Bubble CPAP Therapy

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Questions and Answers

What is the effect of bubble CPAP on the functional residual capacity (FRC)?

It has no effect on the FRC

It maintains the FRC

It decreases the FRC

It increases the FRC (correct)

What is the effect of the high-frequency oscillatory ventilator-like effect produced by bCPAP on the ventilatory effect?

It decreases the ventilatory effect

It has no effect on the ventilatory effect

It is unknown

It augments the ventilatory effect (correct)

What is the result of using bCPAP therapy in former preterm infants with mild respiratory distress?

An increase in the observed breathing pattern and resistive work of breathing

A decrease in the observed breathing pattern and resistive work of breathing

An improvement in the observed breathing pattern and resistive work of breathing (correct)

No change in the observed breathing pattern and resistive work of breathing

What is the percentage increase in total lung capacity after receiving continuous bCPAP treatment for 2 weeks?

40% Signup and view all the answers

What is the result of early initiation of bCPAP in very low birth weight infants?

A decrease in the rates of BPD Signup and view all the answers

What is the percentage of infants with RDS weighing 1250 g or lesser who had a successful outcome with early bCPAP in the delivery room?

76% Signup and view all the answers

For neonates at high risk of oxygen toxicity and retinopathy of prematurity, what FiO2 is recommended by WHO?

0.3 Signup and view all the answers

Which nasal interface is preferred for administering bCPAP due to its lowest resistance to flow of gas?

Short binasal prongs Signup and view all the answers

What is a common complication associated with the use of binasal prongs?

Nasal injury Signup and view all the answers

What is the outcome when extubated to short binasal prongs compared to other interfaces?

Lower risk of extubation failure Signup and view all the answers

What is a concern with the use of nasal masks for bCPAP administration?

Inadequate seal Signup and view all the answers

Which nasal interface is associated with the lowest risk for nasal injury?

Nasal mask Signup and view all the answers

What is the primary reason why nasopharyngeal tubes are perceived as difficult to use?

They are prone to kink and easily blocked by secretions Signup and view all the answers

What is the main advantage of using a nasal mask interface over other alternatives?

It has a lower treatment failure rate Signup and view all the answers

What is the purpose of the free end of the expiratory tube being submerged in a calibrated transparent container?

To ensure that PEEP is being generated Signup and view all the answers

What is the purpose of the chin strap in the bCPAP setup?

To prevent air leak from the mouth Signup and view all the answers

What is the recommended material to use for securing the expiratory tube to the bottle?

Adhesive tape Signup and view all the answers

What is the purpose of the bonnet in the bCPAP setup?

To secure the interface in place Signup and view all the answers

Study Notes

Benefits of Bubble CPAP

Improves gaseous exchange and decreases the work of breathing by increasing and maintaining functional residual capacity (FRC), which in turn improves gas exchange and lowers PaCO2.
Produces a high-frequency oscillatory ventilator-like effect, which augments the ventilatory effect.
Improves breathing patterns and reduces resistive work of breathing in former preterm infants with mild respiratory distress.

Effects on Lung Development

Increases total lung capacity by 40% and lung weight, as well as total protein and DNA content, after continuous bCPAP treatment for 2 weeks.

Decreased Bronchopulmonary Dysplasia (BPD)

Early initiation of bCPAP in very low birth weight infants reduces the incidence of BPD.
Early bCPAP in the delivery room has been shown to be feasible and successful in 76% of infants with RDS weighing 1250g or less, resulting in reduced incidence of BPD.
The early initiation of bCPAP through nasal prongs has been suggested as the reason for the noted effect.

Contraindications of bCPAP

Unrepaired congenital diaphragmatic hernia
Esophageal atresia
Tracheoesophageal fistula
Choanal atresia
Cleft palate
Severe cardiovascular instability
Severe ventilatory impairment

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Description

Learn about the effects of Bubble CPAP therapy on gaseous exchange and breathing. Understand how it improves FRC, lowers PaCO2, and reduces work of breathing in patients with respiratory distress.