Parameters

Question 1

Tidal Volume (TV or VT)

Answer 1

volume of gas delivered with each breath

Question 2

Fraction of Inspired Oxygen (FiO2)

Answer 2

• Oxygen concentration ng air being delivered sa patient
• The higher the percentage, the more severe the patient
• Kahit percent ang nakalagay we view it as decimal
• Typical range: 35%-100%

Question 3

Pressure support

Answer 3

• how fast u deliver air to assist pt with sponti breath
• the more we apply, the larger the breath the pt is gonna be able to take
• if di compliant yung lungs ng pt, dapat alam mo how fast yung idedeliver mo na air to prevent deflation or collapse and sticking of lungs

Question 4

Peak Inspiratory Pressure (PIP)

Answer 4

• max pressure or force reached during inhalation by yung contraction ng diaphragm
• index siya of ability to maintain lung expansion and avoid atelectasis

Question 5

RR / Frequency

Answer 5

• Breaths per minute delivered to pt
• In volume control vents, this is the volume of air set to be delivered with each breath
• RR / 60 = amount of time between each indiv breath
• Back up rate: 18 or 20

Question 6

I:E Ratio

Answer 6

Proportion of the duration ng inspiration to expiration

Question 7

Positive End Expiratory Pressure (PEEP)

Answer 7

Pressure given to pt at expiratory level to KEEP alveoli open
Caution: barotrauma that can eventually lead to pneumothorax

Question 8

Continuous Positive Airway Pressure (CPAP)

Answer 8

• Where pressure is applied in both inspiration and expiration; continuous to keep alveoli open
• vs. PEEP: only applies to expiration

Question 9

Static Compliance (CSTAT)

Answer 9

How compliant the lungs are

Question 10

Inspiratory Resistance (Rinsp)

Answer 10

How patent the airway is

Question 11

Which 2 parameters help us improve our pt’s oxygenation?

Answer 11

• PEEP
• FiO2

Question 12

Which complication is associated with excessively high levels of PEEP?

Answer 12

Barotrauma > pneumothorax

Question 13

Minute Volume (MV)

Answer 13

• Amount of air being delivered per minute
• Product of tidal volume and frequency(RR)
• Greater the MV, greater CO2 clearance

Question 14

Plateau Pressure (Pplat)

Answer 14

• Pressure applied to hold open small airways & alveoli BEFORE expiration
• indication of: lung compliance
• high Pplat = problem w/ pt’s lung compliance
• Goal: < 30 to help prevent barotrauma

Question 15

End-tidal carbon dioxide (ETCO2)

Answer 15

• Level of carbon dioxide released at the end of an exhaled breath
• Reflects pt’s ventilatory status, respiratory effort

Question 16

Which parameters keep alveoli open?

Answer 16

PEEP, PPlat, CPAP