Respiratory Flashcards
URTI- presentation
fever, painful throat, nasal discharge, earache
URTI- complications
difficulty in feeding, febrile convulsions, acute exacerbations of asthma
commonest pathogens in coryza
RSV, rhinovirus, coronavirus
tonsilitis pathogens
viruses or bacteria- group A b haemolytic strep, EBV
bacterial causes in tonsilitis shown by
constitutional symptoms- headache, apathy, abdominal pain, white tonsillar exudate, cervical lymphadenopathy
what do you treat tonsilitis with
penicillin or erythromycin. avoid amoxicillin as if EBV infection then will lead to maculopapular rash
indications for tonsillectomy
recurrent severe, Quinsy, obstructive sleep apnoea
why are infants prone to acute otitis media
short, horizontal Eustachian tubes which dont function well
what is seen on examination of tympanic membrane in acute otitis media
red bulging tympanic membrane, loss of normal light reflex
complications acute otitis media
mastoiditis and meningitis
what can be given to treat acute otitis media
amoxicillin
indications for adenoidectomy
recurrent otitis media with effusion with hearing loss, obstructive sleep apnoea
presentation of laryngeal/tracheal infection
stridor, hoarseness, barking cough, dyspnoea. chest recession, RR, HR, agitation. do not examine throat
most common pathogen in croup
parainfluenza. others- influenza, RSV
presentation croup
barking cough, hoarse. preceded by coryza. worse at night
treatment moderate croup
oral dexamethasone, prednisolone, nebulised steroids
treatment severe croup
neb adrenaline and warm humidified O2 via face mask
what happens in croup
laryngotracheobronchitis. mucosal inflammation and increased secretions. oedema of subglottic area is the dangerous part as leads to narrowing of trachea
what is bacterial tracheitis (pseudomembranous croup)
similar to croup but fever, appears toxic, copious secretions. caused by staph aureus, treat with IV antibios and intubate and ventilate
what is acute epiglottitis due to
H influenza type b
what happens to patient with epiglottitis
intubation with anaesthetic. then cefuroxime for 3-5 days
what prophylactic drug should be given to household contacts of pt with acute epiglottitis
rifampicin
difference between croup and acute epiglottitis
epiglottitis- more acute onset, no cough, soft insp stridor instead of harsh, no preceding coryza, high grade fever, not able to drink, drooling, toxic very ill appearance
what is whooping cough caused by
bordatella pertussis
phases of whooping cough
catarrhal phase (runny nose, coryza for a week), paroxysmal phase (coughing followed by whoop, can lead to vomiting- lasts 3-6 weeks), convalescent phase (symptoms decline, lasts months)
what happens in infants when whooping is absent
apnoea
treatment of whooping cough
erythromycin but given in catarrhal phase. prophylactic erythromycin to household contacts
what is the commonest serious respiratory infection
bronchiolitis
what age is common in bronchiolitis and what pathogen
1-9 months, rare after 1 year. RSV in 80%
features bronchiolitis
coryzal symptoms, dry cough, SOB, difficulty feeding, recurrent apnoea
those at risk of severe bronchiolitis
premature (bronchopulmonary dysplasia), underlying lung disease, congenital heart disease
signs in bronchiolitis
recession, tachypnoea, fine end inspiratory crackles, wheeze, tachycardia, cyanosis/pallor