Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Oxygen Transport -
Oxygen Transport - HCCRT
| Question | Answer |
|---|---|
| Hypoxic Hypoxia | Low PaO2 |
| Anemic Hypoxia | Decreased Hb or O2 carrying capacity of Hb. |
| Circulatory Hypoxia - Cardiac | Insufficent pulmonary blood flow |
| Circulatory Hypoxia - Stagnant | Decrease or absent blood flow to tissue cells. Also, arterial-venous shunting: Blood bypasses tissue cells. |
| Polycythemia | Increased amount of RBC's in response to chronic hypoxemia. Resulting blood viscosity increase (thick blood)offsets some beneficial effects by increasing myocardial work. |
| Cyanosis | A blueish discoloration of the skin or mucosa caused by hypoxemia. Technical definition > 5 gm% of reduced Hb. |
| Digital Clubbing | Chronic Pulmonary Osteoarthropathy - Diagnosis made by dissapearance of normal finger/nailbed angle. |
| Arterial Blood Gas (ABG) | Measurement of the gases in the arterial blood which is on it's way back from the lungs going to the various body parts & tissues. |
| Arterial Blood Gas (ABG) | Lower in CO2 and higher in O2. |
| Arterial Blood Gas (ABG) | Tells how good a job the lungs are doing removing CO2 and providing O2. |
| Normal Arterial Blood Gas Value - pH | 7.35 - 7.45 |
| Normal Arterial Blood Gas Value - PCO2 | 35-45 mmHg (PaCO2) |
| Normal Arterial Blood Gas Value - HCO3 | 22-28 mEq/L |
| Normal Arterial Blood Gas Value - PO2 | 80-100 mmHg (PaO2) |
| Normal Arterial Blood Gas Value - BE | +/- 2.0 |
| Blood Gas Analyzer | Analyzes pH, PCO2, PO2, BE, & SaO2 estimated. |
| Co-Oximeter | Analyzes Hb, COHb, MetHb & SaO2 measured. |
| Oxygent Content Calculation (CaO2) | (gm%Hgb x 1.34) x SaO2 + (.003 x PaO2) |
| O2 may be dissolved in plasma. When carried this way, it exerts a partial pressure and is expressed as: | PaO2 |
| What is the more commonly used lab value? | PaO2 |
| What lab value is more meaningful and a better assesment of the patients oxygentation status? | SaO2 |
| Where do you get the PaO2 value from? | ABG |
| Where do you get the SaO2 value from? | Co-Oximetry |
| Oxyhemoglobin Dissociation Curve | Illustrates the % of hemoglobin that is chemically bound to oxygen at each oxygen pressure. |
| Shunt | Cardiac output that reaches left heart without having exchanged gases in the alveoli. |
| True/Absolute Shunt - Anatomic | Blood flow from the right to the left heart without perfusing alveoli. |
| True/Absolute Shunt - Capillary | Perfusion of unventilated alveoli. |
| Shunt-Like Effect | Caused by impaired ventilation and/or perfusion. |
| Venous Admixture | End result of pulmonary shunting. |
| Oxygen Dissociation Curve | (or Oxygen–Hemoglobin Dissociation Curve) Plots the proportion of hemoglobin in its saturated form on the vertical axis against the prevailing oxygen tension on the horizontal axis. |
| CaO2 = | (gm% Hgb x 1.34) x SaO2 + (0.003 x Pa02) |
| How is most of our oxygen carried? | Bound to Hemoglobin |
| Abnormal Hemoglobin - Deoxygenated/Reduced | Hemoglobin that has reduced or no oxygen |
| Abnormal Hemoglobin - Fetal | Fetal & Newborn Hemoglobin |
| Abnormal Hemoglobin - Carboxyhemoglobin | Carbon Monoxide & Hemoglobin |
| Abnormal Hemoglobin - Methemoglobin | Met Molecule & Hemoglobin |
| Bohr Effect | States that an increasing concentration of protons and/or carbon dioxide will reduce the oxygen affinity of hemoglobin. |
| A-aDO2 | {(PB - PHO2) x FiO2} - PaCO2 x 1.25 |
Created by:
CLPRRT
Popular Respiratory Therapy sets