Exam Flashcards
List some vaccine preventable diseases
Diphtheria Tetanus Measles Mumps Rubella HPV Hepatitis Herpes Zoster Poliomyelitis (polio) Haemophilus influenzae type b (HIB) Pertussis (whooping cough)
What are some vaccine considerations?
Seasonal changes
Geographical concerns
Record immunisations on national register
Define immunity
The ability of the human body to protect itself from infections
Types of immunity
Actively
Passively
Horizontally
Example of passive immunity
Newborn babies receive passive immunity to several diseases from antibodies passed across the placenta from their mothers
Example of active immunity
Vaccines provide long-term active immunity to disease without the risks associated with the disease
Considerations when giving immunisations
Six rights of medication
Consent
Distraction may be needed based on age
Educate parents on side effects and adverse reactions
Route for delivering immunisations
Parenteral (intradermal, subcut, IM)
Location for delivering immunisations
Vastus lateralis
Deltoid
Gluteal (occasional)
Anticipated reactions to immunisations
Links to autism and asthma
Developmental delays
Unanticipated adverse reactions
Allergic reactions - eggs
Define child mortality
Number of deaths under one year of age in one year rate per annum
Define child morbidity
Percentage of children aged 0-14 in a rate per 100,000 with chronic disease
What are child mortality rates linked with?
Economic advantage
SDoH
How much of Australia’s population is comprised of children?
20%
Is the percentage of children in Australia increasing or decreasing and why?
Decreasing due to more productive population meaning children are being born less often and later in life
Define childhood chronic conditions
Functional limitations on normal growth, development and socialisation
List childhood chronic conditions
Asthma Diabetes Congenital abnormalities Genetic conditions Childhood diseases Cancers
Health priorities in paediatrics
Obesity
Dental health
Emotional and social wellbeing
Chronic diseases have seeds in childhood (T/F)
True
What measurements are needed for a growth assessment?
Weight
Length
Height
Head circumference
What does a growth assessment involve?
Tracking of weight, length and height on growth chart
Tracking along centile lines shows healthy growth
Percentage of children within 3-97 percentile
94%
Percentage of children below 3 percentile
3%
Percentage of children above 97 percentile
3%
Outline History of Childhood
Pre-industrialisation – Mini adults
19th Century – Victorian Puritanism, ‘spare the rod and spoil the child’
Pre World War 1 – Country’s future, health visiting and school nursing began, child development theories emerged
Inter War – Mechanisms of ‘child rearing’, mother-craft classes
Post World War 2 – Child centred child rearing
Define vulnerable
Children and young people experience illness differently to adults making them susceptible to harm
Define powerless
Children and young people lack political and economic power within society and healthcare that can be due to social structures
Define dependent
Children and young people’s level of dependence on adults changes in response to physical, cognitive, developmental, social and experiential changes
A&P of head
Large compared to adults
Newborns head exceeds circumference of chest
Anterior and posterior fontanelles
A&P of arms and legs
Shorter and underdeveloped at birth
Legs grow rapidly after age 1
Hands and feet are long gangly
Midpoint in length
Child is umbilicus
Adult is symphysis pubis
Body length
Increases by 50% in first year
A&P of muscles
Lack tone, power and coordination
A&P of growth
Christmas tree pattern occurs with adolescent growth spurt, pubertal growth spurt
A&P of BMR
Reduces over time
Higher oxygen and calorie needs when young
A&P of abdomen
Protuberant, circumference exceeds that of the skull and thorax, disproportionate due to large liver and small pelvis
A&P of sinuses
Small facial sinuses
A&P of spinal column
Anterior curve only
Cervical and lumbar curves develop by holding head up and walking
Spinal cord extends to L3 at birth and L1 at 1 year. Myelination complete and primitive reflexes disappear at 3, neuronal development finishes age 12.
A&P of iliac crest
Neonates have imaginary line joining the iliac crests which occurs at S1
A&P of skeletal strength and endurance
Increases with age
A&P of thorax and shoulder girdle
Displaced upwards towards the neck
A&P of brain
Neonate has relatively large brain at 1/10 of weight compared to 1/50
A&P of integumentary system
1mm thick at birth, 4% of birth weight.
Functionally matures during early childhood.
Minimal production of sebum.
Eccrine glands functional but immature.
A&P of cardiovascular system
Right and left ventricles same size and thickness at birth.
CO regulated by HR and SV.
BP gradually rises.
Total blood volume 70-80mls/kg.
Cardiac muscle fibres increase over childhood.
1 month: right ventricle dominant
4-6 months: left ventricle dominant
four weeks: LV heavier than RV
two months: LV 2x heavier than RV
A&P of respiratory system
Trachea is short and soft
Large tongue
High airway resistance
Epiglottis is horseshoe shaped and posterior at 45 degree angle
Infant – diaphragm has 75% Type II muscle fibres
<6 months – obligate nasal breathers, rely on diaphragm, compliant chest wall, outward recoil of thorax is low
5+ years – lung weight increases 3x, lung and alveolar growth and maturation complete by 8 yrs
A&P of hepatic system
Neonatal liver is large
Enzyme systems exist but not sensitised.
Increased hepatic metabolic activity at 3 months, peak at 2/3 years, decline with age
A&P of renal system
Cannot concentrate urine effectively
Less control of U&E secretion and absorption.
Glomeruli smaller than adults.
Infants ureter is short.
GFR: newborn ~30% of adult, increases quickly during first two weeks, slow to approach adult level by end of first year. Low GFR affects ability to excrete saline and water loads
A&P of fluid Homeostasis
Newborn 70–80% water.
TBW decreases with age due to loss of water in ECF fluid.
Fluid turnover 7x adults.
Children higher risk for rapid dehydration.
A&P of digestion
Stomach high and transverse.
Intestines shorter.
Liver and spleen susceptible to trauma.
Emptying time shorter.
Gastro oesophageal reflux common until 5 months due to inability coordinate breathing and swallowing.
Gastric pH and volume close to adult range by 2nd day.
Development of thought processes in infancy
Infancy: Primarily use non verbal communication
Development of thought processes in preschool
Egocentric. Need explanations in concrete terms. Animism can make them fearful. Cannot distinguish between fact and fantasy
Development of thought processes in school aged
Start to rely less on what they see and more on what they know
Development of thought processes in adolescence
Fluctuate between child and adult thinking and behaviour
Development of thought processes in older infants
Attentions are centred on themselves and parents
Functions of the gastrointestinal tract
Digestion
Absorption of nutrients and water
Protective barrier against infection
Children’s GI tract is immature until age 8, making them vulnerable.
How is the GIT altered in children
Children have a higher metabolism so need more calories and fluid for growth
The intestinal tract in children is larger per body weight compared to adults
Gastric acid secretion reaches adult levels by 10 years of age
Short oesophagus in the infant
First three months pancreatic juice contains low levels of lipase (convert fat into glycerol)
Causes of lower nutritional intake
Impairment of normal sucking, chewing and swallowing mechanism
Dyspnoea
Neuromuscular
Anorexia associated with chronic illness
Absorption
Primary appetite disorders
Increased nutritional requirements
Conditions requiring a continuous supply of nutrients
Treatment of lower nutritional intake
Surgical interventions Medical interventions Psychosocial (Behavioural management, CBT) Pharmacological Special diets (low fibre, lactose free) Enteral feeding methods TPN Re-Feeding syndrome
Non organic causes of growth and weight faltering
Feeding problems Maternal stress, depression Lack of stimulation and under nutrition Fabricated or Induced Illness by Carers (MSbP) Disturbed attachment and bonding Anorexia Bulimia
Organic causes of growth and weight faltering
Inability to feed Malabsorption (Crohn’s, CF) Illness induced anorexia Impaired nutrient absorption (Coeliac) Endocrine (hyper/hypothyroidism) Miscellaneous (IUGR) Genetic (Turners)
Advantages of Breastfeeding
Immune properties
Nutritional properties - soluble iron
Reduced incidence of otitis media, GI infections, jaw teeth formation, obesity
Emotional increases attachment
Maternal health reduction in disease occurrence in later life
Reduced risk of atopies - asthma, eczema
Reduces incidence of cows milk allergy and lactose intolerance
Disadvantages of Breastfeeding
Unknown intake Transmission of infection Transmission of some drugs Nutrient inadequacies if mother depleted Less flexible Vit K deficiency - only until feeding established Emotional upset if unsuccessful
How many children aged 5-17 are overweight or obese
A quarter (600,000) of Australian children
Issues associated with child obesity
2x as likely to have elevated total cholesterol
4.5x more likely to have raised systolic blood pressure
13x as likely to have hyperinsulinaemia compared with children who fall below the 85th centile.
Why do children need more water?
High ratio of ECF to ICF in young children
High caloric expenditure due to increased BMR
Large surface area increases insensible water loss
Increased daily water turnover 15% vs 9%
Immature homeostatic mechanisms
What are the classifications of dehydration?
Isotonic dehydration
Hypotonic dehydration
Hypertonic dehydration
What is isotonic dehydration?
State in which the solute concentration is identical to that of body fluids: Na between 130 and 145
What is hypotonic dehydration?
The solute concentration is below that of normal body fluids: Na < 130
What is hypertonic dehydration?
The solute concentration is above that of normal body fluids: Na > 145
What is isotonic fluid?
Same osmolarity as serum = stays where its put and does not affect the size of cells
What is hypotonic fluid?
Higher osmolarity = fluid is pulled from the cells and the interstitial compartment into the blood vessels
What is hypertonic fluid?
Lower osmolarity as serum = fluid shifts out of the blood vessels and into the cells and interstitial spaces
What is percentage is moderate dehydration
4-6%
What is Moderate Dehydration (4-6%)
CM: tired, restless, irritable, increased thirst, dry mouth and tongue, decreased urine output, minimal or no tears, normal to increased HR, normal to fast RR, cool extremities, capillary refill greater than 2 seconds, recoil on skin less than 2 seconds, sunken eyes
3 to 6 % weight loss (weight usually correlates to how dehydrated the child is - 5% dehydration = loss of 5ml of fluid per 100g
Difficult to get them to drink more fluids.
What is Severe Dehydration (7-10%)
Increasingly marked signs from moderate group
CM: Lethargic or unconscious, parched mouth and tongue, minimal or no urine output, increased HR, weak pulse, deep breathing, cool mottled extremities, capillary refill prolonged, diminished skin turgor, deeply sunken eyes
Priorities of management are to identify shock and treat it effectively and rapidly.
Poor drinking or may be unable to drink
Greater than 9% weight loss
What is percentage is severe dehydration
7-10%
Effect of electrolytes in children
Loss of electrolytes can affect homeostatic systems
Potassium [K+] affects on the heart Calcium [Ca] affects nerve transmission Phosphorus [P] affects muscle function Magnesium [Mg] affects metabolism of CHO Sodium [Na] regulates fluid balance
Treatment of acute infectious diarrhoea
Do:
Oral Rehydration Therapy
Intravenous Infusion Therapy
Breast milk; Formula milk; Solids
Don’t:
Antiemetics
Antidiarrhoeal agents
Antibacterial agents
Organic causes of Constipation
Anatomic malformations: imperforate anus, anal stenosis, pelvic mass
Metabolic and gastrointestinal: cystic fibrosis, diabetes mellitus, coeliac disease, hypothyroidism
Neuropathic: spinal cord problems, neurofibromatosis
Intestinal nerve or muscle disorders: Hirschsprung’s disease, visceral myopathies
Abnormalities of abdominal muscles: gastroschisis, Down’s syndrome
Connective tissue disorders: systemic lupus erythematosus, scleroderma
Drugs: opiates, phenobarbitone, anti hypertensives, antidepressants
Miscellaneous: lead poisoning, vitamin D overdose
Non organic of Constipation
Majority cases
Poor dietary management
Developmental problems that complicate toilet training
Emotional abuse, depression and inappropriate toilet training practices in the younger child
Familial tendency and sedentary lifestyle (adolescent)
Management of Constipation
Impaction is managed using oral and or rectal medication
Stool softeners are given prior to stimulants
Suppositories or phosphate enemas may be used
Subsequent management requires a programme that is a whole child and family approach
dietary management
maintaining laxative therapy
behaviour modification
Leading cause of death for children under one
Perinatal
Congenital
Leading cause of death for children aged 1-14
External
Land transport accidents
Leading cause of death for children aged 15-24
External
Suicide
Primary survey during cardiac arrest
A - airway with C spine control
B - breathing with ventilatory support
C - circulation with haemorrhage control
D - disability with prevention of secondary insult
E - exposure with temperature control
Affect of cardiac arrest on the effort of breathing
Recession Respiratory rate Inspiratory/expiratory noises Grunting Accessory muscle use Flare of the alae nasi Gasping Childs position
Affect of cardiac arrest on the efficiency of breathing
Chest expansion
Breath sounds and Auscultation
Abdominal excursion
Respiratory inadequacy effects:
Heart rate
Skin colour
Mental status
Effects of respiratory inadequacy on heart rate
Initially tachycardic
Become tired and start to get bradycardic
Effects of respiratory inadequacy on skin colour
Hypoxia produces vasoconstriction and poor skin pallor
By the time central cyanosis is visible in acute respiratory disease the child is close to respiratory arrest
Effects of respiratory inadequacy on mental status
Agitated or drowsy
Drowsiness increases and leads to unconsciousness
Generalised muscular hypotonia also accompanies hypoxic cerebral depression
Effects of circulatory inadequacy on other organs
Respiratory rate and character
Skin appearance and temperature
Mental status
Signs of cardiac failure
Cyanosis Absent femoral pulses Gallop rhythm/murmur Crepitations in lungs Enlarged liver Hypotension
Define Decorticate
Flexed arms and extended legs
Define Decerebrate
Extended arms and extended legs
Warning signs of cardiac arrest
Respiration
- Abnormal breathing pattern
Circulation
- Cushings response - hypertension with bradycardia
Signs of cardiac arrest
Tachycardic: Children cannot increase stroke volume so heart rate will increase to try to compensate for hypoxia. Pyrexia also increases the heart rate
Tachypnoeic: Chemoreceptors in the medulla oblongata and the aortic and carotid bodies detect changes in blood oxygen and carbon dioxide accumulation. They are responsible for speeding up the respiratory rate in an attempt to excrete carbon dioxide
Marked accessory muscle use: Intercostal, subcostal, sternal recession shows increased efforts of breathing, particularly in younger children due to the compliancy of the chest wall. However as Zachary is 7 it indicates severe respiratory compromise, particularly as he can only answer in single words
Agitated: Carbon dioxide is a toxic cerebral irritant if not reduced Zachary’s, conscious level will deteriorate and he will become drowsy. c/o Pins and needles/tingling.
Exhaustion is a pre terminal sign
Reduced breath sounds: decreased air movement through the lungs
Pyrexial: It is common in this age group for an underlying infection or virus to exacerbate asthma
What is disability
acute physiological change
CM of disability
Headache Neck pain Temperature of unknown origin Vomiting Drowsiness Dizziness Altered visual acuity Changes in appearance of eyes Loss of motor function or weakness Photophobia Halo Seizures
Causes of headache in children
Adolescent diagnoses (ethanol, stress) Raised ICP BP Head Trauma Cerebral haemorrhage Infection
What GCS score indicates concussion?
Less than or equal to 8
Types of seizures
Epilepsy Generalised seizure Partial seizure Status epilepticus Febrile convulsions
What is epilepsy?
common, focal or generalised, cerebral
What is a generalised seizure?
whole of brain, loc, incontinence
What is a partial seizure?
no loc, changed aura (taste, smell, hallucination)
What is status epilepticus?
unresolving, emergency, reduction in blood to brain
What are febrile convulsions?
under 5 yrs pyrexiametabolic
What is intracranial pressure?
pressure exerted by cranial contents on skull
Intracranial contents consist of:
Brain (80%)
Cerebrospinal fluid (10%)
Blood (10%)
Causes of brain injury
Structural
- Neoplasms
- Closed head injury
- Open head injury
Metabolic
- Lack of oxygen
- Accumulation of wastes (acidosis)
- Hyperglycaemia (DKA)
Treatment of raised ICP
Group nursing activities Quiet dark environment Elevate head of bed Neuro obs Keep head neutral Maintain joint function and muscle tone Pressure management Hydration Monitor fluids Sedation
Management of raised ICP
Maintain progressive neurological assessment (Coma scales) Maintenance of clear airway Neutral neck alignment Group nursing activities Hydration (too much worse than too little) Treat hypotension Maintain joint function and muscle tone Rehabilitation
What is cerebral palsy
Non progressive disorder of upper motor neurone impairment resulting in motor dysfunction
Types of cerebral palsy
Spastic, dystonic, dyskinetic, athetoid, dysarthria
CM of Meningitis
Neck stiffness (nuchal rigidly) Brudzinki’s sign Kernig’s sign Photophobia Petechial rash (non blanching) Evidence of raised ICP Level of consciousness (difficult to wake, lethargic, blank or staring expression) Opisthotonos Sudden Fever Poor feeding High pitched cry Raised ICP
DX of Meningitis
Lumbar puncture
CSF
Full blood count
TX of Meningitis
Neuro observations Quiet dark room IV antibiotics Head circumference Analgesia
Types of Wounds
Acute (burns) Chronic (ulcers) Incision wounds (surgery) Traumatic wounds (often contaminated, gravel rash) Ulcers Stoma wounds Perineal wounds
Types of wound healing
Primary intention Secondary intention Tertiary intention Skin graft Flap graft
Describe healing by primary intention
Wound union occurs directly without intervention of granulations
Describe healing by secondary intention
Union by closure of a wound with granulations
Describe healing by tertiary intention
Treatment of a grossly contaminated wound by delaying closure until after contamination is reduced and inflammation subsides
Describe healing by skin graft
Patch of skin removed by surgery from one area of the body and transplanted to another area
Used for areas where infection caused large amount of skin loss;burns; cosmetic or reconstructive surgeries with skin damage or skin loss; skin cancer surgery; venousor pressure ulcers; diabetic ulcers that don’t heal; very large wounds; wounds unable to close