Respiratory Distress Syndrome (MIDTERM) Flashcards
Other Term for RDS
Hyaline Membrane Distress
When do Hyaline Membrane Distress mostly occur?
Preterm infants; Diabetic mothers; Cesarean Birth; Decreased blood perfusion of the lungs
What hours do RDS worsen?
48 to 72 hours of life
How many % will survive RDS?
90%
True or False: The more premature the baby the more severity of RDS.
TRUE
Pathologic feature of RDS.
Hyalin (fibrous) membrane formed an exudate on the infants blood that begins to line the: TERMINAL BRONCHIOLES, ALVEOLAR DUCTS, AND ALVEOLI
Where do gas exchange happen?
Lungs
How many lobes does the lungs have?
5 lobes
How many lobes do our left lung have?
2 lobes (upper and lower)
How many lobes do our right lung have?
3 lobes (upper, lower, and middle)
It prevents the exchange of oxygen and carbon dioxide at the alveolar-capillary membrane that interferes with effective oxygenation which causes low or absence of the surfactant.
Hyaline Membrane
The phospholipid that normally lines the alveoli and reduces surface tension to keep alveoli from collapsing on expiration.
Surfactant
The surfactant is composed of?
70% lipids and 30% protein
How many AOG till surfactant produces?
24 to 28 weeks of pregnancy
AOG till surfactant will be present in the amniotic fluid.
28 to 32 weeks
when to surfactant will be fully developed
35th week of AOG
During the lack of surfactant subtle signs may appear such as:
Low body temperature
Sternal and costal retractions
Tachypnea
Nasal tachypnea
Cyanotic mucous membrane
Due to lack of surfactant, closure of glottis causes
Expiratory grunting
As RDS increases, infant may exhibit
Seesaw respiration
Heart failure
Pale gray skin
periods of apnea
Bradycardia
Pneumothorax
Seesaw respiration during inspiration
Anterior chest retracts and abdomen protrudes
Seesaw respiration during expiration
Sternum rises
Evidence of heart failure
Low urine output and Edema of extremities
Therapeutic management for RDS
surfactant replacement
oxygen administration
keep infant warm
Surfactant replacement to restore naturally occurring lung surfactant to improve lung compliance
SURVANTA
It reduces infant’s metabolic oxygen demand
Keeping warm
Can help prevent preterm birth
Magnesium Sulfate
Steroids appear to quicken the formation of lecithin (24-34 weeks)
Betamethasone
Correct metabolic acidosis
Sodium Bicarbonate (IV)