) Exaggerated pain responses
C) Reduced pain sensitivity
D) Increased nerve regeneration
B) Exaggerated pain responses
Slide 24
In the context of pain sensitization, which condition follows hyperalgesia on the stimulus intensity-pain intensity curve?
A) Normal pain response
B) Hyperesthesia
C) Neuropathy
D) Allodynia
D) Allodynia
C - if you’ve got a patient with a normal pain response, look at how they shift to hyperlgesia and then to allodyni and a chronic pain state.
Slide 24
Central hypersensitivity can cause pain in response to what type of stimuli?
A) Normal and minimal sensory stimuli
B) Only severe nociceptive stimuli
C) Deep tissue injury only
D) Minimal only sensory stimuli
A) Normal and minimal sensory stimuli
Slide 24
What is a hallmark ‘negative’ symptom of neuropathy resulting from complete denervation of a body part?
A) Burning sensation
B) Shooting pain
C) Numbness
D) Tingling sensation
C) Numbness
C -* it may also result in pain depending on how severe the denervation is for those patients. *
Slide 25
In addition to ‘negative’ symptoms, nerve trauma and disease are also associated with what type of symptoms?
A) Positive symptoms
B) Increased mobility
C) Loss of sensation only
D) Decreased pain perception
A) Positive symptoms
Slide 25
What effect does aging have on gastric acid secretion in the elderly?
a) Increases gastric acid secretion, decreased gastric pH
b) Decreases gastric acid secretion, elevating gastric pH
c) Has minimal effect on gastric acid secretion
d) Increases gastric acid, increases gastric pH
b) Decreases gastric acid secretion, elevating gastric pH
Increased use of medications alter pH
Slide 27
Absorption
What is the overall effect of aging on drug absorption?
a) Significant reduction in absorption
b) Increased absorption due to slower metabolism
c) Minimal effect on drug absorption
d) Complete inhibition of absorption
c) Minimal effect on drug absorption
Slide 27
Absorption
______ refers to the process where drugs are metabolized in the liver before reaching systemic circulation, which can be reduced in the elderly.
a) First-pass metabolism
b) Bioavailability
c) Active transport
d) Passive diffusion
a) First-pass metabolism
Slide 27
Distribution
Which of the following statements are true regarding protein binding in elderly patients?
Select 2
a) Low albumin levels can lead to more free drug in circulation.
b) Highly protein-bound drugs are less affected by first-pass metabolism.
c) Malnourished patients may require albumin administration to improve drug effectiveness.
d) Changes in albumin levels do not affect wound healing.
a) Low albumin levels can lead to more free drug in circulation
c) Malnourished patients may require albumin administration to improve drug effectiveness
Slide 28
Distribution
Whic factor does not affect drug binding and distribution in elderly patients?
a) Molecular size
b) Protein binding
c) pH levels
d) Lipid solubility
e) Enzyme activity
e) Enzyme activity
Proportion relates the amount of drug in the body to the concentration measured in biological fluid
- Protein binding
- pH
- Molecular size
- Water
- Lipid solubility
Slie 28
Distribution
As patients age, their ____ mass decreases, which affects drug distribution.
a) Fat
b) Muscle
c) Bone
d) Liver
b) Muscle
Slide 29
Distribution
Which factors influence the distribution of drugs in elderly patients?
Select 3
a) Total body water decreases
b) Muscle mass increases
c) Proportion of body fat increases
d) Albumin levels decrease
e) Total body water increases
a) Total body water decreases, affecting water-soluble drugs,
c) Proportion of body fat increases, affecting lipid-soluble drugs
d) Albumin levels decrease, affecting protein-bound drugs
Slide 29
Metabolism
The ______ is the primary organ responsible for converting substances that are potentially harmful into forms that can easily be eliminated by the body.
a) Kidney
b) Heart
c) Liver
d) Lungs
c) Liver
Slide 30
Metabolism
As patients age, hepatic blood flow ______, which affects the metabolism of drugs.
a) Increases
b) Decreases
c) Stays the same
d) Does not affect drug metabolism
b) Decreases
Slide 30
Metabolism
Aging is associated with a ____ in liver mass and intrinsic metabolic activity, impacting drug metabolism.
a) Increase
b) Decrease
c) No change
d) Fluctuation
b) Decrease
Slide 30
Excretion/Elimination
The ______ is the primary organ responsible for the excretion and elimination of substances from the body.
a) Liver
b) Heart
c) Kidney
d) Lungs
c) Kidney
S - 31
Excretion/Elimination
A significant change in kidney function with aging is a reduction in ______, which impacts the body’s ability to eliminate substances. Select 2 that apply.
a) Blood pressure
b) Blood flow
c) Glomerular filtration rate
d) Heart rate
b) blood flow
c) Glomerular filtration rate (considered one of the most important changes with aging)
Slide 31
Excretion/Elimination
Aging results in a decrease in kidney blood flow, mass and ______, which are essential for filtration and excretion.
a) Number of blood platelets
b) Muscle fibers
c) Number of red blood cells
d) Number of functioning nephrons
d) Number of functioning nephrons
S - 31
The first step on the WHO Pain Relief Ladder recommends the use of _____ for pain persisting or increasing.
A. Opioids
B. Non-opioids
C. Corticosteroids
D. Neuromodulators
B. Non-opioids
C - first is non opioid medications.
So we use lots of NSAIDs at this point, and you can also think about kind of adjuvant therapy for these people, things like physical therapy braces, Heat, cold, movement.
Slide 32
When pain persists after non-opioid treatment, the second step of the WHO Pain Relief Ladder involves the addition of _____.
A. Mild to moderate opioids
B. Surgery
C. Non-pharmacological therapy only
D. Strong opioids
A. Mild to moderate opioids
C - we may then consider opioid therapy, but we usually go ahead and consider whatever non opioid therapy we’re using as well as the adjuvant therapy.
Slide 32
At the final step of the WHO Pain Relief Ladder, opioids for _____ pain are recommended alongside non-opioid therapies.
A. Mild
B. Moderate to severe
C. Minimal
D. Chronic only
B. Moderate to severe
Slide 32
Which of the following statements apply to non-opioid analgesics?
Select 2
A. They have anti-inflammatory effects.
B. They act centrally.
C. They are not controlled drugs.
D. They cause sedation and respiratory depression.
A. They have anti-inflammatory effects.
C. They are not controlled drugs.
Slide 33
What are some characteristics of opioid analgesics?
select 2
A. No ceiling effects
B. Anti-inflammatory effects
C. No adverse effects
D. Schedule II or III controlled drugs
A. No ceiling effects
D. Schedule II or III controlled drugs
Slide 33
Opioid (narcotic) analgesics:
A. Act peripherally
B. Are not habit-forming
C. Act centrally
D. Have ceiling effects
C. Act centrally
Slide 33
Non-opioid (non-narcotic) analgesics:
A. Have no anti-inflammatory effects
B. Are controlled substances
C. Act centrally
D. Act peripherally
D. Act peripherally
Slide 33
Which of the following are adverse effects of opioid analgesics?
Select 3
A. Sedation
B. Respiratory depression
C. Gastric irritation
D. Constipation
E. Bleeding
A. Sedation
B. Respiratory depression
D. Constipation
Slide 33
Which of the following adverse effects are associated with non-opioid analgesics?
Select 3
A. Renal toxicity
B. Sedation
C. Gastric irritation
D. Bleeding
E. Respiratory depression
A. Renal toxicity
C. Gastric irritation
D. Bleeding
Slide 33
True or False
For non-opioids, increasing the dose increases the analgesia but also increases side effects
FALSE
Ceiling effects:
For non-opiods, increasing the dose doesn’t increase the analgesia but it does increases side effects
Slide 33
Matching!
Match the receptor with its effects
Slide 34
True or False
The Mu (μ) receptor is the most common one we see with it’s effects, especially that kinda high feeling
TRUE
Cornelius - Mu is probably one of the most common ones that we see, and that’s really what results in the analgesia, but it also results in a lot of our complications. That’s where the respiratory depression comes from, the decrease in GI motility. That kinda high feeling.
Slide 34
Which of the following is NOT a function of opioids?
a) Reducing the perception of pain
b) Acting directly on the CNS
c) Treating the underlying cause of pain
d) Binding to opioid receptors
c) Treating the underlying cause of pain
Slide 35
What is the alternate name for codeine?
a) 3-Hydroxycodeine
b) 3-Methoxymorphine
c) 3-Methylcodeine
d) 3-Ethoxymorphine
b) 3-Methoxymorphine
derived from opium poppy the substitution for a methyl group for a hydroxyl group on the #3 carbon of morphine molecule
Slide 39
Which of the following is a benefit of codeine compared to morphine?
a) Codeine is more potent when given orally
b) Codeine is less addictive when absorbed orally
c) Codeine is more reliably absorbed orally
d) Codeine has fewer side effects when given IV
c) Codeine is more reliably absorbed orally
Slide 39
Codeine is commonly co-administered with which of the following medications?
a) Aspirin
b) Ibuprofen
c) Acetaminophen
d) Naproxen
c) Acetaminophen
dosing really varies between the Tylenol #3 and the Tylenol #4.
Slide 39
Codeine is metabolized by the P450 enzyme ________ which demethylates 10% of it into morphine in the liver?
a) CYP2C9
b) CYP3A4
c) CYP2D6
d) CYP1A2
c) CYP2D6
Slide 40
What happens to the remainder of the codeine dose that is not metabolized to morphine?
a) It is excreted unchanged
b) It is demethylated to inactive norcodeine by CYP3A4
c) It is metabolized into another active opioid
d) It is metabolized into an active analgesic
b) It is demethylated to inactive norcodeine by CYP3A4
Slide 40
Which of the following are true regarding codeine metabolism?
Select 2
a) 10% of the population is resistant to codeine’s analgesic effect
b) Children under 12 have mature CYP2D6 enzyme activity
c) Codeine metabolism involves more than 50 polymorphisms leading to variability in analgesia
d) All administered codeine is converted into morphine
a) 10% of the population is resistant to codeine’s analgesic effect
c) Codeine metabolism involves more than 50 polymorphisms leading to variability in analgesia
Slide 40
Which population is at risk of experiencing side effects from codeine without receiving adequate analgesia?
a) Adults over 65
b) Children under 12
c) Patients with liver disease
d) Pregnant women
b) Children under 12
slide 40
What is the typical adult dosing range for codeine?
a) 5-30 mg every 2 hours
b) 10-40 mg every 6 hours
c) 15-60 mg every 4 hours
d) 20-80 mg every 8 hours
c) 15-60 mg every 4 hours
Cornelius - If its Tylenol #3, it’s 30mg. For Tylenol #4, it’s 60mg
60mg is equivalent to 650mg of Aspirin
Slide 41
What is the maximum daily dose of codeine for adults?
a) 300 mg/day
b) 200 mg/day
c) 360 mg/day
d) 400 mg/day
c) 360 mg/day
Slide 41
What is the pediatric dosing range for codeine?
a) 1-2 mg/kg/dose
b) 0.5-1 mg/kg/dose
c) 2-4 mg/kg/dose
d) 0.2-0.4 mg/kg/dose
b) 0.5-1 mg/kg/dose
60mg max per day
Slide 41