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
TMC Prep
Equations/ Other
| Question | Answer |
|---|---|
| Hemoglobin (HB) Range | 12-16 |
| Deadspace/ Tidal Volume Ratio Short Name | Vd/ Vt |
| Only Ventilation Equation | Vd/Vt |
| Vd/Vt range | 20-40% |
| Vd/Vt equation | PaCO-PECOx100/PaCO |
| Vd/Vt range on ventilator | Up tp 60% |
| High Vd/Vt indicates | Pulmonary embolus |
| Alveolar Oxygen Tension Equation Short Name | PAO2 (alveolar air equation) |
| PAO2 equation | (O2% x 7)- (PaCO2 + 10) |
| A-a Gradient Short Name | A-aDO2 |
| A-aDO2 Equation | PAO2-PaO2 |
| A-aDO2 range | 25-65 mmHg |
| A-aDO2 of >65 but <300 mmHg indicates... | V/Q mismatch |
| A-aDO2 >300 mmHg indicates... | Shunt (venous admixture) |
| Arterial Oxygen Content Short Name | CaO2 |
| CaO2 equation | HB x 1.34 |
| CaO2 Range | 17-20 vol% |
| Formula that best indicates relationship to tissues oxygenation | CaO2 |
| Venous Oxygen Content Short Name | CvO2 |
| CvO2 Equation | =HB |
| CvO2 Range | 14-16% |
| Best place to draw for CvO2 | Pulmonary artery (need mixed venous blood) |
| Decreasing CvO2 values realtes to... | decreasing cardaic output |
| Arterial-venous oxygen content difference short name | C(a-v)O2 |
| C(a-v)O2 Equation | CaO2-CvO2 |
| C(a-v)O2 Range | 4-5% |
| C(a-v)O2 relationship with cardiac output | C(a-v)O2 increases-cardiac output decreases |
| P/F Ratio Equation | PaO2/FiO2 |
| P/F Ratio Normal Range | >380 |
| P/F Ratio <300 indicates... | Acute Lung Injury |
| P/F Ratio <200 indicates | ARDS |
| Oxygen Index (OI) Formula | Mean airway pressure X %O2/ PaO2 |
| Normal OI Value | <20 |
| OI >30 indicates use of | ARDS protocol |
| OI >40 indicates use of | ECMO |
| Shut Equation Short Name | QS/QT |
| QS/QT Equation | Take first # of A-aDO2 (300) Add +1 (3+1=4) Mutiply by 5 (4x5) (Shunt=20%) |
| QS/QT Range | 3-5% |
| Estimation of Saturation Equation | PaO2+30 *only works when PaO2 is 40-60 torr |
| R Shift in Oxygen Dissociation Curve | decreased pH-acidosis; decreased O2 affinity |
| L Shift in Oxygen Dissociation Curve | increased pH-alkalosis- increased O2 affinity |
| Cardiac Output Equation (QT) | VO2/ C(a-v)O2 X10 (Or Stroke Volume X HR) *Must be given VO2 or have info to calculate C(a-v)O2 |
| Cardiac Index (CI) Equation | C.O./ BSA |
| CI and C.O. relationship | CI=C.O./ 2m2 CI- L/min/m2 |
| Umbilical Artery Cath (UCA) on X-Ray | @ L3 |
| Neonate PaO2 Range | 60-80 torr |
Created by:
user-1789922
Popular Respiratory Therapy sets