Nonpharmacological Pain Management: Sherpath Flashcards
Nonpharmacological Pain Management
What the two components of pain?
Physiologic
Psychologic
Physiologic Component
includes reception by sensory nerves and transmission to the central nervous system
Psychologic Component
involves recognizing the sensation, interpreting it as painful, and reacting to the interpretation
Physiological: Adverse Effects
Labor increases a woman’s metabolic rate and her demand for oxygen. Pain and anxiety escalate her already high metabolic rate by increasing production of catecholamines, including epinephrine and norepinephrine, cortisol, and glucagon. The patient may hyperventilate in response to pain and increase sympathetic hormones to obtain more oxygen, exhaling too much carbon dioxide in the process and having less oxygen to share with the fetus. High catecholamine levels and excess of stress hormones reduce blood flow to the uterus and placenta.
Psychological: Adverse Effects
Poorly relieved pain lessens the pleasure of this extraordinary life event for both partners. The mother may find it difficult to interact with her infant because she is depleted from a painful, exhausting labor. Unpleasant memories of the birth may affect her response to sexual activity or another labor. Her partner may feel inadequate as a support person during birth.
Tissue Ischemia
The blood supply to the uterus decreases during contractions leading to tissue hypoxia. Ischemic uterine pain has been likened to ischemic heart pain.
Cervical Dilation
Dilation and stretching of the cervix and lower uterus are a major source of pain. Pain stimuli from cervical dilation travel through the hypogastric plexus entering the spinal cord at the T10, T11, T12, and L1 levels.
Pressure and pulling on pelvic structures
Some pain results from pressure and pulling on pelvic structures such as ligaments, pelvic bone, fallopian tubes, ovaries, bladder, and peritoneum. The pain is a visceral pain; a woman may feel it as referred pain in her back and legs.
Distention of the vagina and perineum
Marked distention of the vagina and perineum occurs with fetal descent, especially during the second stage. The woman may describe a sensation of burning, tearing, or splitting. Pain from vaginal and perineal distention and pressure and pulling on adjacent structures enters the spinal cord at the S2, S3, and S4 levels.
What are the sources of labor pain
Tissue Ischemia
Cervical Dilation
Pressure and pulling on pelvic structures
Distention of vagina and perineum
Which examples demonstrate how labor pain is different from other types of pain?
Labor pain is intermittent.
A woman may experience little discomfort with contractions, and she may be relatively comfortable during the short rest periods between contractions. This makes labor different from other types of pain.
Labor pain has a foreseeable end.
A woman can expect her labor to end within hours, rather than days, weeks, or months, whereas other types of pain may not have a foreseeable end.
Childbirth pain is part of a normal process.
Childbirth pain is part of a normal process, whereas other types of pain usually indicate an injury or illness.
Woman can acquire skills to help manage labor pain.
Different from other types of pain, pain associated with the birth process can be addressed, in part, by realistic preparation and knowledge about the birth process.
Which is a physiological effect resulting from labor pain?
Increased production of catecholamines
The production of “fight-or-flight” hormones increase as a result of labor pain and anxiety. These include the catecholamines epinephrine and norepinephrine.
Match the type of labor pain with its cause.
Pain caused by decreased blood flow to the uterus
**Tissue ischemia
Pain caused by the stretching of the lower uterus
**Cervical dilation
Pain caused by strain on ligaments and the peritoneum
**Pressure and pulling on pelvic structures
Pain described as burning, tearing, or splitting of the vagina
**Distention of the vagina and perineum
Promoting a relaxing environment for mom
Promotion of uterine blood flow, thus improving fetal oxygenation
Promotion of efficient uterine contractions
Reduction of tension that increases pain perception and increases pain tolerance
Reduction of tension that can inhibit fetal descent
Cutaneous Stimulation
Cutaneous stimulation involves stimulation of nerves via skin contact in an effort to reduce pain impulses to the brain. Examples used during labor include massage, thermal simulation, and acupressure. Cutaneous stimulation techniques are often combined with each other or with other techniques.