Respiratory Panopto Part 2 Flashcards
Reduced oxygen levels in the blood =
Hypoxemia
Poor diffusion at the alveolar-capillary level (like Pulmonary Edema, Atelectasis) =
Hypoxemia
Not enough tissue oxygen ANYWHERE in the body, especially at the cellular level =
Hypoxia
Hypoxia for how long can lead to permanent brain damage?
3-5 Minutes
Causes of Hypoxia:
Hypoventilation (Not enough air, poor ventilation)
Hypoxemia (Low O2 levels from poor diffusion)
Low RBC (Decreased O2 carrying capacity)
Alterations in your respiratory function can be things like-
Hypoxia
Altered Breathing Pattern (Khusmal’s, Cheyne-Strokes)
The level of the O2 in the blood is measured as the-
pO2
A low pO2 can be labeled as-
Hypoxemia
Will lab values vary from place to place?
Yes
A normal lab value range for pO2 =
80 - 100 mm Hg
A normal lab value range for SaO2 =
95% - 98%
A normal lab value range for pCO2 =
35-45 mm Hg
A normal lab value range for RBC =
Men = 4.6 - 6.0 mm3 (Average is 5 Million)
Women = 4.0 - 5.0 mm3 (Average is 4.5 Million)
A normal lab value range for HgB =
Men = 13.5 - 18 g/dl
Women = 12 - 15 g/dl
A normal lab value range for HcT =
Men = 40% - 54%
Women = 36% - 46%
% of RBC’s in plasma, usually about 3x the HgB =
HcT
HcT is increased in -
HcT is lower in-
FVD (Fluid Volume Deficit)
Over-Hydration
What are your best indicators of tissue oxygenation?
pO2 and HgB
A low HgB and RBC value can be caused by-
Anemia
Hemorrhage
Blood Cancers (like Leukemia)
A low HgB value is gonna mean less oxygen can be carried by the blood. This results in-
Difficult Respirations
HcT can be used as an indicator for-
Hydration Status (Remember, High = Dry)
Amount of oxygen that is dissolved in the blood =
PaO2
Your Oxygen Saturation, the amount of oxygen that is bound to your hemoglobin =
SaO2
If your SaO2 is 90%, then what does that mean?
90% of your hemoglobin has O2 bound to it