Pediatric Resp Flashcards
Common resp illnesses in kids:
Croup
Asthma
Bronchiolitis
Pneumonia
Foreign body aspiration
Upper airway symptoms:
Stridor
Supraclavicular and suprasternal retractions
Lower airway symptoms:
Wheezing
Subcostal and intercostal retractions
Important features of physical exam in resp peds emergencies:
General appearance
Level of activity
speaking/crying
Vital signs
Work of breathing
Lung exam
Hydration/circulation
Mental status
The 5th vital sign =
Pulse ox
Normal SpO2 in kids
Over 95%
Sensitivity of spO2 in predicting outcomes
Not sensitive
Respiratory Emergencies:
Differential Diagnosis
Croup
Rings and slings
GE reflux
Pulmonary disease
Asthma
Bronchiolitis
Foreign body aspiration
Cystic Fibrosis
Anaphylaxis
Pneumonia
Cardiac disease
15 mos healthy male
Acute onset of barky cough/gasping Awoke from sleep
1 day of rhinorrhea
Crying, upset with hoarse voice
Inspiratory stridor
Clear lungs
Diagnosis?
Croup
Croup:
- Aka?
- Ages?
- Etiology / Organisms?
- Most common etiology?
- Laryngotracheobronchitis
- Age 6 mos-3 yrs
- Always VIRAL etiology (RIPAM)
- RSV
- Influenza
- Parainfluenza
- Adenovirus
- Measles
- Parainfluenza
Pathophysiology of Croup:
Invasion of pharyngeal epithelium
Spread to larynx
Mucous production and edema
Subglottic larynx and vocal cord involvement
Croup:
History?
Preceeding URI symptoms
Fever
Abrupt onset of barking cough Distress with crying/agitation
Improvement on way to ED
Croup:
Physical Exam
Mild to moderately ill, nontoxic
Rarely cyanotic or hypoxemic
WOB
Inspiratory stridor
Barky, seal-like cough
Lungs clear
Croup:
Radiology
Rule out other dx
Subglottic narrowing
Steeple sign
Remember, croup is a clinical diagnosis!
Croup:
Labs?
Generally not useful
CBC with leukocytosis
Croup:
Differential Diagnosis?
Foreign body aspiration/obstruction
Viral URI
Tracheitis
Croup:
Therapy?
Cool mist/hot shower
Dexamethasone 0.6mg/kg (8mg) - PO or IM
Racemic Epinephrine – nebulized (if there is an audible stridor at rest)
Croup:
Disposition vs admit?
Majority outpatient management
Admission if there is…
- Questionable diagnosis
- Continued audible stridor
- Toxic appearance
- Dehydration and vomiting
- Very young (<3 mos?)
Seven year old with cough/SOB
History of wheezing in the past
Breathless; one-word answers
Sitting forward
Inspiratory & expiratory wheezes
Subcostal & intercostal retractions
What is the diagnosis?
Asthma
Asthma:
Pathophysiology?
- 1) Airway hyperresponsiveness
- Muscle constriction, edema, mucous production
- “Late phase” reaction at 4-12 hours - inflammatory cells and mediator
- Air trapping –> dead space ventilation –> V/Q mismatching
- 2) Chronic inflammation
Respiratory / Electrolyte side effects of asthma:
- Hypoxemia
- Hypercapnea & respiratory acidosis
- Metabolic acidosis
- Increased oxygen demand
- Increased energy consumption
- Respiratory failure
Parts of patient history with asthma to obtain:
A brief focused history + Comprehensive history
Parts of the brief focused history for asthma:
Duration of symptoms
Severity of symptoms
Current medication use
Hx of severe exacerbations
Signs, symptoms of infection
Parts of the comprehensive history for asthma:
Triggers
Possible foreign body aspiration
Activity level
Oral intake
ROS