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67 Cards in this Set
- Front
- Back
CPP range |
60 -100 |
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ICP RANGE |
0- 10 |
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V02 measures what? |
Oxygen consumption |
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What is a normal V02? |
250ml/min |
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What increases V02? |
Stress , anxiety, temperature |
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Hi w do you calculate V02? |
V02= C.O. - Cv02 |
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What does the (Pa02/ PA02) gradient identify? |
Arterial vs alveolar 02. Helps identify intrapulmonary shunting. |
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What does the Pa02/Fi02 ratio measure? |
Measures lung function of critual patients. Arterial oxygen change for Fi02 change |
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What does D02 measure? |
Delivery of 02 to the tissues |
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How do you calculate D02? |
C.0. x Ca02 x 10= D02 |
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What does the 02ER measure ? |
The extraction ratio (V02) to 02 delivery (D02) |
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What does the Oxygen index measure? |
The severity of respiratory imparment. |
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How do you calculate the Oxygen Index? |
OI = Fi02 x MAP x100 / Pa02 |
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How do you calculate Pi02? |
Pi02= Fi02 x (760-47) |
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How do you calculate PA02 for an Fi02 less than 60% |
PA02= Pi02-PaC02(1.2) |
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How do you calculate a PA02 for an Fi02 greater than 60% |
PAO2= Pi02-PaC02 |
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What is a normal P/F ratio? |
> 350-380 |
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What does a P/F ratio of 200-300 indicate? |
V/Q mismatch/ mild ARDS |
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What does a P/F ratio of 100-200 indicate? |
Some shunting/ moderate ARDS |
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What does a P/F ratio of < 100 indicate? |
Refractory hypoxemia, severe shunting/ ARDS |
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How do you calculate A-a gradient? |
P(A-a) x 02 |
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What would be an abnormal A-a gradient on room air? |
> 5-10 torr |
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What would be an abnormal A-a gradient on 100% Fi02? |
>25 -65 torr |
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What would an A-a gradient of > 300 torr on 100% Fi02 indicate? |
Severe shunting |
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What would an A-a gradient of > 300 torr on 100% Fi02 indicate? |
Severe shunting |
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How do you calculate a/A ratio? |
Pa02/PA02 |
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What is a normal a/A ratio? |
>0.75 |
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What does an a/A gradient of 0.35-0.75 indicate? |
Hypoxemia, likely due to V/Q mismatch. |
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What does an a/A gradient of <.35 indicate? |
Hypoxemia due to shunting |
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How do you calculate 0I? |
Fi02 x MAP x 100 Pa02 |
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What is a normal OI ? |
Less than 5-8 |
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What does an IO of >8 with a P/F ratio of <200 indicate? |
Moderate to severe RDS |
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How do you calculate VD/VT ratio? |
PaC02-PEC02 PaC02 |
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What is a normal Pa02 Range? |
60-100 |
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How do you calculate Risbi score ? |
RR / Vt in liters Example, Someone is breathing a min ventilation of 11 liters. So 11 liters / rr of 20 = .55 L |
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What RISBI score would signal it’s ok to extubate? |
<105 |
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What is a normal NIF? |
> -60 |
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What vital capacity would you want to extubate? |
> 15ml/ kg |
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What is the normal range for a mixed venous 02? (Pv02) |
38 to 42 torr |
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What is the normal range for Sv02? |
68-77 % |
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What is the normal range for Cv02? |
14-16 ml/dl |
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What are some major causes of hypoxemia ? |
Hypoventilation V/Q inequality Intrapulmonary shunting |
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What are 2 types of HD monitoring catheters ? |
PA( swan) Central line triple lumen |
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What is a normal blood pressure? |
120/80 |
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What is a normal systolic range ? |
90-120 |
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What is a normal diastolic range? |
60-80 |
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What is a normal MABP range? |
70- 105 |
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What is average MABP? |
90 |
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What does the CVP indirectly measure ? |
Right atrial pressure (RAP) |
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What is the CVP range ? |
2-6 mmhg with a mean of 4 |
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What is a normal PAP? |
25/10 |
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What is the systolic PAP range ? |
15-30 |
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What is the diastolic PAP range? |
8-15 |
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What is the MPAP range ? |
9-18. With 15 in the middle |
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What does the PCWP indirectly measure ? |
Left atrial pressure (LAP) |
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What is a normal PCWP range? |
6-12,. Mean of 10 |
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List what will happen if PAP increase . |
Increased RV contraction Hypervolemia Pulmonary embolism Left ventricular failure Vasoconstriction Hypoxemia ( e.g. ARDS/ COPD) |
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List what will happen if PAP is decreased. |
RV failure Hypovolemia |
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List what will happen if PAWC/ PCWP pressures increase . |
LV failure/ cardiogenic shock Hypovolemia Cardiac tamponade Pneumothorax |
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List what will happen if PAWP/ PCWP pressure decreses . |
Shock other than cardiogenic Hypovolemia Spontaneous inspiration |
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How to calculate cardiac index ? (CI) |
C.O. ÷ BSA |
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How to calculate stroke volume? (SV) |
SV = C.O. ÷ HR |
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What's a normal cardiac output? |
4-8L a min |
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How do you calculate C.O. ? |
SV x HR |
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How do you calculate CI ? |
C.O. ÷ BSA |
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How do you calculate SV? And what is the normal range? |
C.O. ÷ HR. Normal range (60-130) ml / beat |
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How do you calculate EF? Ejection fraction. And what is the normal percentage? |
SV÷ EDV. 55% and up is normal |