Pulmonary: Respiration

Question 1

Arterial Oxygenation: Atmospheric Pressure

Answer 1

• 159.6 mmHg

Question 2

Arterial Oxygenation: Fraction of oxygen in the air inspired FiO2

Answer 2

• Percentage of oxygen in air based on a Toal of 1
• FiO2 of room air=21 % which is written as 0.21
• Supplemental oxygen increases the percentage of oxygen in the patients atmosphere

Question 3

Arterial Oxygenation: PaO2

Answer 3

• PaO2 of 90-100=normal
  Corresponds to
• SpO2 of 98-100%

Question 4

Arterial Oxygenation: Oxygen dissociation

Answer 4

• Between 55-60 mmHg=the point at which oxygen disassociates more quickly from hemoglobin
• Corresponds to a SpO2 of 88-90%
• Below this point supplemental O2 should be considered

Question 5

Alveolar Ventilation

Answer 5

• Ability to remove CO2 from circulation and maintain pH

Question 6

Alveolar Ventilation: Hypercapnea

Answer 6

• PaCO2 greater than 45

Question 7

Alveolar Ventilation: Hypocapnea

Answer 7

• PaCO2 less than 35

Question 8

Alveolar Ventilation PaCO2 and pH

Answer 8

• Increased PaCO2=decreased pH=More acidic

- Decreased PaCO2=Increased pH=More Alkalytic

Question 9

Alveolar Ventilation: HCO3

Answer 9

• Amount of bicarbonate ions within arterial blood

Question 10

Alveolar Ventilation: HCO3: Normal Range

Answer 10

• 22-28 mEq/L

Question 11

Alveolar Ventilation: HCO3 and pH

Answer 11

• Increased HCO3=Increased pH=More Alkylytic

- Decreased HCO3=Decreased pH=More Acidic