Alteration in gas exchange Flashcards
(47 cards)
why are infants belly breathers
because their intercostal muscles are still week
why dont infants have productive coughs
because they dont produce alot of mucus
how many alveoli does an infant have compared to a 7-8 year old
50million, 7-8 year old have 300 million
what is tidal volume
the amount of air moved in and out of the lungs
how many L of oxygen do babies consume compared to adults
infants 6-8L/min, adults 3-4L/min
what is the RR of a preterm infant
40-60
what is the RR of newborn- 1 year
30-35
what is the RR of a 2-6 year old
21-25
what is the RR of a 6-12 year old
19-21
what sound would you hear when percussing someone with pneumonia
dull
what are antihistamines for
allergic rhinitis, asthma
what are anticholinergic for
acute or chronic wheezing - by bronchodilation
what do B2 agonist do
smooth muscle relaxer results in bronchdilation
what are the organisms that cause upper respiratory infections
Most common: rhinovirus, parainfluenza, adenovirus
Others: parainfluenza, adenovirus, human metapneumovirus
how many colds to children have a year
6-9 colds per year
how long do respiratory infections last
7-10 days
a cold past 7-10 days is what
sinuisitis rhinosinusitis
acute sinusitis is less then how many days
30 days
chronic sinusitis is between _ and _ week
4 and 6
what is bronchiolitis
acute inflammatory process of the bronchioles and small bronchi
what are some organisms that cause bronchiolitis
RSV, adenovirus, parainfluenza, metapneumovirus
how does RSV infect someone
invades nasopharynx into lower airway - aspiration of secretions - spreads from adults to children
what does RSV do to the lungs
Air trapping occurs as a result of the inability to achieve full expiration
Hyperinflation and atelectasis occur
Pulmonary ventilation and perfusion are mismatched
Hypoventilation r/t increased work of breathing
what are some ss of Bronchiolitis (RSV)
fever, cough, wheezing, paryingitis, mucus, elevated ESR