Pain and Vital Signs (Chapter 6) Flashcards
What structure regulates body temperature? What else is regulated here?
The hypothalamus. It also regulates hunger and thirst, ANS, sleep/wake, emotional responses, and much more.
How do fevers come about?
The body recognizes invading pathogens. These pathogens are phagocytized which releases pyrogens that travel to the hypothalamus to reset the thermostat at a higher level, resulting in a fever.
What are some ways the body generates heat? What about cooling the body?
Shivering - repetitive muscle contractions generating heat from these contractions.
Vasoconstriction - the blood is pulled away from the surface of the skin allowing less of the heat to escape through the skin.
Contraction of the pilo muscles which decreases the surface area for heat to escape.
The body can be cooled through vasodilation and sweating.
What does the systolic blood pressure represent? What about the diastolic?
Systolic - represents the force the ventricles exert on the blood vessels when they contract.
Diastolic - represents the PVR during heart relaxation.
Neuropathic pain
1. Patho
2. Subjective data
Longterm chronic pain associated with CNS that persists beyond healing.
1. Trigeminal neuralgia. radiculopathy, diabetic peripheral neuropathy. Caused by damaged peripheral nerves constantly sending impulses to the CNS. Excited dorsal horn.
2. Burning, tingling, numbness, electric shock like. Could worsen at night.
Describe the pathway pain takes to get from the site of injury (the foot) to the brain. What fibers are utilized?
- You step on something sharp. The nociceptors in the foot transmit this painful stimulus along the C fibers (slow, nonmyelinated) and the a-delta fibers (fast, myelinated).
- These two fibers enter the dorsal horn of the spinal column.
- The impulse continues along the spinal cord to the brain. Once it enters the brain, different structures can modify the pain sensation.
Infants are more susceptible to hypothermia. Why?
- Surface area - large body surface area to weight ratio
- Thinner skin
- Poor stress
What is considered a normal temperature?
97.2 - 99.9 (36.2 to 37.7)
What is considered a fever?
Temperatures above 100.4
0 to 90 days of life fever
Any fever in this age range needs immediate evaluation
After 90 days of life with a fever
A fever of 105 degrees needs immediate evaluation
Preferred pulse location for infants
Apical
Orthostatic hypotension
1. Common causes
2. Subjective findings
3. Assessment
- Fluid volume deficit, antihypertensive medications
- Dizziness and lightheadedness upon standing
- Take the patient’s blood pressure sitting to establish a baseline. Have the patient stand and retake the blood pressure (within 3 minutes). Orthostatic hypotension is present if there is a drop in systolic BP of 20 mmHg or 10 mmHg in diastolic.
Normal blood pressure
Prehypertension
Hypertension:
Stage 1
Stage 2
Normal - less than 120/80
Prehypertension - 120-139 / 80-89
Hypertension
Stage 1 - 140-159 / 90-99
Stage 2 - 160 or higher / 100 or higher
Prehypertension ranges
120-139 / 80-89
Hypertension stage 1 ranges
140-159 / 90-99
Hypertension stage 2 ranges
160 or greater / 100 or greater
Tender, deep, aching pain
Bone or soft tissue
Heavy, throbbing, and aching
Tumor pressing on a cavity
Burning or shock like
nerve related
Sweaty, grimacing, hand over chest
MI
Cramping
Visceral or colic
When are children’s reliable reporters of pain?
3 or more
FLACC pain assessment
F - face
L - legs
A - activity
C - cry
C - consolability
Gestational HTN
140/90 or higher
Severe HTN with pregnancy? Associated with?
160/110 or higher. Associated with preeclampsia
PAIN AD
Pain assessment in advanced dementia
Complex pain syndrome
Chronic condition in which regional pain extends beyond the peripheral nerve injury. Can have subjective and objective changes.
Back pain, contraction, round ligament pain - look at the physiologic causes
FLACC
1. Used for?
2. Acronym
Used for non-verbal or post surgery patients under the age of 7.
Face - relaxed? Grimace?
Legs - relaxed? Rigid? Flexed?
Activity - moves easily and freely? Fixed position? Rocking?
Cry - no cry? Frequent cry?
Consolability - calm, none needed. Constant?
What pain scales are best for children?
- FLACC
- OUCHER
- WONG BAKER
Normal vital signs for infants, children, and adults
1. Blood pressure
2. Heart rate
3. RR
4 Temp
Infants:
1. Blood pressure - 72-104 systolic / 37-53 diastolic
2. Heart rate - 100-190
3 RR - 30-50
4. Temp - does not vary with age. 35.5 (95.9) - 38 (100.4)
Children:
1. Blood pressure - 86-115 systolic / 42-76 diastolic
2. Heart rate - 75-140 bpm
3. RR - 18 - 28
4. Temp does not vary with age. 35.5 (95.9) - 38 (100.4)
Adults:
1. Blood pressure - below 120 systolic/ below 80 diastolic
2. Heart rate 60-100 bpm
3. 12-20
4. Temp does not vary with age
Complex regional pain syndrome VS Neuropathic pain
CRPS - problem originates in the periphery. The extent of the damage extends beyond the expected time.
Neuropathic pain - problem originates in the CNS. Extends past expected healing time.