Pain Mgmt RN key terms
Pain Mgmt RN · Get comfortable with the vocabulary.
- Nociception
- Related: Nociceptive pain, Neuropathic pain, Central sensitization
The nervous system's process of detecting and transmitting signals from tissue damage or potential damage through sensory nerves, spinal cord pathways, and the brain, where the sensation becomes conscious pain.
- Nociceptive pain
- Related: Nociception, Multimodal analgesia
Pain arising from actual or threatened damage to body tissues outside the nervous system, such as muscles, joints, skin, or organs; usually described as aching, throbbing, or cramping and often responsive to standard analgesics.
- Neuropathic pain
- Related: Adjuvant analgesic, Allodynia, Central sensitization
Pain caused by injury or malfunction of the nervous system itself, as in diabetes, shingles, stroke, or nerve compression; often described as burning, shooting, electric, or tingling and may respond poorly to ordinary analgesics.
- Central sensitization
- Related: Hyperalgesia, Allodynia, Opioid-induced hyperalgesia
Increased excitability of neurons in the spinal cord and brain after repeated or intense pain signals, so pain is amplified and ordinary stimuli become painful; it underlies many persistent pain conditions.
- Hyperalgesia
- Related: Central sensitization, Allodynia
An exaggerated pain response to a stimulus that normally causes only mild pain, reflecting heightened nervous system sensitivity; it can signal central sensitization or opioid-induced hyperalgesia.
- Allodynia
- Related: Hyperalgesia, Neuropathic pain
Pain produced by a stimulus that is not normally painful, such as light touch, a bedsheet, or cool air on the skin; a hallmark of neuropathic and centrally sensitized pain states.
- Phantom limb pain
- Related: Mirror therapy, Neuropathic pain
Painful sensations felt in a body part that has been amputated, arising from nervous system reorganization rather than the missing tissue; it may be burning, cramping, or shooting and often needs specialized treatment.
- Numeric Rating Scale
- Related: PAINAD, Breakthrough pain
A pain screening tool in which the patient rates pain intensity from 0, meaning no pain, to 10, meaning the worst pain imaginable; practical for adults and older children who can report numbers.
- Multimodal analgesia
- Related: Adjuvant analgesic, Patient-controlled analgesia, Preemptive analgesia
Using two or more analgesic drugs or techniques with different mechanisms together, so each dose can be lower and side effects are reduced while relief improves; the standard for postoperative and acute pain.
- Opioid tolerance
- Related: Opioid-induced hyperalgesia, Opioid use disorder, Equianalgesic dose
A state in which repeated opioid exposure reduces response, so a higher dose is needed for the same effect; it is expected in long-term opioid therapy and is not the same as addiction.
- Opioid-induced hyperalgesia
- Related: Opioid tolerance, Hyperalgesia
A paradoxical state in which opioid use makes a person more sensitive to pain rather than less, with pain spreading or worsening despite escalating doses; it requires careful assessment and differs from tolerance or withdrawal.
- Opioid-induced respiratory depression
- Related: Naloxone, Patient-controlled analgesia, Procedural sedation and analgesia
The most dangerous opioid side effect, in which opioids blunt the brain's drive to breathe, producing slow or shallow respirations, low oxygen, sedation, and possible death; risk rises with dose and combined sedatives.
- Equianalgesic dose
- Related: Opioid tolerance, Breakthrough pain
The dose of one analgesic that produces roughly the same pain relief as a given dose of another, used when converting between opioids or routes to protect patients from overdose or withdrawal.
- Naloxone
- Related: Opioid-induced respiratory depression
An opioid antagonist that quickly reverses opioid effects, including respiratory depression, by blocking opioid receptors; it does not reverse non-opioid sedation and may precipitate withdrawal in opioid-dependent patients.
- Adjuvant analgesic
- Related: Neuropathic pain, Multimodal analgesia
A drug whose main purpose is not pain relief but that helps certain pain types, such as antidepressants or anticonvulsants for nerve pain or corticosteroids for swelling; often combined with standard analgesics.
- Serotonin syndrome
- Related: Adjuvant analgesic
A potentially life-threatening buildup of serotonin, usually from combining serotonergic drugs such as some antidepressants, tramadol, or triptans, causing agitation, tremor, fever, and rapid heart rate; report immediately.
- Acetaminophen maximum daily dose
- Related: Multimodal analgesia
The upper limit of acetaminophen intake in 24 hours, generally 3,000 to 4,000 mg for healthy adults and lower with liver disease, heavy alcohol use, or malnutrition; exceeding it risks severe liver injury.
- Patient-controlled analgesia
- Related: Opioid-induced respiratory depression, Multimodal analgesia, Naloxone
A pump that lets the patient press a button to self-administer a prescribed small opioid dose within set limits, improving control and satisfaction; the nurse verifies settings and monitors sedation and breathing.
- Preemptive analgesia
- Related: Multimodal analgesia, Peripheral nerve block
Giving analgesic treatment before a painful procedure or surgery to prevent pain signals from creating nervous system sensitization, which can lower total pain and opioid requirements afterward.
- Epidural analgesia
- Related: Peripheral nerve block, Opioid-induced respiratory depression
Delivery of local anesthetic and/or opioid through a catheter into the epidural space beside the spinal cord, blocking pain for labor, surgery, or trauma; requires monitoring for hypotension, motor block, and breathing problems.
- Peripheral nerve block
- Related: Epidural analgesia, Procedural sedation and analgesia
Injection of local anesthetic around a specific nerve or nerve group to numb a body region for surgery or pain control; nurses monitor sensation, movement, and signs of local anesthetic toxicity.
- Radiofrequency ablation
- Related: Informed consent for interventional pain procedures
A procedure that uses heat generated by radio waves to destroy selected nerve tissue and interrupt pain signals, offering longer relief for certain chronic pain conditions such as facet joint or nerve-root pain.
- Intrathecal drug delivery system
- Related: Informed consent for interventional pain procedures
A surgically implanted pump and catheter that delivers small medication amounts directly into the fluid around the spinal cord, giving strong relief with fewer systemic effects; requires refills and careful monitoring.
- Procedural sedation and analgesia
- Related: Informed consent for interventional pain procedures, Opioid-induced respiratory depression
Using sedative and pain-relieving drugs to keep a patient comfortable and still during a procedure while maintaining breathing and responsiveness; requires monitoring, airway readiness, and discharge criteria.
- Transcutaneous electrical nerve stimulation
- Related: Multimodal analgesia, Cognitive behavioral therapy for pain
A device delivering mild electrical pulses through skin electrodes to reduce pain, thought to work through gate control and endorphin release; a non-drug, adjustable adjunct that nurses help patients use safely.
- Cognitive behavioral therapy for pain
- Related: Pain catastrophizing, Activity pacing
A structured psychological treatment that helps people change unhelpful thoughts and behaviors related to pain and learn coping skills such as relaxation and pacing; it improves function and distress rather than erasing pain.
- Mirror therapy
- Related: Phantom limb pain, Complex regional pain syndrome
A rehabilitation technique using a mirror to create the illusion of movement in an affected limb, which can reduce phantom limb pain and some complex regional pain syndrome symptoms by retraining the brain.
- Activity pacing
- Related: Pain catastrophizing, Cognitive behavioral therapy for pain
Planning activity and rest in balanced blocks so a person avoids the boom-and-bust cycle of overdoing and then crashing, protecting function and reducing pain flares in persistent pain conditions.
- Pain catastrophizing
- Related: Cognitive behavioral therapy for pain, Activity pacing, Total pain
A pattern of magnifying pain's threat and feeling helpless about it, which raises distress, disability, and pain intensity; recognizing it helps nurses target reassurance, education, and coping support.
- Complex regional pain syndrome
- Related: Mirror therapy, Neuropathic pain, Central sensitization
A chronic condition, usually after injury, with severe burning pain, swelling, skin color and temperature changes, and sensitivity out of proportion to the original damage; early recognition and rehabilitation improve outcomes.
- Opioid use disorder
- Related: Opioid tolerance, Universal precautions in pain management, Aberrant drug-related behavior
A treatable medical condition with loss of control over opioid use, craving, and continued use despite harm; it is not the same as physical dependence or tolerance, and affected patients still deserve adequate pain relief.
- Aberrant drug-related behavior
- Related: Universal precautions in pain management, Opioid use disorder
Any behavior suggesting misuse of prescribed medication, such as early refill requests, lost prescriptions, or using drugs from other sources; it warrants assessment, not automatic dismissal, and should be documented objectively.
- Total pain
- Related: Palliative sedation, Pain catastrophizing
A palliative care concept that suffering includes physical, emotional, social, and spiritual dimensions, so effective relief requires addressing all of them rather than treating the physical symptom alone.
- Palliative sedation
- Related: Total pain, Breakthrough pain
The carefully considered use of sedating medication to relieve unbearable, refractory symptoms in a dying patient, with informed consent; the intent is comfort, not hastening death.
- Pain Assessment in Advanced Dementia (PAINAD)
- Related: Numeric Rating Scale, Total pain
An observational scale scoring breathing, negative vocalization, facial expression, body language, and consolability from 0 to 10 for patients with advanced dementia who cannot self-report pain.
- Breakthrough pain
- Related: Total pain, Equianalgesic dose
A temporary flare of severe pain that occurs despite otherwise controlled background pain, often sudden and short-lived; it needs a plan with a rapid-onset analgesic and reassessment after each dose.
- Universal precautions in pain management
- Related: Aberrant drug-related behavior, Opioid use disorder
Applying consistent risk screening, agreements, urine testing, and monitoring to every patient receiving opioids rather than singling out individuals by appearance or diagnosis, which reduces bias and improves safety.
- Informed consent for interventional pain procedures
- Related: Procedural sedation and analgesia, Radiofrequency ablation
Explaining a procedure's purpose, benefits, risks, alternatives, and what happens if declined, then confirming the patient's voluntary agreement; the nurse verifies and supports understanding before proceeding.