Term
| See your notes for Wednesday 9/8. Too many pictures and graphs to be able to describe in words. |
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Definition
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Term
| What is the idea V/Q ratio? |
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Definition
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Term
| What is more common; low V/Q or high V/Q? |
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Definition
| Low. (Decreased PO2/Increased PCO2) |
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Term
| Is V/Q equal in all parts of lung? |
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Definition
| No,Low V/Q in bottom of lung (VQ). |
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Term
| What is a normal PaO2 of blood? |
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Definition
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Term
| Why is there more ventilation in the top of the lung and more perfusion in the bottom? |
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Definition
| Because there's more air in the alveoli at the top of the lung, and more blood at the bottom of the lung, both due to gravity. |
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Term
| From where is ABG usually taken? |
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Definition
| Radial artery or an indwelling catheter. |
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Term
| What are the normal arterial blood values for the following: pH, pCO2, HCO3, PO2, SaO2? |
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Definition
pH=7.4 (7.35-7.45)
pCO2=40mmHg (35-45mmHg)
HCO3=22-26mEq (Bicarbonate/Base)
PO2=97-100%
SaO2=80-100% (O2 saturation in arterial blood) |
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Term
| What are the two main reasons we look at ABGs? |
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Definition
Acid/Base relationship status
Oxygenation of the blood |
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Term
| What is the relationship between Ventilation and PCO2? |
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Definition
| There is a direct, inverse relationship. So if ventilation increases, CO2 decreases and vice versa. |
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Term
| If a patient has uncompensated respiratory acidosis, what would you expect to see in the Co2 and HCO3 readings? |
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Definition
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Term
| If a patient has metabolic acidosis, what would you expect to see in the CO2 and HCO3 readings? |
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Definition
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Term
| If a patient has respiratory alkylosis, what is the cause? |
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Definition
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Term
| If a patient has metabolic Acidosis, what is the cause? |
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Definition
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Term
| See Case Studies assigned on sept 8th for ABG practice. |
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Definition
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