NURS 330 FINAL Flashcards
Genetic Disorders
Disease caused by a genetic mutation that is either inherited or arises spontaneously
Autosomal Dominant
Each child has a 50% chance of showing the disease (Huntington’s, braca breast cancer gene)
Autosomal Recessive
Each child has 50% chance of being a carrier and 25% chance of showing (Cystic fibrosis)
X-Linked Recessive
Males at risk - Each male has 50% risk of showing (color blindness, hemophilia a, duchene muscular dystropyh)
Numerical Chromosome Abnormality
Entire single chromosome added or missing
Structural Chromosome Abnormality
Part of chromosome missing or added OR abnormal rearrangement of material within the chromosome
Trisomy
Extra copy of one chromosome (47)
Trisomy 21
Down Syndrome = most common
Trisomy 13
Less common, severe (don’t live past infancy)
Klinefelter’s Syndrome
Boys have an extra X chromosome (XXY)
Turner’s Syndrome
Only monosomy compatible with life (girls - single X)
Monosomy
Missing chromosome (45)
Bowlby’s Attachment Theory
- Pre-attachment (birth-6wk)
- Attachment in making (6wk - 6-8mos)
- Clear-Cut attachment (6-8mos - 18-24mos)
- Formation of Reciprocal Relationships (24mos +)
Erickson’s Psychosocial Theory
- Trust vs Mistrust (infant - 18mos)
- Autonomy vs Shame/Doubt (18mos - 3yrs)
- Initiative vs Guilt (3-5yrs)
- Industry vs Inferiority (5-13yrs)
Piaget’s Theory of Cognitive Development
- Sensorimotor (infant - 18/24mos)
- Preoperational (2-7yrs)
- Concrete operational (7-13yrs)
- Formal Operation (adolescence - adulthood)
Freud’s Theory of Psychosexual Development
- Oral stage (birth-1yr)
- Anal stage (1-3yrs)
- Phallic stage (3-6yrs)
- Latency stage (6yr-puberty)
Kohlberg’s Theory of Moral Development
- Pre-Conventional
a) obedience & mortality
b) individualism & exchange - Conventional Mortality
a) good interpersonal relationships
b) social order - Individualism & Exchange
a) social contract & individual rights
b) universal principles
Respiratory Differences in PEDS
Nose breathers
Larger tongue
Decreased lung capacity and IC muscles
Increased RR and O2 demand
Short airway
Barrel-chested
Rely on diaphragm
Prone to retractions
Asthma
Chronic airway inflammation (infiltration of T cells, mast cells, basophils, macrophages, and eosinophils)
Characteristics of Asthma
- Bronchial (airway) hyperresponsiveness
- Airway edema
- Mucous production
Silent Asthma
coughing at night when mucous settles
Prevalence of Asthma in Canadian children
10-20%
Most common cause of asthma exacerbation
Respiratory viral infections
S&S of Asthma
Wheezing, increased RR and air entry, increased work of breathing, coughing/sputum
Pediatric Respiratory Assessment Measure (PRAM)
O2 sats, use of accessory muscles, air entry in both longs
Mild = 0-3
Mod = 4-7
Severe = 8-12
SABA
Ventolin - Rescue Med
LABA
Salmeterol - Pre-exercise
Anticholinergic
Ipratropium or atrovent - inhibits bronchoconstriction and decrease mucous production
Inhaled Corticosteroid
Budenoside and fluticasone
Oral Corticosteroid
“Bursts” for uncontrolled asthma
Treatment for mild PRAM
Keep O2 > 92%, salbutamol, consider oral steroids
Treatment for mod PRAM
Keep O2 > 92%, salbutamol, oral steroids, consider ipratropium
Treatment for severe PRAM
Keep O2 > 92%, salbutamol & ipratropium, PO steroids, IV methylprednisolone, continuous SAB, IV mag sulf
Respiratory Syncytial Virus (RSV)
Most common lower resp tract infections in children, leading cause of pneumonia and bronchitis in infants
S&S of RSV
Coughing, rhinorrhea, wheezing, irritability, low fever, nasal flaring & retractions, palpable liver & spleen
Management of RSV
Airway = #1, position/O2/Suction, ventolin & ribovarin
Influenza/Parainfluenza
Virus that can cause upper/lower resp infection (bronchitis, croup & pneumonia)
S&S of Influenza
Fever, cough, runny nose, sore throat, SOB, wheezing
Croup-Laryngotracheobronchitis
VIRAL - swelling in trachea and larynx
S&S of Croup
Tachypnea, stridor, seal-like barking cough
Management of Croup
O2, racemic epinephrine, corticosteroids
Pertussis-Whooping Cough
Bacterial
S&S of Pertussis-whooping cough
Runny nose, fever, mild cough, high-pitched whoop/crowing sound & gasp for air, vomiting after coughing spell
Necrotizing Enterocolitis (NEC)
Most common and serious GI disorders in hospitalized preterm neonates - bowel dying
S&S of NEC
Vomiting, bloody diarrhea, ABD distention, feeding intolerance, irritability OR lethargy
Management of NEC
Surgical resection
Long-Term complications of NEC
Malabsorption, short bowel, scarring/narrowing of bowel, scarring in abdomen
S&S of Dehydration
Irritable, sunken fontanels, sunken eyes, no tears, tenting of skin, bradycardia, hypotension, urine output < 1ml/kg/hr
Dehydration Management
IV fluids - NS bolus, then D5NS for sugar
Hirschsprung (Congenital anianglionic megacolon)
Absence of autonomic parasympathetic ganglion cells of the colon that prevent peristalsis
S&S of Hirschsprung
Vomiting, ABD distention, constipation, no MEC
Management of TEF
Surgery to close fistula
Management of Hirschsprung
Surgical resection of dysfunctional portion
Tracheoesophageal Fistula (TEF)
Abnormal opening between trachea and esophagus
Diagnosis of TEF
Barium Swallow test
Imperforate Anus
Passage of fecal material obstructed
Management of imperforate anus
Surgery to create anal opening
Intussuseption
One portion of bowel slides/invaginates into next
S&S of Intussuseption
vomiting, currant jelly, pain
Management of Intussuseption
Barium Enema
Pyloric Stenosis
Hypertrophy of circular pyloris muscle - stenosis of passage between stomach and duodenum
S&S of Pyloric Stenosis
Projectile vomiting, FTT, dehydration, appears hungry
Nissen Fundoplication
For bad acid reflex to tighten stomach
Formation of Cavity
Bacteria + sugar = acid
Acid + tooth = cavity
Early Lesions
White/chalky, seen at gum line
Progressing/Advanced lesions
Light brown, wet
Inactive/Arrested Lesions
Dark brown/black, leathery
Extra-oral exam
general appearance, asymmetry/swelling
Intra-oral exam
count teeth, note dark staining (D), fillings (F), broken (B), swellings (A)
Diabetes in Children
Most common metabolic disease in children
Type 1 Diabetes
Autoimmune destruction of insulin producing cells (beta-cella) resulting in COMPLETE INSULIN DEFICIENCY
Type 2 Diabetes
Obesity - biggest risk factor - insufficient production of insulin causing high blood sugar
Complications of Type 2 Diabetes
Kidney disease, retinopathy, neuropathy, dyslipidemia, HTN
Hemoglobin A1C
Objective measurement of glycemic control
Diabetic Ketoacidosis (DKA)
Complex metabolic state of hyperglcemia, ketosis and acidosis
HYPERglycemia
Hot & dry, sugar high - polyphagia, polydipsia, polyuria, dry skin, blurred vision
HYPOglycemia
Cool & clammy, need a candy
Tachycardia, Irritability, Restlessness, Excessive hunger, Dizziness, pallor/clammy
Insulin
Anabolic hormone made in beta cells of islets in pancreas - allows entrance of glucose into cells
Spinal Cord Injury (SCI)
Mechanism of injury & direction of forces determines the type of lesion that occurs
Complete SCI
Total loss of all motor/sensory function below level of injury
Incomplete SCI
Some function below level of injury
SCI at C3
Ventilator required
SCI at C5
No wrist/hand control, diaphragm function present
SCI at C6-C7
Quadriplegia, some function of upper extremities
SCI at T1-T8
Hand control, poor trunk control, lack of ABD muscles
SCI at T9-T12
Good trunk and ABD muscle control
Concussion
Most common head injury
S&S of Concussion
Confusion, N/V, dizziness, unusual emotions, slurred speech, headache, slow response, decreased coordination, loss of consciousness
Post-concussive Syndrome
2-12 hours after concussion
Causes of Increased Intracranial Pressure
Meningitis, encephalitis, trauma
Prevalence of Post-Traumatic seizures
10% of head injuries
Head injury complications
Ischemia, death of tissues, deficits, hearing/vision problems, speech and learning problems, behavioral changes
Epidural hematoma
Bleeding between dura and cranium -fast onset
Subdural hematoma
Bleeding right against the brain - slow onset
Nociceptive Pain
Damage to underlying soft & bone tissues by disease
Somatic Pain
Well localized, sharp, throbbing, squeezing, aching
Visceral Pain
Diffuse, poorly localized, dull, crampy, colichy
Neuropathic Pain
Invasion of or traction on nerves arising from injury to CNS and PNS - burning, stinging, lancinating, tingling, stabbing, prickly, shock-like
Pain Assessment tools for Neonates
CRIES
Pain assessment tools for FLACC
Face
Legs
Activity
Cry
Consolability
2mos-7yrs
Wong-Baker FACES
> 3-4yrs
Nervous system at birth
Complete, but immature
Myelination incomplete until 4 years and brain 1/4 size of adult (full mass by age 7-10)
Pediatric Coma Scale
- Eye opening
- Best motor response
- Best response to auditory and/or verbal response
S&S of increased ICP
Bradycardia, wide pulse pressure, irregular resps, irritability, bulging fontanels, increased head circ, seizure, vomiting
Most important indicator of neurologic dysfunction
Level of Consciousness!
Meningitis
Inflammation of the meninges
S&S of Meningitis
Headache, fever, lethargy, rashes, seizures
Most common source of Meningitis
Resp Infection
Diagnosis of Meningitis
Brudzinski’s sign = neck stiffness
Kernig’s sign = hamstring stiffness
1. LP
2. BW
3. Antibiotics
Bacterial Meningitis
Less common, more severe
Aseptic Meningitis
Headache, fever, and inflammation - usually viral
Encephalitis
Inflammation of the brain caused by infection or toxin - edema and neuro dysfunction
S&S of Encephalitis
headache, fever, N/V, stiff neck, dizziness, ataxia, convulsions (seizures), sensory disturbances, drowsiness
Causes of Encephalitis
HSV, ticks, mosquitoes, measles, mumps, chickenpox, rubella, mononucleosis
Herpes Encephalitis
Untreated infants with HSV have 85% mortality rate
Prevention of Herpes Encephalitis
C/S, contact dressing, secretion precautions
Treatment of Herpes Encephalitis
Antiviral meds, corticosteroids (decrease head growth), anticonvulsants PRN, antipyretics
Seizures
Involuntary contraction of muscle caused by abnormal electrical brain discharges
Status Epilepticus
Prolonged and clustered seizures in which consciousness does not return between
Intractable Seizures
Seizures that continue to occur even with optimal medication management
Epilepsity
Recurring seizures that have no immediate underlying cause/problem that cannot be corrected
Partial (focal) seizures
Electrical disturbance is limited to a specific area of one cerebral hemisphere (with or without loss of consciousness)
Partial Seizures WITH loss of consciousness
with or without aura, tonic clonic movement on one side, followed by confusion and lethargy
Partial seizures without loss of consciousness
motor, autonomic, or sensory symptoms - aware and conscious
Generalized Seizure
Affect both cerebral hemispheres - impair consciousness
Absence Seizures
Lapses of awareness that begin and end abruptly, lasting a few seconds (<30 seconds)
Atonic Seizures
Abrupt loss of muscle tone - head drops, loss of posture, sudden collapse, loss of consciousness
Myoclonic Seizures
Rapid, brief contractions of muscles - both sides of the body (may or may not lose consciousness)
Tonic Clonic Seizures
Most common - begin with stiff limbs (tonic phase) and then jerking of limbs and face (clonic phase)
Infantile Spasms
Starts at 3-12mos, increase in intensity and duration with age
Causes of Infantile Spasms
Fever, genetics, cerebral lesions, brain disease, trauma, infection
Treatment of Infantile Spasms
meds, ketogenic diet (90% fat and low carb), extratemporal cortical resection, functional hemospherectomy
Spina Bifida
Any congenital defect involving insufficient closure of the spin - neural tube defect
Meningomyelocele
Spine damage (sac breaks skin)
Meningocele
No damage to spinal cord (75%)
S&S of Spina Bifida
Paralysis, lack of sensation, hydrocephalus, visible protrusion in the back
Treatment of Spina Bifida
Surgical repair
Hydrocephalus
Result of imbalance between production and absorption of CSF - Increased CSF in brain causes abnormal enlargement of brain ventricles
S&S of Hydrocephalus
Large head, rapid growth of head, bulging anterior fontanels, N/V, sleepiness, irritability, seizures, eyes fixed down, blurred/double vision
Causes of Hydrocephalus
Obstructive (noncommunicating) - prevents CSF flow and Non-obstructive (communicating) - problem with producing or absorbing CSF
Types of Shunts
Ventricular Peritoneal (VP) - drains into peritoneal cavity
Ommaya Reservoir - can give meds and drain come
External Ventricular Device (EVD) - stay laying at all time
Cardiopulmonary bypass (CPB)
Artificial blood pump continuously propels blood forward into artificial oxygenator then to patient tissues
Cardioplegia pump
Introduce a high potassium solution directly to the heart to induce and maintain cardiac arrest
Cardiac Hemodynamic Parameters
Systole, diastole, ESV, EDV, CO
Systole
Heart contracts with ejection of blood
Diastole
Heart relaxes and fills with blood
End-Systolic Volume (ESV)
Volume of blood left in heart after contraction
End-Diastolic Volume (EDV)
Volume of blood in heart after filling
Preload
Volume of blood in ventricles at end of diastole
Afterload
Resistance left ventricle must overcome to circulate blood
Contractility
Force of contraction
Ductus Venosus
Gradually closes after birth
Ductus Arteriosus
Gradually constricts after birth
Foramen Ovale
Increased BF to lungs closes this after birth
Causes of Heart defects
Teratogenic, chance, familial link, chromosomal abnormalities
DiGeorge
Deletion at 22
S&S of CHD
Cyanosis, resp distress, CHF, decreased CO, abnormal cardiac rhythms, cardiac murmur, FTT
Cardiac Catheterization Monitoring
- Pressures within the heart
- O2 sats
- BF patterns
- Structural info (valves , chambers, great vessels)
Tetrology of Fallot
- Ventricular septal defect
- Pulmonary stenosis
- Overriding aorta
- Right ventricular hypertrophy
S&S of TOF
Clubbing, central cyanosis
Treatment of TOF
Beta blockers, morphine, prostaglandin EI, surgery, +/- BT shunt, subclavian artery to PA
Tricuspid Atresia (TA)
Absent of imperforate tricuspid valve
S&S of TA
Cyanosis, acute resp failure, hypoxemia, acidosis
Treatment of TA
Creation of shunts
Complications of Catheterization
Arrhythmias, bleeding, cardiac perforation, CVA, hypercyanotic spells, vascular complications, infection
Post-Cath nursing care
- Arterial perfusion: pallor, mottling, decreased pulses, cool skin, decreased cap refill
- Venous obstruction: edema,infection
Components of Blood
Plasma (55%), WBC & Platelets (4%) and RBC (41%)
Plasma
For coagulation (clotting)
WBC and Pletelets
Fight infection, stop bleeding
RBC
Carry oxygen
RBC count
Actual RBC count
Hemoglobin (Hgb)
Measure of heme & globin protein
Hematocrit (Hct)
Indirect measure of RBC’s
Mean Corpuscular Volume (MCV)
Size of RBC’s
WBC count
Actual number of WBCs
Differentials
WBC types
Platelet Count
Number of platelets per blood volume
Anemia
Decreased production and increased destruction/blood loss, sequestration
Sizes of RBC’s
Microcytic (small)
Normocytic (normal)
Macrocytic (large)
Anemia r/t decreased production
Marrow infiltration/injury, nutritional deficiency, erythropoietic deficiency, ineffective erythropoiesis
Hemolysis - Extrinsic
Acquired
Hemolysis – Intrinsic
Inherited
Iron Deficiency Anemia
Excessive blood loss, inadequate intake, increased demand, impaired absorption
Management of Anemia
Dietary education - iron rich foods, decrease milk intake
Iron supplementation
Sickle Cell Anemia
Qualitative defect of Hgb that is insoluble at low O2 concentration and forms “sickles” that are sticky and cause hemolysis and vasoocclusion in vessels
Manifestation of Sickle Cell Anemia
Acute pain, stroke, acute-chest syndrome, chronic infection, splenic infarction, renal impairment, dactylitis, priapism, retinal damage
ABCDEF of Sickle Cell
A) Assess and reassess pain
B) Believe child’s report of pain
C) Complications/Cause of pain
D) Drugs and distraction
E) Environment
F) Fluids - avoid overload
Decreased WBC’s
Increased risk of infection
Increased WBC’s
Infection, inflammation, tissue damage, leukemia
S&S of decreased Platelets
Bruising, nose bleed, bleeding gums, petichiae, purpura
Causes of decreased platelets
Infection, idiopathic thrombocytopenia purpura, DIC, meds, platelet disorders
Hemophilia a and b
X-linked recessive
Von WIllebrand Disease
Autosomal recessive/dominant
Common Sites for Childhood Cancers
CNS, bone, muscles, endothelial tissue, connective tissue, blood, lymph tissue
Leukemia
WBC grow out of control
Prevalence of Leukemia
32% of childhood cancer
Lymphoma
Tumour of the lymph tissue
- Hodgkins and Non-Hodgkins
S&S of Pediatric Brain Tumours
Headaches, N/V, visual/hearing problems, seizures, slurred speech, dysphagia, memory problems, difficulty concentrating
Posterior Fossa
60%
- Medullablastoma
- Astrocytoma
- Ependymoma
- Diffuse intrinsic pontineglioma
- atypical teratoid rhabdoid tumour (ATRT)
Cerebral Hemisphere
40%
- Astrocytoma
- ganglioma, craniopharyngiomas
- Supratentioal primitive neuroectodermal tumors (PNET)
Osteosarcoma
Increased risk in males, near growth plates, in long bones
Rhabdomyosarcoma
Soft-tissue tumour, increased head and neck, increased risk in males
Wilm’s Tumour (nephroblastoma)
In kidney cells - can grow out of it!
S&S of Wilms
“dancing eyes”, diarrhea
AE of Chemotherapy
Kills healthy cells, bone marrow suppression, mucositis, N/V, wt loss, constipation, diarrhea, immunosuppression, myelosuppression, alopecia, organ dysfunction
AE of Alkylating
Hemorrhagic cystitis, nephrotoxicity, neurotoxicity
AE of Antiometabolites
Hepatotoxicity, dermatitis, neurotoxicity, fever
AE of Steroids
Immune suppression, mood changes, diabetes, HTN
AE of Asparginase
Clots, pancreatitis
AE of antitumour antibiotics
Heart issues
Radiation
Breaks bonds within cells to damage/kill
AE of Radiation
Fatigue, memory loss, decreased development/grotwh, N/V, skin burning, myelosuppression, organ dysfunction
Stages of Grief
1) Denial
2) Anger
3) Bargaining
4) Depression
5) Acceptance
Underweight BMI for children
< 18.5
Normal BMI for children
18.5-24.9
Overweight BMI for children
25-29.0
Obese BMI in children
> 30
How much physical activity should children get
1 hour per day
Wellness Assessment for Children
Social, psychological, spiritual, physical
Preconception care
Wt/nutrition/exercise, modifiable risk factors, folic acid & iron, oral health, immunizations, screening for diseases/STI’s, genetic counselling, family planning, social risk factors, optimize mental health
Routine screening in pregnancy
Blood group, Rh and Hgb, infectious diseases, gestational diabetes, perinatal serum, group B strep (35-37wk), asymptomatic bacteriuria
Non-Routine Screening in pregnancy
more ultrasounds, doppler flow studies, marker tests, nuchal translucency, amniocentesis, chorionicvillus, non-stress test, biophysical profile (BPP), measurement of amniotic fluid
Role of Amniotic Fluid
Cushions fetus, temp control, infection control, lung & GI development, muscle & bone development, umbilical cord support
Oligohydramnios
Too little amniotic fluid
Polyhydramnios
Too much amniotic fluid
1st Trimester Screening
11-14wks. PAPP-A, BetahCG, r/o chromosome disorders
2nd Trimester Screening
15-20wks. Quad screen - AFP, E3, Inhibin A and Betahcg
5 P’s of Labour
- Passage(way)
- Passenger
- Powers
- Position
- Psychosocial
Passage(way)
Ability of pelvis and cervix to accommodate passage of fetus
- Optimal Pelvis = gynecoid, arthropoid
- Less Optimal = android & platypelloid