Respiratory Exam 1. Flashcards. felton. microbiology. What is the most common infectious disease of humans?. The common cold Also, the leading cause of acute morbidity and of visits to a physician in the US Major cause of industrial and school absenteeism.
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Respiratory Exam 1
Adenoviruses are major etiologic agents of acute respiratory disease [ARD] and pharyngitis. Also indicated in pathogenesis of : epidemic keratoconjunctivitis, hemorrhagic cystitis, gastroenteritis, and rashes.
Crystal violet stained smear of the pharyngeal or tonsillar exudate showing the presence of numerous fusobacteria and spirochetes suggests:
Diagnose by clinical characteristics of the illness and may be confirmed by examination of the larynx
Frequency has decreased dramatically since the introduction of the H. influenzae vaccine
Parainfluenza type 3 is the 2nd most frequently associated agent.
Influenza A produces this disease in a broader age range of children and with a higher frequency of hospitalization and tracheotomy.
Condition in which cough
a chronic and excessive secretion of mucus
is present in the tracheobronchal tree
& is NOT due to specific diseases such as asthma or TB
Pts who have coughed up sputum on most days during at least 3 consecutive months for more than 2 successive years.
These make up 87% of the isolates obtained from children.
In the hospital, RSV involvement is higher.
Fractional concentration x [barometric pressure - 47mmHg]
R = pulmonary CO2 elimination rate
pulmonary O2 uptake rate
All portions of the system not available for gas exchange
the sum of the anatomic dead space and the alveolar dead space volumes
POSTERIOR basal hypothalamus
& RETICULAR FORMATION
Ag IgE crossbridging degranulation of mast cell release of histamine
Histamine vasodilation drop in BP reflex tachy
Due to actions at the H2 site
Night time sleep aid
Blocks dopamine receptor in the
chemoreceptor trigger zone
[in area postrema, which is not protected by the blood brain barrier]
Itching with allergic conjunctivitis
All block degranulation of mast cells
Impotence and decreased libido
Sometimes added to local anesthetics to prevent systemic effects.
Robitussin DM= dextromethorphan (antitussive) + guaifenesin
Keratinized stratified squamous epithelium
Tall, columnar cells with a microvillus border
Type II alveolar cells
Stratified squamous epithelium