exam 2 management of discomfort Flashcards
What are components of physiologic pain?
dilation and stretching of cervix
distention of the lower uterine segment
uterine muscle cell ischemia
pressure by presenting part on abdominal structures
referred pain –> near by structures
what are the factors influencing pain response?
culture
anxiety
previous experience and learned coping skills
childbirth preparation
support and environment
what are strategies of pain management?
relaxation: relax selected muscle groups
distraction techniques, focal imagery
touch and massage
effleurage and counter pressure
- Effleurage is light stroking of abdomen or back in rhythm with the patient’s breathing during a contraction.
-Counter-pressure is steady pressure applied to sacral area…Especially helpful when back pain is caused by the baby in the occiput posterior position…
- Lifts the occiput off the nerves –> some relief.
music
water therapy (hydrotherapy)
what are the controlled breathing techniques?
Provides distraction and reduces the perception of pain during UC
1st stage of labor _ relaxation _ increases size of abdominal cavity _ promotes fetal descent
2nd stage of labor _ used to increase abdominal pressure and assist in bearing down (pushing) with UC
what is a cleansing breath?
All breathing patterns begin and end with relaxing cleansing breath…in through nose…out through mouth
what are the breathing techniques?
slow paced breathing
modified paced breathing
pant blow: Used during transition to help control urge to push. SE: hyperventilation and respiratory alkalosis
The most difficult time to maintain control is transition phase of first stage of labor when cervix is dilating 8-10 cm. The pant-blow technique is suggested during this time.
Symptoms of respiratory alkalosis are:
Lightheaded
Dizzy
Tingling of fingers
Circumoral numbness or blueness
Blow into paper bag or cupped hands helps to rebreathe the CO2 and eliminate the bicarbonate ion
Be pattern that is no more than 2X the normal rate helps reduce chance of resp. alkalosis
what are the pharm pain management considerations?
effects on the fetus:
Drugs may cross placenta to fetus
Drugs –> maternal hypotension and reduce placental perfusion
effects on the course of labor
may slow progress if given too early
may impair natural urge to push
What are the systemic analgesia?
Goal is adequate pain relief without increasing maternal or fetal risk
Pain relief without affecting the progress of labor
Stage/phase and progress of labor determines type of analgesia or anesthesia
What do you need to know about barbiturates?
Examples: Secobarbital (Seconal) * or Pentobarbital (Nembutal)
relieve anxiety and induce sleep
may be administered in early labor to alter a dysfunctional pattern
are not used in active labor because of CNS depression in newborns
what do you need to know about Ataractics?
reduces anxiety apprehension and N/S
increases sedation
thought to potentiate opioid analgesic meds effects (actually impairs efficacy of opioids)
antiemetic effect
may contribute to maternal hypotension and neonatal depression
Examples: Promethazine (Phenergan) and Hydroxyzine (Vistaril)
Administration of Systemic Medications During Labor?
IV preferred over IM because onset of action is faster and duration more predictable
IV medication injected slowly through the distal port (nearest the IV insertion site) in small doses.
or an epidural pump (discussed later)
Opioid (Narcotic) Agonist Narcotic Analgesics –> ex of pure opioids include?
dilaudid
demerol (meperidine)
fentanyl (sublimaze)
sufenta (sufentanil)
what are agonists?
Agonist = agent that stimulates a receptor to act
These drugs decrease gastric emptying and increase N/V
May cause inhibition of bladder
what do you need to know about demerol?
onset of action for IV administration almost immediate. 10-20 minutes IM.
Duration of action: 1.5 to 2.0 hours… (NOT used as much because of undesirable effects on the neonate – prolonged sedation & neurobehavioral changes and can las for up to 2-3 days in the neonate)
what do you need to know about fentanyl and sufenta?
Fentanyl and Sufenta most commonly administered by epidural catheter.
Sufenta…newer drug …more potent than fentanyl. Does not cross the placenta as readily so less fetal exposure to drug.
Onset 3-5 minutes…duration of action about 60 minutes.
what are antagonists?
Antagonist = agent that blocks a receptor
A med may be injected over a period of three-five consecutive contractions if needed to complete the dose
what is the nursing alert for narcan?
Narcan (Naloxone Hydrochloride)is antidote/antagonist to narcotic analgesic _ reverses CNS depressant effects of the narcotic
Narcan contraindicated for narcotic addicted patients because may precipitate withdrawal symptoms
What are Mixed Opioid Agonist-Antagonist Analgesics and what do they do?
Stadol (Butorphanol Tartrate) and Nubain (Nalbuphine Hydrochloride)
Provides adequate analgesia without respiratory depression in mom or baby
Used more in labor than narcotic analgesics
May precipitate withdrawal symptoms in narcotic dependent women and baby
what are Regional Anesthesia/Anesthesia?
epidural block
in some area 90% of pts laboring receive an epidural.
what are the epidural advantages?
pt remains alert
good relaxation techniques are achieved
only partial motor paralysis occurs
airway reflexes reamin intact
gastric emptying is not delayed
blood loss is not excessive
what are the epidural disadvantages?
limited mobility
may increase duration of second stage labor
not effective for some pts/ and a 2nd form of analgesia is required
urinary retention
pruritus (itching)
high or total anesthesia
what are the epidural meds?
usually a combo of a “caine” drug and a opioid analgesic
Bupivacaine (sensorcaine)
ropivacine (naropin)
Drug concentrations have been lowered…
Fentanyl, sufenta or preservative-free morphine may be added…opioid analgesics
Continuous infusion pumps are used to administer…gives woman control
What is a nerve block analgesia: epidural?
Administered after labor is well established _ dilated 5-7 cm (typical)
Injection of medication or combination of meds through a catheter inserted into epidural space
Meds administered by continuous infusion or intermittent injections
Patient controlled epidural anesthesia allows the patient to control the dosing
What are the structures of the spinal column and what do you need to know for an epidural?
Spinal cord (ends at L1 in adults) this may be a question which arises. The epidural is placed between L2 to L5 so therefore the epidural needle does not go near the spinal cord.