SR 24 - Surgical Respiratory Care

Question 1

What is the most common cause of fever in the first 28-hours post-op?

Answer 1

Atelectasis

Question 2

What is absorption atelectasis?

Answer 2

Elevated inhaled oxygen replaces the nitrogen in the alveoli resultin in collapse of the air sac (atelectasis)
Nitrogen keeps alveoli open by ‘stenting’ them

Question 3

What is incentive spirometry?

Answer 3

Patient can document tital volme and with have an ‘Incentive’ to increase it
Turns using the lungs into a game

Question 4

What is oxygen-induced hypoventilation?

Answer 4

Occurs in patients with severe COPD, who have lost their CO2 drive - oxygen is the main stimuli for the respiratory drive
If given supplyemental oxygen, they will have a decreased respiratory drive and hypoventilate

Question 5

Why give supplemental oxygen to a patient with a pneumothorax?

Answer 5

Pneumothorax is mostly nitrogen. Increasing teh O2 in the alveoli increasee the nitrogen gradient and results in faster absorption of the pneumothorax

Question 6

What is the maximum oxygen FiO2 delivered by a nonrebreather mask?

Answer 6

80-90%

Question 7

How do you figure out the PaO2 from an O2 sat?

Answer 7

40 = 70
50 = 80
60 = 90

Question 8

How much do you increase the FiO2 by each liter added to the nasal cannula?

Answer 8

3%