Week 3 Flashcards
structures of the upper airway
- oronasopharynx
- pharynx
- larynx
- upper trachea
structures of the lower airway
- lower trachea
- bronchi
- bronchioles
- alveoli
Infection rates: respiratory
- infants < 3 mo: lower due to maternal antibodies
- 3-6 mo: rate increases due to maternal antibodies decrease, own antibodies begins
- toddler/preschool: viral infection rate remains high (exposure)
- 5 years +: viral rate decreases, but incidence of mycoplasma pneumoniae & strep increase
influences to the response to respiratory tract infections
- diameter of airway is smaller in young children
- distance between structures is shorter causing organisms to move down respiratory tract quicker
- shorter and open eustachian tube allows easy access of pathogens to middle ear
factors leading to increased risk of developing URI with decreased resistance
- immune system deficiencies
- malnutrition
- anemia
- fatigue
- chilling of the body
- allergies
- preterm birth
- asthma
- cardiac anomalies
- cystic fibrosis
- daycare attendance
- second hand smoke exposure
seasonal variations: respiratory
- winter/spring: RSV season, Influenza A & B
- Autumn/Early winter: mycoplasmal infection
- Winter/cold weather: asthmatic bronchitis
respiratory assessment
- respirations (rate, effortless, labored)
- evidence of infection (fever, enlarged cervical lymph nodes)
- cough
- wheeze
- cyanosis
- chest pain (from coughing)
- nasal mucus
- halitosis
- strep throat
- viral infection
URIs
- nasopharyngitis
- pharyngitis
- tonsillitis
- otitis media
- acute epiglottitis
- LTB: laryngotracheobronchitis
Nasopharyngitis
- “common cold”
- caused by: rhinovirus, RSV, adenovirus, flu, parainfluenza virus
- fever, nasal congestion, irritable, poor feeding, sneezing, cough, muscle aches
- supportive care
- AAP does NOT recommend use of decongestants for under 4yrs
- prevention: frequent hand washing, cover mouth when sneezing, cough.
Pharyngitis
- 80-90% viral
- 10-20% due to Group A B-hemo strep
- abrupt onset with fever
- sore throat
- headache
- anterior cervical adenopathy
- abdominal pain
- the tonsils and pharynx may be inflamed and covered with exudate
diagnostic: pharyngitis
- rapid strep test
- if positive: GABHS (strep throat)
- if negative: likely viral; should confirm with a throat culture
treatment: pharyngitis
- Penicillin (oral or IM)
- if allergic: erythromycin
- can also treat with cephalosporins
- at risk for rheumatic fever and acute glomerulonephritis if not properly treated
- take entire course of AB! more at risk if partially treated.
- not contagious after 24h on AB
Nursing management: pharyngitis
- warm water gargles
- education and stress need to complete entire 10 days of antibiotic
- prevent exposure: avoid direct contact, cover mouth when cough/sneeze, do not drink/eat from same cup, handwashing
- prevent reinfection: new toothbrush
- return to school: after 24 hours on antibiotic and afebrile
- not contagious after 24 hours on antibiotic
Tonsillitis
- tonsils and adenoids serve as the body’s defense against infection
- they could become a site for acute and chronic infection
- tonsils are located on either side of the oropharynx
- tonsillitis often occurs with pharyngitis
- “kissing tonsils”: concern with airway
Tonsillitis: clinical manifestations
- same as pharyngitis (fever, sore throat, h/a)
- inflammation of tonsils and adenoids can cause difficulty eating and breathing
- hypertrophy can cause hypoxia, snoring, pulmonary HTN
- adeno-tonsillectomy indicated if 3+ infections/year (other: apnea, FTT, not eating/drinking).
Nursing mgmt: Tonsillitis
- warm water gargles
- mild analgesics (acetaminophen)
- post-surgical intervention: ice collar, monitor bleeding, nausea, vomiting, fluid intake, pain management, vital signs
- signs of bleeding/hemorrhage: risk occurs 7-10 after surgery (when scab begins to fall off from post surgical tissue healing)
- drooling bright red blood
- frequent swallowing (child is attempting to clear airway of blood by swallowing)
T&A: diet post op
- after fully alert: cool water, crushed ice, flavored ice pops, cool diluted juices (avoid fluids with red or brown and avoid citrus juices)
- first to second post op day: soft foods, soups, mashed potatoes (avoid mild and ice cream- coats the mouth and if child coughs, may initiate bleeding)
- avoid rough, scratchy foods and spicy foods
Otitis Media
- acute is most frequent diagnosis in outpatient pediatric clinics in the US
- defined by presence of fluid in the middle ear with inflammation
- most prevalence in infancy (6-24mo)
- incidence declines with age
risk factors: Otitis Media
- age: 6-18mo due to anatomy of eustachian tube (short and straight)
- day care: spread of respiratory infections among children
- formula fed infants: children that are breast fed have fewer episodes likely due to immunologic protective factors and positioning
- exposure to cigarette smoke: enhances attachment of pathogens in the middle ear space
- pacifier use: higher incidence (4mo cutoff)
- underlying disease (cleft palate, down syndrome, allergic rhinitis)
Otitis Media: pathogen
- bacterial: Streptococcus pneumoniae, Hermophilus influenzae, Moraxella catarrhalis
- viral: rhinovirus, RSV, coronaviruses
Otitis Media: symptoms
- antecedent event: URI, nasal congestion, allergies
- fever
- otalgia (ear pain)
- hearing loss (older kids)
- otorrhea: ear purulent discharge
Otitis Media: treatment
- oral antibiotics (high dose Amoxicillin) for 10 days
- if no improvement (fever, ear pain) in 2-3 days may need AB changed
Otitis Media: nursing management
- family teaching: avoid risk factors
- pain and fever mgmt: Ibuprofen or acetaminophen, topical ear drops (benzocaine)
- stress completion of AB
- prevention: immunizations, breast feeding, avoid propping the bottle, discontinue pacifier, prevent exposure to cigarette smoke
Croup syndromes
- acute epiglottitis
- acute LTB
Acute epiglottitis: incidence
- significant decrease in children after the addition of Hib vaccine to routine immunization schedule in the US
- most commonly affected in 2-8yo
Acute epiglottitis
- aka supraglottitis
- inflammation of the epiglottis and adjacent supraglottis
- without treatment can progress to life-threatening airway obstruction
- Haemophilus influenzae type b (Hib) is the most common infectious cause
Acute epiglottitis: CM
- abrupt onset
- sore throat, pain or swallowing
- fever
- tripod: insists on sitting upright and lean forward, chin thrust out, mouth open and tongue protruding
- drooling of saliva
- irritable, restless, anxious
- retractions may be evident
- mild hypoxia to frank cyanosis
- 3 D’s: dysphagia, drooling, distress
Acute epiglottitis: treatment
- suspected epiglottitis is a medical emergency
- prompt recognition and treatment are critical
- maintenance of airway is the focus
- examination should occur in setting where airway can be secured immediately (OR, ED, ICU)
- if suspect this, DON’T INSPECT MOUTH
- antibiotics
- humidified supplemental oxygen (if indicated)
- artificial airway (endotracheal intubation, nasotracheal intubation)
- nebulized epinephrine
- corticosteroids
Acute epiglottitis: prevention
- routine childhood immunizations (hib)
Acute epiglottitis: nuring management
- recognize s/s
- comforting/calming measures to decrease child’s anxiety
- avoid throat inspection
- administer humidified mist, oxygen, nebulized epinephrine, oral/parental medications as needed
- assist with intubation as required
Acute LTB
- most common croup syndrome
- mostly affects children <5yo
- parainfluenza virus types 2 and 3
- RSV, influenze A & B, M. pneumoniae
- usually preceded by a URI
- gradually descends to structures
Acute LTB: CMs
- gradual onset of low-grade fever
- barky, seal-like cough
- inflammation of larynx and trachea causes inspiratory stridor and retractions, nasal flaring
- hoarseness
- can progress to respiratory failure (obstruction)
Acute LTB: treatment
- maintaining airway
- high humidity with cool mist
- cool humidifiers or breathing cool humid air outside are effective in reducing mucosal edema
- mist: sitting in the bathroom filled with steam generated by running warm water from the shower
- avoid steam vaporizers to prevent scald burns
- fever reduction, antipyretics
- dexamethasone to reduce swelling
- nebulized epi
Acute LTB: nursing mgmt
- assessment of respiratory status
- recognition of deteriorating respiratory condition
- administration of cool humidified mist, nebulized epinephrine, oral corticosteroids
- inform parents of status, decrease anxiety
- teach parents signs of resp. distress
Lower airway infections
- Bronchitis (RSV, Bronchiolitis)
- Pneumonias
- Asthma
- Cystic Fibrosis
Bronchitis
- inflammation of the trachea and bronchi
- frequently associated with URI
- viral agents 6yo
- dry, hacking nonproductive cough
- self-limiting (5-10 days)
- rest, antipyretics, humidity
Bonchiolitis (RSV)
- acute viral infection at the bronchiolar level
- winter and early spring
- RSV is the most frequent cause of hospitalization in children <1yo
Bonchiolitis (RSV): CMs
- usually begins with URI
- low grade fever, OM, conjunctivitis
- cough, wheezing, pharyngitis, poor feeding
- can progress to cyanosis retractions, tachypnea
- lot of de-satting, o2 decrease