Pain Ch. 11 Flashcards
Briefly describe the physiology of pain
Transduction- injured tissue releases chemicals to travel along spinal cort
Transmission- pain impulse moves from spinal cord to the brain
Perception of Pain
Modulation- neurons in brainstem release impulses to block the pain impulse
What are the 3 sources of pain?
Visceral
Somatic
Referred
Explain visceral pain
Originated from larger interior organs, usually abdomen
Explain somatic pain
Originates from musculoskeletal tissues or body surface
Explain the two types of somatic pain
Deep Somatic Pain: injury to blood vessels, joints, tendons, muscles, bone
Cutaneous (superficial) Somatic Pain: injury to skin surface and subcutaneous tissues
Explain referred pain
What causes it?
Give a common example
Pain felt at one location but originating from another
Both sites innervated by the same spinal nerve and the brain cannot differentiate the source
MI= Myocardial Infarction= left arm/jaw pain
List the types of pain
Acute
Chronic
Breakthrough
Explain Acute pain
give an example
short-term
self-limiting
incident pain
burning finger on hot stove
Explain Chronic pain
longer than 6 months
doesn’t stop when injury heals
pain intensity doesn’t correlate with physical findings
Explain the 2 types of chronic pain
Malignant: parallels pathology of tumor (cancer-associated)
Nonmalignant: usually musculoskeletal conditions
Explain breakthrough pain
List possible causes
Transient spike in pain when pain was otherwise controlled.
End-of-dose medication failure
INcident/episodic pain
Who is the best indicator of a patient’s pain?
The patient
T/F: Older adults perceive pain to a lesser degree/have diminished sensitivity
False
How can dementia affect a patient’s pain expression?
It doesn’t affect ability to feel pain, but it does impact their ability to accurately report the pain
is pain always subjective?
YES