Pulmonary Flashcards
What is hypercapnia?
Inadequate alveolar ventilation, increased CO2 production
Pattern:
Tachypnea/tachycardia, cyanosis, AMS
hypoxemia
Pattern:
Agitation, confusion, flushing, tachycardia, headache
hypercapnia
Pattern:
Very low pH, very high CO2, mildly high bicarbonate
acute respiratory acidosis
Pattern: Low pH, very high CO2, very high bicarbonate
chronic respiratory acidosis
Pattern: Very high pH, very low CO2, mildly low bicarbonate
acute respiratory alkalosis
Pattern: High pH, very low CO2, very low bicarbonate
chronic respiratory alkalosis
Pattern: very low pH, very low CO2, very low bicarbonate
metabolic acidosis
Pattern: very high pH, mildly high CO2, very high bicarbonate
metabolic alkalosis
Pattern: recurrent infections, left sided mass in lower lobe, mucoid impaction surrounded by hyperinflated lung
Pulmonary sequestration
What is congenital adenomatoid malformation? How does it appear on CT?
overgrowth of pulmonary tissue in region of end bronchioles. presents as respiratory symptoms due to compression or infection. Translucent round lesions on chest xray
What is a bronchogenic cyst?
foregut cysts with closed epithelium lined saces containing hyaline cartilage plates, most common cysts of infancy, filled with fluid or mucus that may become infected
Pattern:
bronchial destruction, bronchial dilation, accumulation of infected secretions
Bronchiectasis from problems such as primary ciliary dyskinesia
Pattern: bronchiectasis, sinusitis, situs inversus
Kartagener’s syndrome
3 genes associated with primary ciliary dyskinesia
DNA11, DNA H5, DNA H 11
Pattern: chronic production cough, chronic nasal congstion with mucopurulent drainage without seasonal variation, chronic otitis media, sinusitis, nasal polyposis, wheeze, recurrent penumonia, bronchiectasis, respiratory distress in term neonates, male inferitility, hdyrocephalus, situs inversis
Primary ciliar dyskinesia
What is acute respiratory distress syndrome?
Acute inflammatory lung injury resulting in widespread pulmonary edema as a result of increased alveolar capillary permeability and epithelial destruction
Pattern: catastrophic pulmonary or nonpulmonary event, increased shunt fraction (hypoxemia), decreased lung compliance, diffuse pulmonary infiltrates, exclusion of left heart disease
ARDS
Pattern: refractory hypoxemia, tachypnea, increased work of breathing, respiratory muscle fatigue, protein rich pulmonary edema fluid
ARDS
Pattern: drooling, dysphagia, dysphonia, distress, deafening
epiglottitis
Steeple sign on CXR
croup
Thumb print on CXR
epiglottitis
Pathogen for viral croup
parainfluenza 1, 3
Pathogen for bacterial tracheitis
staph aureus
strept
moraxella catarrhalis
Pattern:
high fever, Child sitting toxic, drooling, dysphagia, muffled voice
epiglottis
Pattern: low-grade fever, child lying down, nontoxic, barking cough, hoarseness
Viral croup
Pattern: high fever, toxic, barking cough
bacterial tracheitis
What are 7 things to do as emergency treatment for upper airway obstruction
- continuous observation
- oxygen
- cool mist treatment
- racemic epinephrine
- decadron
- helium-oxygen mixtures
- intubation or tracheostomy
Pattern: unusual sleep postures, enuresis, systemic HTN, pulm HTN, snoring, distured sleep/agitate arousals, dytime neurobehavioral problems
OSAS
Who is at high risk for OSAS
- Craniofacial disorders/small upper airway
- Down syndrome
- Cerebral palsy
- neuromuscular disorders
- chronic lung disease
- central hypoventilation syndromes
- genetic/metabolic storage disorders
Breathing pattern during REM and non-REM
REM - erratic
Non-rem - regular
Pattern:
Increased work of breaking, abnormal use of respiratory muscle, prolonged expiratory phase of respiration, pulsus paradoxus, altered mental status
Lower airway disease
ABG analysis for hypoxemia
SaO2
ABG analysis for hypocapnia
PaCO2
ABG analysis for hypercapnia
PaCO2 >50mmHg
Describe patient and symptom with RSV associated apnea
- H/o or premature brith and neonatal apnea
2. Post-conceptional age at hospitalization
Overwhelmingly most common reason for cardiopulmonary arrest in children
primary respiratory
Cardiopulmonary arrest occurs most often in children of what age range
Pattern: cyanotic at rest in newborn, upon stimulation, baby begins to cry and cyanosis resolves
choanal atresia
Most common type of tracheo-esophageal fistula
Esophageal atresia with distal TEF - 85%
Pattern: maternal hydramnios, excessive mucus, respiratory distress, failure to pass NG tube
Atresia with fistula
Can tracheoesophageal fistula result in tracheomalacia?
yes
What are the three most common vascular rings?
- Double aortic arch
- Right aortic arch with ligamentum arteriosum
- Aberrant right subclavian artery
What are diagnostic tests for vascular rings?
Barium swallow
Bronchoscopy
Angiography
MRI scanning
Definition of BPD
Oxygen dependence, typical ground glass radiographic abnormalities, respiratory symptoms beyond 28 days of life